Abstract base class for all "structural" finite elements. More...

#include <structuralelement.h>

Inheritance diagram for oofem::StructuralElement:

Collaboration diagram for oofem::StructuralElement:

Public Member Functions
	StructuralElement (int n, Domain *d)
	Constructor. More...

virtual	~StructuralElement ()
	Destructor. More...

virtual void	giveCharacteristicMatrix (FloatMatrix &answer, CharType, TimeStep *tStep)
	Computes characteristic matrix of receiver of requested type in given time step. More...

virtual void	giveCharacteristicVector (FloatArray &answer, CharType type, ValueModeType mode, TimeStep *tStep)
	Computes characteristic vector of receiver of requested type in given time step. More...

virtual void	computeMassMatrix (FloatMatrix &answer, TimeStep *tStep)
	Computes mass matrix of receiver. More...

virtual void	computeLumpedMassMatrix (FloatMatrix &answer, TimeStep *tStep)
	Computes lumped mass matrix of receiver. More...

virtual void	computeConsistentMassMatrix (FloatMatrix &answer, TimeStep tStep, double &mass, const double ipDensity=NULL)
	Computes consistent mass matrix of receiver using numerical integration over element volume. More...

virtual void	giveMassMtrxIntegrationgMask (IntArray &answer)
	Returns mask indicating, which unknowns (their type and ordering is the same as element unknown vector) participate in mass matrix integration. More...

virtual void	computeStiffnessMatrix (FloatMatrix &answer, MatResponseMode rMode, TimeStep *tStep)
	Computes numerically stiffness matrix of receiver. More...

void	computeStiffnessMatrix_withIRulesAsSubcells (FloatMatrix &answer, MatResponseMode rMode, TimeStep *tStep)

virtual void	computeInitialStressMatrix (FloatMatrix &answer, TimeStep *tStep)
	Computes initial stress matrix for linear stability problem. More...

virtual void	computeField (ValueModeType mode, TimeStep *tStep, const FloatArray &lcoords, FloatArray &answer)
	Computes the unknown vector interpolated at the specified local coordinates. More...

virtual void	giveInternalForcesVector (FloatArray &answer, TimeStep *tStep, int useUpdatedGpRecord=0)
	Returns equivalent nodal forces vectors. More...

virtual void	giveInternalForcesVector_withIRulesAsSubcells (FloatArray &answer, TimeStep *tStep, int useUpdatedGpRecord=0)

virtual void	computeStrainVector (FloatArray &answer, GaussPoint gp, TimeStep tStep)
	Compute strain vector of receiver evaluated at given integration point at given time step from element displacement vector. More...

virtual int	giveIPValue (FloatArray &answer, GaussPoint gp, InternalStateType type, TimeStep tStep)
	Returns the integration point corresponding value in full form. More...

virtual void	computeResultingIPTemperatureAt (FloatArray &answer, TimeStep tStep, GaussPoint gp, ValueModeType mode)
	Computes at given time (tStep) the the resulting temperature component array. More...

virtual void	computeResultingIPEigenstrainAt (FloatArray &answer, TimeStep tStep, GaussPoint gp, ValueModeType mode)
	Computes at given time the resulting eigenstrain component array. More...

virtual int	adaptiveUpdate (TimeStep *tStep)
	Updates the internal state variables stored in all IPs according to already mapped state. More...

virtual void	updateInternalState (TimeStep *tStep)
	Updates element state after equilibrium in time step has been reached. More...

virtual void	updateYourself (TimeStep *tStep)
	Updates element state after equilibrium in time step has been reached. More...

virtual int	checkConsistency ()
	Performs consistency check. More...

virtual IRResultType	initializeFrom (InputRecord *ir)
	Initializes receiver according to object description stored in input record. More...

virtual void	giveInputRecord (DynamicInputRecord &input)
	Setups the input record string of receiver. More...

virtual const char *	giveClassName () const

virtual int	giveInternalStateAtNode (FloatArray &answer, InternalStateType type, InternalStateMode mode, int node, TimeStep *tStep)
	Returns internal state variable (like stress,strain) at node of element in Reduced form, the way how is obtained is dependent on InternalValueType. More...

virtual void	showSparseMtrxStructure (CharType mtrx, oofegGraphicContext &gc, TimeStep *tStep)
	Shows sparse structure. More...

virtual void	showExtendedSparseMtrxStructure (CharType mtrx, oofegGraphicContext &gc, TimeStep *tStep)
	Shows extended sparse structure (for example, due to nonlocal interactions for tangent stiffness) More...

virtual void	computeLoadVector (FloatArray &answer, BodyLoad load, CharType type, ValueModeType mode, TimeStep tStep)
	Computes the contribution of the given body load (volumetric). More...

virtual void	computeBoundarySurfaceLoadVector (FloatArray &answer, BoundaryLoad load, int boundary, CharType type, ValueModeType mode, TimeStep tStep, bool global=true)
	Computes the contribution of the given load at the given boundary surface in global coordinate system. More...

virtual void	computeBoundaryEdgeLoadVector (FloatArray &answer, BoundaryLoad load, int boundary, CharType type, ValueModeType mode, TimeStep tStep, bool global=true)
	Computes the contribution of the given load at the given boundary edge. More...

virtual void	computeEdgeNMatrix (FloatMatrix &answer, int boundaryID, const FloatArray &lcoords)
	computes edge interpolation matrix More...

virtual void	computeSurfaceNMatrix (FloatMatrix &answer, int boundaryID, const FloatArray &lcoords)
	Computes surface interpolation matrix. More...

virtual void	computeConstitutiveMatrixAt (FloatMatrix &answer, MatResponseMode rMode, GaussPoint gp, TimeStep tStep)=0
	Computes constitutive matrix of receiver. More...

StructuralCrossSection *	giveStructuralCrossSection ()
	Helper function which returns the structural cross-section for the element. More...

virtual void	createMaterialStatus ()

virtual void	computeStressVector (FloatArray &answer, const FloatArray &strain, GaussPoint gp, TimeStep tStep)=0
	Computes the stress vector of receiver at given integration point, at time step tStep. More...

virtual void	computeBmatrixAt (GaussPoint *gp, FloatMatrix &answer, int lowerIndx=1, int upperIndx=ALL_STRAINS)=0
	Computes the geometrical matrix of receiver in given integration point. More...

virtual void	computeNmatrixAt (const FloatArray &iLocCoord, FloatMatrix &answer)
	Computes interpolation matrix for element unknowns. More...

Methods related to nonlocal models
virtual void	updateBeforeNonlocalAverage (TimeStep *tStep)
	Updates internal element state (in all integration points of receiver) before nonlocal averaging takes place. More...

virtual void	giveNonlocalLocationArray (IntArray &locationArray, const UnknownNumberingScheme &us)
	Returns the "nonlocal" location array of receiver. More...

virtual void	addNonlocalStiffnessContributions (SparseMtrx &dest, const UnknownNumberingScheme &s, TimeStep *tStep)
	Adds the "nonlocal" contribution to stiffness matrix, to account for nonlocality of material model. More...

Public Member Functions inherited from oofem::Element
	Element (int n, Domain *aDomain)
	Constructor. More...

	Element (const Element &src)=delete

Element &	operator= (const Element &src)=delete

virtual	~Element ()
	Virtual destructor. More...

virtual void	drawYourself (oofegGraphicContext &gc, TimeStep *tStep)

virtual void	drawAnnotation (oofegGraphicContext &gc, TimeStep *tStep)

virtual void	drawRawGeometry (oofegGraphicContext &gc, TimeStep *tStep)

virtual void	drawDeformedGeometry (oofegGraphicContext &gc, TimeStep *tStep, UnknownType)

virtual void	drawScalar (oofegGraphicContext &gc, TimeStep *tStep)

virtual void	drawSpecial (oofegGraphicContext &gc, TimeStep *tStep)

virtual void	giveLocalIntVarMaxMin (oofegGraphicContext &gc, TimeStep *tStep, double &emin, double &emax)

virtual int	giveInternalStateAtSide (FloatArray &answer, InternalStateType type, InternalStateMode mode, int side, TimeStep *tStep)
	Returns internal state variable (like stress,strain) at side of element in Reduced form If side is possessing DOFs, otherwise recover techniques will not work due to absence of side-shape functions. More...

int	giveLabel () const

int	giveGlobalNumber () const

void	setGlobalNumber (int num)
	Sets receiver globally unique number. More...

elementParallelMode	giveParallelMode () const
	Return elementParallelMode of receiver. More...

void	setParallelMode (elementParallelMode _mode)
	Sets parallel mode of element. More...

virtual elementParallelMode	giveKnotSpanParallelMode (int) const
	Returns the parallel mode for particular knot span of the receiver. More...

int	packUnknowns (DataStream &buff, TimeStep *tStep)
	Pack all necessary data of element (according to its parallel_mode) integration points into given communication buffer. More...

int	unpackAndUpdateUnknowns (DataStream &buff, TimeStep *tStep)
	Unpack and updates all necessary data of element (according to its parallel_mode) integration points into given communication buffer. More...

int	estimatePackSize (DataStream &buff)
	Estimates the necessary pack size to hold all packed data of receiver. More...

const IntArray *	givePartitionList () const
	Returns partition list of receiver. More...

void	setPartitionList (IntArray &pl)
	Sets partition list of receiver. More...

virtual double	predictRelativeComputationalCost ()
	Returns the weight representing relative computational cost of receiver The reference element is triangular plane stress element with linear approximation, single integration point and linear isotropic material. More...

virtual double	giveRelativeSelfComputationalCost ()
	Returns the weight representing relative computational cost of receiver The reference element is triangular plane stress element. More...

virtual double	predictRelativeRedistributionCost ()
	Returns the relative redistribution cost of the receiver. More...

IntArray *	giveBodyLoadArray ()
	Returns array containing load numbers of loads acting on element. More...

IntArray *	giveBoundaryLoadArray ()
	Returns array containing load numbers of boundary loads acting on element. More...

virtual contextIOResultType	saveContext (DataStream &stream, ContextMode mode, void *obj=NULL)
	Stores receiver state to output stream. More...

virtual contextIOResultType	restoreContext (DataStream &stream, ContextMode mode, void *obj=NULL)
	Restores the receiver state previously written in stream. More...

virtual void	printOutputAt (FILE file, TimeStep tStep)
	Prints output of receiver to stream, for given time step. More...

void	giveLocationArray (IntArray &locationArray, const UnknownNumberingScheme &s, IntArray *dofIds=NULL) const
	Returns the location array (array of code numbers) of receiver for given numbering scheme. More...

void	giveLocationArray (IntArray &locationArray, const IntArray &dofIDMask, const UnknownNumberingScheme &s, IntArray *dofIds=NULL) const

virtual void	giveBoundaryLocationArray (IntArray &locationArray, const IntArray &bNodes, const UnknownNumberingScheme &s, IntArray *dofIds=NULL)
	Returns the location array for the boundary of the element. More...

virtual void	giveBoundaryLocationArray (IntArray &locationArray, const IntArray &bNodes, const IntArray &dofIDMask, const UnknownNumberingScheme &s, IntArray *dofIds=NULL)

virtual int	giveNumberOfDofs ()

virtual int	giveNumberOfInternalDofManagers () const

virtual DofManager *	giveInternalDofManager (int i) const
	Returns i-th internal element dof manager of the receiver. More...

virtual double	giveCharacteristicValue (CharType type, TimeStep *tStep)
	Computes characteristic value of receiver of requested type in given time step. More...

virtual void	computeTangentFromSurfaceLoad (FloatMatrix &answer, SurfaceLoad load, int boundary, MatResponseMode rmode, TimeStep tStep)
	Computes the tangent contribution of the given load at the given boundary. More...

virtual void	computeTangentFromEdgeLoad (FloatMatrix &answer, EdgeLoad load, int boundary, MatResponseMode rmode, TimeStep tStep)
	Computes the tangent contribution of the given load at the given boundary. More...

const IntArray &	giveBodyLoadList () const
	Returns receiver list of bodyloads. More...

const IntArray &	giveBoundaryLoadList () const
	Returns receiver list of boundary loads. More...

void	computeVectorOf (ValueModeType u, TimeStep *tStep, FloatArray &answer)
	Returns local vector of unknowns. More...

void	computeVectorOf (const IntArray &dofIDMask, ValueModeType u, TimeStep *tStep, FloatArray &answer, bool padding=false)

void	computeBoundaryVectorOf (const IntArray &bNodes, const IntArray &dofIDMask, ValueModeType u, TimeStep *tStep, FloatArray &answer, bool padding=false)
	Boundary version of computeVectorOf. More...

void	computeVectorOf (PrimaryField &field, const IntArray &dofIDMask, ValueModeType u, TimeStep *tStep, FloatArray &answer, bool padding=false)
	Returns local vector of unknowns. More...

void	computeVectorOfPrescribed (ValueModeType u, TimeStep *tStep, FloatArray &answer)
	Returns local vector of prescribed unknowns. More...

void	computeVectorOfPrescribed (const IntArray &dofIDMask, ValueModeType type, TimeStep *tStep, FloatArray &answer)
	Returns local vector of prescribed unknowns. More...

virtual int	computeNumberOfDofs ()
	Computes or simply returns total number of element's local DOFs. More...

virtual int	computeNumberOfGlobalDofs ()
	Computes the total number of element's global dofs. More...

int	computeNumberOfPrimaryMasterDofs ()
	Computes the total number of element's primary master DOFs. More...

virtual bool	computeGtoLRotationMatrix (FloatMatrix &answer)
	Returns transformation matrix from global c.s. More...

virtual bool	giveRotationMatrix (FloatMatrix &answer)
	Transformation matrices updates rotation matrix between element-local and primary DOFs, taking into account nodal c.s. More...

virtual bool	computeDofTransformationMatrix (FloatMatrix &answer, const IntArray &nodes, bool includeInternal)
	Returns transformation matrix for DOFs from global coordinate system to local coordinate system in nodes. More...

virtual void	giveDofManDofIDMask (int inode, IntArray &answer) const
	Returns dofmanager dof mask for node. More...

virtual void	giveInternalDofManDofIDMask (int inode, IntArray &answer) const
	Returns internal dofmanager dof mask for node. More...

virtual void	giveElementDofIDMask (IntArray &answer) const
	Returns element dof mask for node. More...

virtual double	computeVolumeAround (GaussPoint *gp)
	Returns volume related to given integration point. More...

virtual double	computeVolumeAreaOrLength ()
	Computes the volume, area or length of the element depending on its spatial dimension. More...

double	computeMeanSize ()
	Computes the size of the element defined as its length. More...

virtual double	computeVolume ()
	Computes the volume. More...

virtual double	computeArea ()
	Computes the area (zero for all but 2d geometries). More...

virtual double	computeLength ()
	Computes the length (zero for all but 1D geometries) More...

virtual void	giveBoundaryEdgeNodes (IntArray &bNodes, int boundary)
	Returns list of receiver boundary nodes for given edge. More...

virtual void	giveBoundarySurfaceNodes (IntArray &bNodes, int boundary)
	Returns list of receiver boundary nodes for given surface. More...

virtual IntegrationRule *	giveBoundaryEdgeIntegrationRule (int order, int boundary)
	Returns boundary edge integration rule. More...

virtual IntegrationRule *	giveBoundarySurfaceIntegrationRule (int order, int boundary)
	Returns boundary surface integration rule. More...

int	giveDofManagerNumber (int i) const
	Translates local to global indices for dof managers. More...

const IntArray &	giveDofManArray () const

void	addDofManager (DofManager *dMan)

DofManager *	giveDofManager (int i) const

Node *	giveNode (int i) const
	Returns reference to the i-th node of element. More...

virtual ElementSide *	giveSide (int i) const
	Returns reference to the i-th side of element. More...

virtual FEInterpolation *	giveInterpolation () const

virtual FEInterpolation *	giveInterpolation (DofIDItem id) const
	Returns the interpolation for the specific dof id. More...

virtual Material *	giveMaterial ()

int	giveMaterialNumber () const

CrossSection *	giveCrossSection ()

void	setMaterial (int matIndx)
	Sets the material of receiver. More...

virtual void	setCrossSection (int csIndx)
	Sets the cross section model of receiver. More...

virtual int	giveNumberOfDofManagers () const

virtual int	giveNumberOfNodes () const
	Returns number of nodes of receiver. More...

void	setDofManagers (const IntArray &dmans)
	Sets receiver dofManagers. More...

void	setBodyLoads (const IntArray &bodyLoads)
	Sets receiver bodyLoadArray. More...

void	setIntegrationRules (std::vector< std::unique_ptr< IntegrationRule > > irlist)
	Sets integration rules. More...

virtual integrationDomain	giveIntegrationDomain () const
	Returns integration domain for receiver, used to initialize integration point over receiver volume. More...

virtual MaterialMode	giveMaterialMode ()
	Returns material mode for receiver integration points. More...

virtual int	giveIntegrationRuleLocalCodeNumbers (IntArray &answer, IntegrationRule &ie)
	Assembles the code numbers of given integration element (sub-patch) This is done by obtaining list of nonzero shape functions and by collecting the code numbers of nodes corresponding to these shape functions. More...

int	giveRegionNumber ()

virtual void	postInitialize ()
	Performs post initialization steps. More...

virtual void	initializeYourself (TimeStep *timeStepWhenICApply)
	Initialization according to state given by initial conditions. More...

virtual bool	isActivated (TimeStep *tStep)

virtual bool	isCast (TimeStep *tStep)

virtual void	initForNewStep ()
	Initializes receivers state to new time step. More...

virtual Element_Geometry_Type	giveGeometryType () const
	Returns the element geometry type. More...

virtual int	giveSpatialDimension ()
	Returns the element spatial dimension (1, 2, or 3). More...

virtual int	giveNumberOfBoundarySides ()

virtual int	giveDefaultIntegrationRule () const
	Returns id of default integration rule. More...

virtual IntegrationRule *	giveDefaultIntegrationRulePtr ()
	Access method for default integration rule. More...

int	giveNumberOfIntegrationRules ()

virtual IntegrationRule *	giveIntegrationRule (int i)

std::vector< std::unique_ptr< IntegrationRule > > &	giveIntegrationRulesArray ()

virtual int	testElementExtension (ElementExtension ext)
	Tests if the element implements required extension. More...

int	giveGlobalIPValue (FloatArray &answer, GaussPoint gp, InternalStateType type, TimeStep tStep)

virtual double	giveLengthInDir (const FloatArray &normalToCrackPlane)
	Default implementation returns length of element projection into specified direction. More...

virtual double	giveCharacteristicLength (const FloatArray &normalToCrackPlane)
	Returns the size of element in the given direction, in some cases adjusted (e.g. More...

double	giveCharacteristicLengthForPlaneElements (const FloatArray &normalToCrackPlane)
	Returns the size of element in the given direction if the direction is in the XY plane, otherwise gives the mean size defined as the square root of the element area. More...

double	giveCharacteristicLengthForAxisymmElements (const FloatArray &normalToCrackPlane)
	Returns the size of an axisymmetric element in the given direction if the direction is in the XY plane, otherwise gives the mean distance vrom the symmetry axis multiplied by pi. More...

virtual double	giveCharacteristicSize (GaussPoint *gp, FloatArray &normalToCrackPlane, ElementCharSizeMethod method)
	Returns characteristic element size for a given integration point and given direction. More...

virtual double	giveParentElSize () const
	Returns the size (length, area or volume depending on element type) of the parent element. More...

virtual int	computeGlobalCoordinates (FloatArray &answer, const FloatArray &lcoords)
	Computes the global coordinates from given element's local coordinates. More...

virtual bool	computeLocalCoordinates (FloatArray &answer, const FloatArray &gcoords)
	Computes the element local coordinates from given global coordinates. More...

virtual int	giveLocalCoordinateSystem (FloatMatrix &answer)
	Returns local coordinate system of receiver Required by material models with ortho- and anisotrophy. More...

virtual void	computeMidPlaneNormal (FloatArray &answer, const GaussPoint *gp)
	Computes mid-plane normal of receiver at integration point. More...

virtual int	adaptiveMap (Domain oldd, TimeStep tStep)
	Initializes the internal state variables stored in all IPs according to state in given domain. More...

virtual int	mapStateVariables (Domain &iOldDom, const TimeStep &iTStep)
	Maps the internal state variables stored in all IPs from the old domain to the new domain. More...

virtual int	adaptiveFinish (TimeStep *tStep)
	Finishes the mapping for given time step. More...

virtual void	updateLocalNumbering (EntityRenumberingFunctor &f)
	Local renumbering support. More...

template<class T >
void	ipEvaluator (T src, void(T::f)(GaussPoint *gp))
	Integration point evaluator, loops over receiver IP's and calls given function (passed as f parameter) on them. The IP is parameter to function f. More...

template<class T , class S >
void	ipEvaluator (T src, void(T::f)(GaussPoint *, S &), S &_val)
	Integration point evaluator, loops over receiver IP's and calls given function (passed as f parameter) on them. The IP is parameter to function f as well as additional array. More...

Public Member Functions inherited from oofem::FEMComponent
	FEMComponent (int n, Domain *d)
	Regular constructor, creates component with given number and belonging to given domain. More...

virtual	~FEMComponent ()
	Virtual destructor. More...

virtual const char *	giveInputRecordName () const =0

Domain *	giveDomain () const

virtual void	setDomain (Domain *d)
	Sets associated Domain. More...

int	giveNumber () const

void	setNumber (int num)
	Sets number of receiver. More...

virtual void	printYourself ()
	Prints receiver state on stdout. Useful for debugging. More...

virtual Interface *	giveInterface (InterfaceType t)
	Interface requesting service. More...

std::string	errorInfo (const char *func) const
	Returns string for prepending output (used by error reporting macros). More...

Protected Member Functions
virtual void	computeBodyLoadVectorAt (FloatArray &answer, Load load, TimeStep tStep, ValueModeType mode)
	Computes the load vector due to body load acting on receiver, at given time step. More...

virtual int	giveNumberOfIPForMassMtrxIntegration ()
	Return desired number of integration points for consistent mass matrix computation, if required. More...

void	condense (FloatMatrix stiff, FloatMatrix mass, FloatArray load, IntArray what)
	General service for condensation of stiffness and optionally load vector and mass or initial stress matrices of receiver. More...

virtual void	setupIRForMassMtrxIntegration (IntegrationRule &iRule)
	Setup Integration Rule Gauss Points for Mass Matrix integration. More...

Edge and surface load support services.
virtual void	computePointLoadVectorAt (FloatArray &answer, Load load, TimeStep tStep, ValueModeType mode, bool global=true)
	Computes point load vector contribution of receiver for given load (should has BoundaryLoad Base). More...

virtual void	giveEdgeDofMapping (IntArray &answer, int iEdge) const
	Assembles edge dof mapping mask, which provides mapping between edge local DOFs and "global" element DOFs. More...

virtual void	giveSurfaceDofMapping (IntArray &answer, int iSurf) const
	Assembles surface dof mapping mask, which provides mapping between surface local DOFs and "global" element DOFs. More...

virtual IntegrationRule *	GetSurfaceIntegrationRule (int order)

virtual double	computeEdgeVolumeAround (GaussPoint *gp, int iEdge)
	Computes volume related to integration point on local edge. More...

virtual double	computeSurfaceVolumeAround (GaussPoint *gp, int iSurf)
	Computes volume related to integration point on local surface. More...

virtual int	computeLoadGToLRotationMtrx (FloatMatrix &answer)
	Returns transformation matrix from global coordinate system to local element coordinate system for element load vector components. More...

virtual int	computeLoadLEToLRotationMatrix (FloatMatrix &answer, int iEdge, GaussPoint *gp)
	Returns transformation matrix from local edge c.s to element local coordinate system of load vector components. More...

virtual int	computeLoadLSToLRotationMatrix (FloatMatrix &answer, int iSurf, GaussPoint *gp)
	Returns transformation matrix from local surface c.s to element local coordinate system of load vector components. More...

Protected Member Functions inherited from oofem::Element
virtual void	computeGaussPoints ()
	Initializes the array of integration rules member variable. More...

Protected Attributes
std::unique_ptr< FloatArray >	initialDisplacements
	Initial displacement vector, describes the initial nodal displacements when element has been casted. More...

Protected Attributes inherited from oofem::Element
int	numberOfDofMans
	Number of dofmanagers. More...

IntArray	dofManArray
	Array containing dofmanager numbers. More...

int	material
	Number of associated material. More...

int	crossSection
	Number of associated cross section. More...

IntArray	bodyLoadArray
	Array containing indexes of loads (body loads and boundary loads are kept separately), that apply on receiver. More...

IntArray	boundaryLoadArray

std::vector< std::unique_ptr< IntegrationRule > >	integrationRulesArray
	List of integration rules of receiver (each integration rule contains associated integration points also). More...

FloatMatrix	elemLocalCS
	Transformation material matrix, used in orthotropic and anisotropic materials, global->local transformation. More...

int	activityTimeFunction
	Element activity time function. If defined, nonzero value indicates active receiver, zero value inactive element. More...

int	globalNumber
	In parallel mode, globalNumber contains globally unique DoFManager number. More...

int	numberOfGaussPoints
	Number of integration points as specified by nip. More...

elementParallelMode	parallel_mode
	Determines the parallel mode of the element. More...

IntArray	partitions
	List of partition sharing the shared element or remote partition containing remote element counterpart. More...

Protected Attributes inherited from oofem::FEMComponent
int	number
	Component number. More...

Domain *	domain
	Link to domain object, useful for communicating with other FEM components. More...

Friends
class	IDNLMaterial

class	TrabBoneNL3D

class	MisesMatNl

class	RankineMatNl

class	GradDpElement

Detailed Description

Abstract base class for all "structural" finite elements.

It declares common interface provided by all derived elements. The implementation of these services is partly left on derived classes, some general services are implemented here generally (But they can be overload by more efficient element implementation). The general implementation provided here is intended for both linear and nonlinear computations. At this level, only material model nonlinearities are taken into account. If particular element type will participate in geometrically nonlinear computations, it should be derived from derived NLStructuralElement class, which provide support for this cases.

The basic data of an element are the numbers of its 'numberOfNodes' nodes, stored in 'nodeArray', of its 'material', of its body loads (eg, the dead weight) stored in 'loadArray'. These data are obtained from the domain. The element contains logical reference to Volume object ( which stores material,geometrical characteristics, integration points, state of material and so on) The calculated data of an element are its 'massMatrix', its 'stiffnessMatrix' its 'locationArray'. Since the load vector is recalculated at every time step, it is not given the status of attribute.

Tasks:

Obtaining its basic data, the element reads in the data file the number of these objects, then obtains the data from the domain (methods 'giveNode', 'giveMaterial',etc).
Calculating its contribution to the problem : Calculating its mass matrix M, its stiffness matrix K, its load vector f, its location array. Calculating its contribution to the LHS and RHS of the linear system, using Static,Newmark,etc, formula. These contributions are usually combinations of M,K,f.
Performing end-of-step operations; Calculating the strains and stresses at its Gauss points.
Printing its output in the data file and updating itself.

Definition at line 95 of file structuralelement.h.

Constructor & Destructor Documentation

oofem::StructuralElement::StructuralElement	(	int	n,
		Domain *	d
	)

Constructor.

Creates structural element with given number, belonging to given domain.

Parameters

n	Element number.
d	Domain to which new material will belong.

Definition at line 67 of file structuralelement.C.

oofem::StructuralElement::~StructuralElement ( )

virtual

Destructor.

Definition at line 72 of file structuralelement.C.

References computeConstitutiveMatrixAt(), oofem::StructuralCrossSection::giveCharMaterialStiffnessMatrix(), and giveStructuralCrossSection().

Member Function Documentation

int oofem::StructuralElement::adaptiveUpdate ( TimeStep * tStep )

virtual

Updates the internal state variables stored in all IPs according to already mapped state.

Parameters

tStep Time step.

Returns: Nonzero if o.k, otherwise zero.

Reimplemented from oofem::Element.

Definition at line 1202 of file structuralelement.C.

References computeStrainVector(), giveStructuralCrossSection(), oofem::Element::integrationRulesArray, and oofem::MaterialModelMapperInterfaceType.

Referenced by computeInitialStressMatrix().

void oofem::StructuralElement::addNonlocalStiffnessContributions	(	SparseMtrx &	dest,
		const UnknownNumberingScheme &	s,
		TimeStep *	tStep
	)

virtual

Adds the "nonlocal" contribution to stiffness matrix, to account for nonlocality of material model.

Typically, this contribution is obtained by summing up mutual IP contributions.

Todo:: Take into account cross section model (slaves)

Definition at line 1180 of file structuralelement.C.

References oofem::Element::giveDefaultIntegrationRulePtr(), giveStructuralCrossSection(), oofem::Element::isActivated(), and oofem::NonlocalMaterialStiffnessInterfaceType.

Referenced by computeInitialStressMatrix().

int oofem::StructuralElement::checkConsistency ( )

virtual

Performs consistency check.

This method is called at startup for all elements in particular domain. This method is intended to check data compatibility. Particular element types should test if compatible material and crossSection both with required capabilities are specified. Derived classes should provide their own analysis specific tests. Some printed input if incompatibility is found should be provided (error or warning member functions). Method can be also used to initialize some variables, since this is invoked after all domain components are instanciated.

Returns: Zero value if check fail, otherwise nonzero.

Reimplemented from oofem::Element.

Reimplemented in oofem::NLStructuralElement, oofem::Shell7BaseXFEM, oofem::SpringElement, oofem::SolidShell, oofem::LineDistributedSpring, oofem::NodalSpringElement, oofem::LumpedMassElement, oofem::Shell7Base, and oofem::TrPlaneStress2dXFEM.

Definition at line 1007 of file structuralelement.C.

References oofem::CS_StructuralCapability, giveClassName(), oofem::Element::giveCrossSection(), and OOFEM_WARNING.

Referenced by oofem::LumpedMassElement::checkConsistency(), and computeInitialStressMatrix().

virtual void oofem::StructuralElement::computeBmatrixAt	(	GaussPoint *	gp,
		FloatMatrix &	answer,
		int	lowerIndx = `1`,
		int	upperIndx = `ALL_STRAINS`
	)

pure virtual

Computes the geometrical matrix of receiver in given integration point.

The product of this matrix (assembled at given integration point) and element displacement vector is element strain vector. If lowerIndx and upperIndx parameters are specified, answer is formed only for strains within this interval. This will affects the size of answer.

Parameters

gp	Integration point for which answer is computed.
answer	Geometric matrix of receiver.
lowerIndx	If specified, answer is formed only for strain with index equal and greater than lowerIndx. This parameter has default value 1 (answer is formed from first strain).
upperIndx	If specified, answer is formed only for strain with index less and equal than upperIndx. This parameter has default value ALL_STRAINS (answer is formed for all strains).

Implemented in oofem::Shell7Base, oofem::AbaqusUserElement, oofem::Beam3d, oofem::Beam2d, oofem::AxisymElement, oofem::TR_SHELL01, oofem::TR_SHELL02, oofem::Quad1MindlinShell3D, oofem::LIBeam3d2, oofem::PlaneStrainElement, oofem::Lattice2d, oofem::RerShell, oofem::SpringElement, oofem::LIBeam3dNL, oofem::LIBeam3dNL2, oofem::MITC4Shell, oofem::PlaneStressElement, oofem::Truss1d, oofem::Truss2d, oofem::NodalSpringElement, oofem::tet21ghostsolid, oofem::Truss3d, oofem::Quad1Mindlin, oofem::LIBeam3d, oofem::LIBeam2dNL, oofem::LumpedMassElement, oofem::PlaneStress2d, oofem::Quad1PlaneStrain, oofem::LIBeam2d, oofem::LineDistributedSpring, oofem::InterfaceElem1d, oofem::DKTPlate, oofem::Quad1PlateSubSoil, oofem::Tria1PlateSubSoil, oofem::Structural2DElement, oofem::InterfaceElem2dQuad, oofem::InterfaceElement3dTrLin, oofem::InterfaceElem2dLin, oofem::L4Axisymm, oofem::QDKTPlate, oofem::CCTPlate, oofem::Structural3DElement, oofem::QTruss1d, oofem::TrPlaneStress2dXFEM, oofem::QTrPlaneStress2dXFEM, oofem::Quad2PlateSubSoil, oofem::Q4Axisymm, oofem::Tr_Warp, oofem::CohesiveSurface3d, oofem::PlaneStress2dXfem, oofem::TrPlanestressRotAllman, oofem::HTSelement, oofem::TrPlaneStrRot, oofem::SolidShell, and oofem::LSpaceBB.

Referenced by oofem::PhaseFieldElement::computeBStress_u(), oofem::NLStructuralElement::computeInitialStressMatrix(), computeLoadLSToLRotationMatrix(), oofem::GradDpElement::computeLocalStrainVector(), oofem::NLStructuralElement::computeStiffnessMatrix(), computeStiffnessMatrix(), oofem::GradDpElement::computeStiffnessMatrix_ku(), oofem::PhaseFieldElement::computeStiffnessMatrix_ud(), oofem::GradDpElement::computeStiffnessMatrix_uk(), oofem::GradDpElement::computeStiffnessMatrix_uu(), oofem::PhaseFieldElement::computeStiffnessMatrix_uu(), oofem::NLStructuralElement::computeStiffnessMatrix_withIRulesAsSubcells(), computeStiffnessMatrix_withIRulesAsSubcells(), computeStrainVector(), oofem::GradDpElement::giveInternalForcesVector(), oofem::NLStructuralElement::giveInternalForcesVector(), giveInternalForcesVector(), oofem::PhaseFieldElement::giveInternalForcesVector_u(), oofem::NLStructuralElement::giveInternalForcesVector_withIRulesAsSubcells(), giveInternalForcesVector_withIRulesAsSubcells(), oofem::GradDpElement::giveLocalInternalForcesVector(), oofem::TrabBoneNL3D::giveLocalNonlocalStiffnessContribution(), oofem::MisesMatNl::giveLocalNonlocalStiffnessContribution(), oofem::RankineMatNl::giveLocalNonlocalStiffnessContribution(), oofem::IDNLMaterial::giveLocalNonlocalStiffnessContribution(), oofem::TrabBoneNL3D::giveRemoteNonlocalStiffnessContribution(), oofem::MisesMatNl::giveRemoteNonlocalStiffnessContribution(), oofem::RankineMatNl::giveRemoteNonlocalStiffnessContribution(), oofem::IDNLMaterial::giveRemoteNonlocalStiffnessContribution(), and oofem::LinearizedDilationForceAssembler::vectorFromElement().

void oofem::StructuralElement::computeBodyLoadVectorAt	(	FloatArray &	answer,
		Load *	load,
		TimeStep *	tStep,
		ValueModeType	mode
	)

protectedvirtual

Computes the load vector due to body load acting on receiver, at given time step.

Default implementation computes body load vector numerically as $l=\int_V N^{\mathrm{T}} f \rho\;\mathrm{d}V$ using default integration rule. Result is transformed to global c.s.

Parameters

answer	Computed load vector due to body load
load	Body load which contribution is computed.
tStep	Time step.
mode	determines the response mode

Reimplemented in oofem::Beam3d, oofem::Shell7Base, oofem::Beam2d, oofem::TR_SHELL01, oofem::TR_SHELL02, oofem::Quad1MindlinShell3D, oofem::LIBeam3d2, oofem::RerShell, oofem::LIBeam3dNL, oofem::LIBeam3dNL2, oofem::Quad1Mindlin, oofem::LIBeam3d, oofem::LIBeam2dNL, oofem::LIBeam2d, oofem::LineDistributedSpring, oofem::DKTPlate, oofem::QDKTPlate, oofem::Quad1PlateSubSoil, oofem::Tria1PlateSubSoil, oofem::CCTPlate3d, oofem::DKTPlate3d, oofem::TrPlanestressRotAllman3d, oofem::TrPlaneStrRot3d, oofem::CCTPlate, and oofem::TrPlaneStrRot.

Definition at line 259 of file structuralelement.C.

References oofem::FloatArray::add(), oofem::FloatArray::beTProductOf(), oofem::BodyLoadBGT, oofem::FloatArray::clear(), oofem::Load::computeComponentArrayAt(), computeLoadGToLRotationMtrx(), computeNmatrixAt(), oofem::Element::computeVolumeAround(), oofem::ForceLoadBVT, oofem::CrossSection::give(), oofem::GeneralBoundaryCondition::giveBCGeoType(), oofem::GeneralBoundaryCondition::giveBCValType(), oofem::Element::giveCrossSection(), oofem::Element::giveDefaultIntegrationRulePtr(), oofem::FloatArray::giveSize(), oofem::GaussPoint::giveSubPatchCoordinates(), OOFEM_ERROR, and oofem::FloatArray::rotatedWith().

Referenced by oofem::LIBeam2d::computeBodyLoadVectorAt(), oofem::LIBeam2dNL::computeBodyLoadVectorAt(), oofem::LIBeam3d::computeBodyLoadVectorAt(), oofem::LIBeam3dNL2::computeBodyLoadVectorAt(), oofem::LIBeam3dNL::computeBodyLoadVectorAt(), oofem::LIBeam3d2::computeBodyLoadVectorAt(), oofem::Beam2d::computeBodyLoadVectorAt(), oofem::Beam3d::computeBodyLoadVectorAt(), computeLoadVector(), oofem::BeamBaseElement::computeLocalForceLoadVector(), and giveClassName().

void oofem::StructuralElement::computeBoundaryEdgeLoadVector	(	FloatArray &	answer,
		BoundaryLoad *	load,
		int	edge,
		CharType	type,
		ValueModeType	mode,
		TimeStep *	tStep,
		bool	global = `true`
	)

virtual

Computes the contribution of the given load at the given boundary edge.

In general, the answer should include only relevant DOFs at the edge. The related is giveBoundaryLocationArray method, which should return corresponding code numbers..

Note: Elements which do not have an contribution should resize the vector to be empty.

Parameters

answer	Requested contribution of load (in Global c.s.).
load	Load to compute contribution from.
edge	Edge number.
type	Type of the contribution.
mode	Determines mode of answer.
tStep	Time step when answer is computed.
global	if true (default) then contribution is in global c.s., when false then contribution is in element local c.s.

Todo:: Make sure this part is correct.

Todo:: Support this...

Todo:: Change the load type to "BoundaryEdgeLoad" maybe?

Reimplemented from oofem::Element.

Reimplemented in oofem::Beam3d, oofem::Beam2d, oofem::Shell7BaseXFEM, oofem::TrPlanestressRotAllman, and oofem::Shell7Base.

Definition at line 183 of file structuralelement.C.

References oofem::FEInterpolation::boundaryEdgeLocal2Global(), oofem::FloatArray::clear(), computeEdgeNMatrix(), computeEdgeVolumeAround(), computeLoadGToLRotationMtrx(), computeLoadLEToLRotationMatrix(), oofem::BoundaryLoad::computeValueAt(), oofem::Load::CST_Global, oofem::Load::FT_Entity, oofem::BoundaryLoad::giveApproxOrder(), oofem::Element::giveBoundaryEdgeIntegrationRule(), oofem::BoundaryLoad::giveCoordSystMode(), oofem::Load::giveFormulationType(), oofem::Element::giveInterpolation(), oofem::GaussPoint::giveNaturalCoordinates(), OOFEM_ERROR, oofem::FloatArray::plusProduct(), and oofem::FloatArray::rotatedWith().

Referenced by oofem::BeamBaseElement::computeLocalForceLoadVector(), and giveClassName().

void oofem::StructuralElement::computeBoundarySurfaceLoadVector	(	FloatArray &	answer,
		BoundaryLoad *	load,
		int	boundary,
		CharType	type,
		ValueModeType	mode,
		TimeStep *	tStep,
		bool	global = `true`
	)

virtual

Computes the contribution of the given load at the given boundary surface in global coordinate system.

In general, the answer should include only relevant DOFs at the edge. The related is giveBoundaryLocationArray method, which should return corresponding code numbers.

Note: Elements which do not have an contribution should resize the vector to be empty.

Parameters

answer	Requested contribution of load.
load	Load to compute contribution from.
boundary	Boundary number.
type	Type of the contribution.
mode	Determines mode of answer.
tStep	Time step when answer is computed.
global	if true (default) then contribution is in global c.s., when false then contribution is in element local c.s.

Todo:: Make sure this part is correct.

Todo:: Support this...

Todo:: Some way to ask for the thickness at a global coordinate maybe?

Reimplemented from oofem::Element.

Reimplemented in oofem::tet21ghostsolid.

Definition at line 108 of file structuralelement.C.

References oofem::FEInterpolation::boundaryLocal2Global(), oofem::FloatArray::clear(), computeLoadGToLRotationMtrx(), computeSurfaceNMatrix(), computeSurfaceVolumeAround(), oofem::BoundaryLoad::computeValueAt(), oofem::Load::CST_Global, oofem::Load::FT_Entity, oofem::BoundaryLoad::giveApproxOrder(), oofem::Element::giveBoundarySurfaceIntegrationRule(), oofem::BoundaryLoad::giveCoordSystMode(), oofem::Load::giveFormulationType(), oofem::Element::giveInterpolation(), oofem::GaussPoint::giveNaturalCoordinates(), OOFEM_ERROR, oofem::FloatArray::plusProduct(), and oofem::FloatArray::rotatedWith().

Referenced by oofem::BeamBaseElement::computeLocalForceLoadVector(), and giveClassName().

void oofem::StructuralElement::computeConsistentMassMatrix	(	FloatMatrix &	answer,
		TimeStep *	tStep,
		double &	mass,
		const double *	ipDensity = `NULL`
	)

virtual

Computes consistent mass matrix of receiver using numerical integration over element volume.

Mass matrix is computed as $M = \int_V N^{\mathrm{T}} \rho N dV$ , where $ N $ is displacement approximation matrix. The number of necessary integration points is determined using this->giveNumberOfIPForMassMtrxIntegration service. Only selected degrees of freedom participate in integration of mass matrix. This is described using dof mass integration mask. This mask is obtained from this->giveMassMtrxIntegrationgMask service. The nonzero mask value at i-th position indicates that i-th element DOF participates in mass matrix computation. The result is in element local coordinate system.

Parameters

answer	Mass matrix.
tStep	Time step.
mass	Total mass of receiver.

Reimplemented in oofem::AbaqusUserElement, oofem::Beam3d, oofem::TrPlaneStress2dXFEM, oofem::QTrPlaneStress2dXFEM, oofem::PlaneStress2dXfem, oofem::Beam2d, oofem::LIBeam3dNL2, and oofem::LIBeam3dNL.

Definition at line 334 of file structuralelement.C.

References oofem::IntArray::at(), oofem::FloatMatrix::at(), computeNmatrixAt(), oofem::Element::computeNumberOfDofs(), oofem::Element::computeVolumeAround(), oofem::CrossSection::give(), oofem::Element::giveCrossSection(), giveMassMtrxIntegrationgMask(), oofem::FloatMatrix::giveNumberOfRows(), oofem::GaussPoint::giveSubPatchCoordinates(), oofem::Element::isActivated(), oofem::IntArray::isEmpty(), oofem::FloatMatrix::plusProductSymmUpper(), oofem::FloatMatrix::resize(), setupIRForMassMtrxIntegration(), oofem::FloatMatrix::symmetrized(), and oofem::FloatMatrix::zero().

Referenced by computeLumpedMassMatrix(), computeMassMatrix(), and oofem::LSPrimaryVariableMapper::mapPrimaryVariables().

virtual void oofem::StructuralElement::computeConstitutiveMatrixAt	(	FloatMatrix &	answer,
		MatResponseMode	rMode,
		GaussPoint *	gp,
		TimeStep *	tStep
	)

pure virtual

Computes constitutive matrix of receiver.

Default implementation uses element cross section giveCharMaterialStiffnessMatrix service.

Parameters

answer	Constitutive matrix.
rMode	Material response mode of answer.
gp	Integration point for which constitutive matrix is computed.
tStep	Time step.

Implemented in oofem::AbaqusUserElement, oofem::Beam3d, oofem::Beam2d, oofem::TR_SHELL01, oofem::TR_SHELL02, oofem::AxisymElement, oofem::Quad1MindlinShell3D, oofem::PlaneStrainElement, oofem::Lattice2d, oofem::RerShell, oofem::LIBeam3dNL2, oofem::SpringElement, oofem::MITC4Shell, oofem::PlaneStressElement, oofem::NodalSpringElement, oofem::Quad1Mindlin, oofem::LIBeam3d, oofem::LIBeam2d, oofem::LineDistributedSpring, oofem::DKTPlate, oofem::CohesiveSurface3d, oofem::Quad1PlateSubSoil, oofem::Tria1PlateSubSoil, oofem::Truss3d, oofem::LumpedMassElement, oofem::LIBeam3d2, oofem::InterfaceElem1d, oofem::QDKTPlate, oofem::LIBeam3dNL, oofem::CCTPlate, oofem::InterfaceElem2dQuad, oofem::InterfaceElement3dTrLin, oofem::Tr2Shell7, oofem::Truss1d, oofem::Truss2d, oofem::InterfaceElem2dLin, oofem::HTSelement, oofem::QTrPlaneStress2dXFEM, oofem::TrPlaneStress2dXFEM, oofem::Structural3DElement, oofem::Tr2Shell7XFEM, oofem::PlaneStress2dXfem, oofem::tet21ghostsolid, oofem::Tr_Warp, oofem::TrPlaneStrRot, oofem::LIBeam2dNL, oofem::QTruss1dGrad, and oofem::QTruss1d.

Referenced by oofem::NLStructuralElement::computeStiffnessMatrix(), computeStiffnessMatrix(), oofem::NLStructuralElement::computeStiffnessMatrix_withIRulesAsSubcells(), computeStiffnessMatrix_withIRulesAsSubcells(), giveClassName(), oofem::PlaneStressElement::giveMaterialMode(), oofem::PlaneStrainElement::giveMaterialMode(), oofem::AxisymElement::giveMaterialMode(), oofem::LinearizedDilationForceAssembler::vectorFromElement(), oofem::ZZErrorEstimatorInterface::ZZErrorEstimatorI_computeElementContributions(), and ~StructuralElement().

void oofem::StructuralElement::computeEdgeNMatrix	(	FloatMatrix &	answer,
		int	boundaryID,
		const FloatArray &	lcoords
	)

virtual

computes edge interpolation matrix

Reimplemented in oofem::MITC4Shell, and oofem::DKTPlate.

Definition at line 248 of file structuralelement.C.

References oofem::FloatMatrix::beNMatrixOf(), oofem::FEInterpolation::boundaryEdgeEvalN(), and oofem::Element::giveInterpolation().

Referenced by computeBoundaryEdgeLoadVector(), and giveClassName().

double oofem::StructuralElement::computeEdgeVolumeAround	(	GaussPoint *	gp,
		int	iEdge
	)

protectedvirtual

Computes volume related to integration point on local edge.

Parameters

gp	edge integration point
iEdge	edge number

Reimplemented in oofem::MITC4Shell, oofem::AxisymElement, oofem::Quad1MindlinShell3D, oofem::LIBeam3d2, oofem::DKTPlate, oofem::QDKTPlate, oofem::Truss2d, oofem::Quad1Mindlin, oofem::LIBeam3dNL, oofem::LIBeam3dNL2, oofem::Truss3d, oofem::Tr_Warp, oofem::LIBeam3d, oofem::CCTPlate, oofem::Structural2DElement, oofem::LIBeam2dNL, oofem::DKTPlate3d, oofem::LIBeam2d, and oofem::Structural3DElement.

Definition at line 238 of file structuralelement.C.

References oofem::FEInterpolation::boundaryEdgeGiveTransformationJacobian(), oofem::Element::giveInterpolation(), oofem::GaussPoint::giveNaturalCoordinates(), and oofem::GaussPoint::giveWeight().

Referenced by computeBoundaryEdgeLoadVector(), and GetSurfaceIntegrationRule().

void oofem::StructuralElement::computeField	(	ValueModeType	mode,
		TimeStep *	tStep,
		const FloatArray &	lcoords,
		FloatArray &	answer
	)

virtual

Computes the unknown vector interpolated at the specified local coordinates.

Used for exporting data and mapping fields.

See also: giveElementDofIDMask The unknown vector should match the element field as specified by the element dof IDs.

Parameters

mode	Mode (total, increment, etc) of the output
tStep	Time step to evaluate at
lcoords	Local coordinates to evaluate at
answer	Results

Reimplemented from oofem::Element.

Reimplemented in oofem::AbaqusUserElement, oofem::TrPlaneStress2dXFEM, oofem::QTrPlaneStress2dXFEM, oofem::MacroLSpace, and oofem::QTruss1dGrad.

Definition at line 573 of file structuralelement.C.

References oofem::FloatArray::beProductOf(), computeNmatrixAt(), and oofem::Element::computeVectorOf().

Referenced by computeInitialStressMatrix().

virtual void oofem::StructuralElement::computeInitialStressMatrix	(	FloatMatrix &	answer,
		TimeStep *	tStep
	)

inlinevirtual

Computes initial stress matrix for linear stability problem.

Default implementation is not provided. Please note, that initial stress matrix depends on normal forces of element, corresponding engineering model must take this into account.

Parameters

answer	Computed initial stress matrix.
tStep	Time step.

Reimplemented in oofem::NLStructuralElement, oofem::Beam3d, oofem::SpringElement, oofem::Beam2d, oofem::NodalSpringElement, oofem::LumpedMassElement, and oofem::LIBeam2dNL.

Definition at line 197 of file structuralelement.h.

References adaptiveUpdate(), addNonlocalStiffnessContributions(), checkConsistency(), computeField(), computeResultingIPEigenstrainAt(), computeResultingIPTemperatureAt(), computeStrainVector(), giveInputRecord(), giveInternalForcesVector(), giveInternalForcesVector_withIRulesAsSubcells(), giveIPValue(), giveNonlocalLocationArray(), initializeFrom(), OOFEM_ERROR, updateBeforeNonlocalAverage(), updateInternalState(), and updateYourself().

Referenced by giveCharacteristicMatrix().

virtual int oofem::StructuralElement::computeLoadGToLRotationMtrx ( FloatMatrix & answer )

inlineprotectedvirtual

Returns transformation matrix from global coordinate system to local element coordinate system for element load vector components.

If no transformation is necessary, answer is empty matrix (default);

Parameters

answer Transformation matrix.

Returns: Nonzero if transformation matrix is not empty matrix, zero otherwise.

Reimplemented in oofem::Beam3d, oofem::LIBeam3d2, oofem::LIBeam3dNL, oofem::LIBeam3dNL2, oofem::MITC4Shell, oofem::LIBeam3d, oofem::LIBeam2dNL, oofem::LIBeam2d, oofem::LinQuad3DPlaneStress, oofem::CCTPlate3d, oofem::DKTPlate3d, oofem::TrPlanestressRotAllman3d, and oofem::TrPlaneStrRot3d.

Definition at line 421 of file structuralelement.h.

References oofem::FloatMatrix::clear().

Referenced by oofem::QDKTPlate::computeBodyLoadVectorAt(), computeBodyLoadVectorAt(), oofem::TrPlanestressRotAllman::computeBoundaryEdgeLoadVector(), oofem::Beam2d::computeBoundaryEdgeLoadVector(), computeBoundaryEdgeLoadVector(), oofem::tet21ghostsolid::computeBoundarySurfaceLoadVector(), computeBoundarySurfaceLoadVector(), and computePointLoadVectorAt().

virtual int oofem::StructuralElement::computeLoadLEToLRotationMatrix	(	FloatMatrix &	answer,
		int	iEdge,
		GaussPoint *	gp
	)

inlineprotectedvirtual

Returns transformation matrix from local edge c.s to element local coordinate system of load vector components.

Necessary, because integration must be done in local coordinate system of entity (edge or surface). If no transformation is necessary, answer is empty matrix (default);

Parameters

answer	Computed rotation matrix.
iEdge	Edge number.
gp	Integration point (point, where transformation is computed, useful for curved edges).

Returns: Nonzero if transformation matrix is not empty matrix, zero otherwise.

Reimplemented in oofem::Quad1MindlinShell3D, oofem::LIBeam3d2, oofem::DKTPlate, oofem::QDKTPlate, oofem::Truss2d, oofem::Quad1Mindlin, oofem::LIBeam3dNL, oofem::LIBeam3dNL2, oofem::MITC4Shell, oofem::Truss3d, oofem::CCTPlate, oofem::LIBeam3d, oofem::Structural2DElement, oofem::LIBeam2dNL, oofem::DKTPlate3d, oofem::LIBeam2d, and oofem::Structural3DElement.

Definition at line 438 of file structuralelement.h.

References oofem::FloatMatrix::clear().

Referenced by computeBoundaryEdgeLoadVector().

virtual int oofem::StructuralElement::computeLoadLSToLRotationMatrix	(	FloatMatrix &	answer,
		int	iSurf,
		GaussPoint *	gp
	)

inlineprotectedvirtual

Returns transformation matrix from local surface c.s to element local coordinate system of load vector components.

Necessary, because integration must be done in local coordinate system of entity (edge or surface). If no transformation is necessary, answer is empty matrix (default);

Parameters

answer	Computed rotation matrix.
iSurf	Surface number.
gp	Integration point (point, where transformation is computed, useful for curved surfaces)

Returns: Nonzero if transformation matrix is not empty matrix, zero otherwise.

Reimplemented in oofem::DKTPlate, oofem::LSpace, oofem::Quad1PlateSubSoil, oofem::Tria1PlateSubSoil, oofem::DKTPlate3d, oofem::QDKTPlate, oofem::CCTPlate3d, oofem::Structural3DElement, oofem::TrPlaneStrRot3d, oofem::QSpace, and oofem::Q27Space.

Definition at line 452 of file structuralelement.h.

References ALL_STRAINS, oofem::FloatMatrix::clear(), computeBmatrixAt(), computeNmatrixAt(), computeStressVector(), condense(), giveNumberOfIPForMassMtrxIntegration(), and setupIRForMassMtrxIntegration().

void oofem::StructuralElement::computeLoadVector	(	FloatArray &	answer,
		BodyLoad *	load,
		CharType	type,
		ValueModeType	mode,
		TimeStep *	tStep
	)

virtual

Computes the contribution of the given body load (volumetric).

Parameters

answer	Requested contribution of load.
load	Load to compute contribution from.
type	Type of the contribution.
mode	Determines mode of answer.
tStep	Time step when answer is computed.

Todo:: This assumption of dead-weight loads needs to be lifted. We can have other body loads, such as

Reimplemented from oofem::Element.

Reimplemented in oofem::tet21ghostsolid.

Definition at line 89 of file structuralelement.C.

References oofem::FloatArray::clear(), computeBodyLoadVectorAt(), oofem::Element::computeLocalCoordinates(), computePointLoadVectorAt(), and oofem::PointLoad::giveCoordinates().

Referenced by giveClassName().

void oofem::StructuralElement::computeLumpedMassMatrix	(	FloatMatrix &	answer,
		TimeStep *	tStep
	)

virtual

Computes lumped mass matrix of receiver.

Default implementation returns lumped consistent mass matrix. Then returns lumped mass transformed into nodal coordinate system. The lumping procedure zeroes all off-diagonal members and zeroes also all diagonal members corresponding to non-displacement DOFs. Such diagonal matrix is then rescaled, to preserve the element mass. Requires the computeNmatrixAt and giveMassMtrxIntegrationgMask services to be implemented.

Parameters

answer	Lumped mass matrix.
tStep	Time step.

Reimplemented in oofem::Shell7Base, oofem::DKTPlate, oofem::CCTPlate, oofem::Quad1MindlinShell3D, oofem::Quad1Mindlin, oofem::Quad1PlateSubSoil, oofem::Tria1PlateSubSoil, oofem::SpringElement, oofem::LineDistributedSpring, oofem::LIBeam3d2, oofem::LIBeam3dNL2, oofem::NodalSpringElement, oofem::LIBeam3dNL, oofem::Truss2d, oofem::RerShell, oofem::LTRSpace, oofem::Truss1d, oofem::Truss3d, oofem::LumpedMassElement, oofem::InterfaceElem1d, oofem::LIBeam2d, oofem::LIBeam3d, and oofem::LIBeam2dNL.

Definition at line 410 of file structuralelement.C.

References oofem::IntArray::at(), oofem::FloatMatrix::at(), computeConsistentMassMatrix(), oofem::Element::computeNumberOfDofs(), oofem::Element::giveDofManDofIDMask(), oofem::Element::giveNumberOfDofManagers(), oofem::FloatMatrix::giveNumberOfRows(), oofem::IntArray::giveSize(), oofem::Element::isActivated(), OOFEM_ERROR, oofem::FloatMatrix::resize(), oofem::FloatMatrix::times(), and oofem::FloatMatrix::zero().

Referenced by giveCharacteristicMatrix(), and giveCharacteristicVector().

void oofem::StructuralElement::computeMassMatrix	(	FloatMatrix &	answer,
		TimeStep *	tStep
	)

virtual

Computes mass matrix of receiver.

Default implementation returns consistent mass matrix and uses numerical integration. Returns result of this->computeConsistentMassMatrix service, transformed into nodal coordinate system. Requires the computeNmatrixAt and giveMassMtrxIntegrationgMask services to be implemented.

Parameters

answer	Mass matrix.
tStep	Time step.

Reimplemented in oofem::Shell7Base, oofem::TR_SHELL01, oofem::TR_SHELL02, oofem::DKTPlate, oofem::CCTPlate, oofem::Quad1MindlinShell3D, oofem::Quad1Mindlin, oofem::Quad1PlateSubSoil, oofem::Tria1PlateSubSoil, oofem::SpringElement, oofem::LineDistributedSpring, oofem::LIBeam3d2, oofem::NodalSpringElement, oofem::Truss2d, oofem::RerShell, oofem::Truss1d, oofem::Truss3d, oofem::LumpedMassElement, oofem::InterfaceElem1d, oofem::LIBeam2d, oofem::LIBeam3d, and oofem::LIBeam2dNL.

Definition at line 401 of file structuralelement.C.

References computeConsistentMassMatrix().

Referenced by giveCharacteristicMatrix().

void oofem::StructuralElement::computeNmatrixAt	(	const FloatArray &	iLocCoord,
		FloatMatrix &	answer
	)

virtual

Computes interpolation matrix for element unknowns.

The order and meaning of unknowns is element dependent.

Parameters

iLocCoord	Local coordinates.
answer	Interpolation matrix evaluated at gp.

Reimplemented in oofem::Shell7Base, oofem::Beam3d, oofem::Beam2d, oofem::TR_SHELL01, oofem::TR_SHELL02, oofem::LIBeam3d2, oofem::SpringElement, oofem::RerShell, oofem::LIBeam3dNL, oofem::LIBeam3dNL2, oofem::Truss1d, oofem::Truss2d, oofem::MITC4Shell, oofem::NodalSpringElement, oofem::LatticeStructuralElement, oofem::Truss3d, oofem::LIBeam2dNL, oofem::LIBeam3d, oofem::LumpedMassElement, oofem::LIBeam2d, oofem::InterfaceElem1d, oofem::DKTPlate, oofem::InterfaceElem2dQuad, oofem::InterfaceElement3dTrLin, oofem::InterfaceElem2dLin, oofem::QDKTPlate, oofem::CCTPlate, oofem::CohesiveSurface3d, oofem::TrPlaneStress2dXFEM, oofem::QTrPlaneStress2dXFEM, oofem::Tr_Warp, oofem::TrPlanestressRotAllman, oofem::PlaneStress2dXfem, oofem::HTSelement, and oofem::TrPlaneStrRot.

Definition at line 1024 of file structuralelement.C.

References oofem::FloatMatrix::beNMatrixOf(), oofem::FEInterpolation::evalN(), oofem::Element::giveInterpolation(), oofem::Element::giveNumberOfDofManagers(), oofem::Element::giveSpatialDimension(), N, oofem::FloatMatrix::resize(), and oofem::FloatMatrix::zero().

Referenced by computeBodyLoadVectorAt(), computeConsistentMassMatrix(), computeField(), computeLoadLSToLRotationMatrix(), computePointLoadVectorAt(), oofem::FreeWarping::computeResultAtCenterOfGravity(), oofem::Quad1PlateSubSoil::computeSurfaceNMatrixAt(), oofem::Tria1PlateSubSoil::computeSurfaceNMatrixAt(), giveIPValue(), oofem::Quad1PlaneStrain::HuertaErrorEstimatorI_computeNmatrixAt(), oofem::PlaneStress2d::HuertaErrorEstimatorI_computeNmatrixAt(), oofem::TrPlaneStrain::HuertaErrorEstimatorI_computeNmatrixAt(), oofem::LSpace::HuertaErrorEstimatorI_computeNmatrixAt(), oofem::LTRSpace::HuertaErrorEstimatorI_computeNmatrixAt(), oofem::TrPlaneStress2d::HuertaErrorEstimatorI_computeNmatrixAt(), oofem::LSPrimaryVariableMapper::mapPrimaryVariables(), and oofem::XfemStructuralElementInterface::XfemElementInterface_computeConsistentMassMatrix().

void oofem::StructuralElement::computePointLoadVectorAt	(	FloatArray &	answer,
		Load *	load,
		TimeStep *	tStep,
		ValueModeType	mode,
		bool	global = `true`
	)

protectedvirtual

Computes point load vector contribution of receiver for given load (should has BoundaryLoad Base).

Parameters

answer	Computed load vector.
load	Point load which contribution is computed.
tStep	Time step.
mode	determines response mode

Definition at line 298 of file structuralelement.C.

References oofem::FloatArray::beTProductOf(), computeLoadGToLRotationMtrx(), oofem::Element::computeLocalCoordinates(), computeNmatrixAt(), oofem::PointLoad::computeValueAt(), oofem::Load::CST_Global, oofem::PointLoad::giveCoordinates(), oofem::PointLoad::giveCoordSystMode(), OOFEM_WARNING, and oofem::FloatArray::rotatedWith().

Referenced by computeLoadVector(), oofem::BeamBaseElement::computeLocalForceLoadVector(), and giveClassName().

void oofem::StructuralElement::computeResultingIPEigenstrainAt	(	FloatArray &	answer,
		TimeStep *	tStep,
		GaussPoint *	gp,
		ValueModeType	mode
	)

virtual

Computes at given time the resulting eigenstrain component array.

This is summation of all eigenstrains imposed on the element.

Parameters

answer	Resulting eigenstrain components of receiver.
tStep	Time step.
gp	Integration point.
mode	Determines response mode.

Definition at line 522 of file structuralelement.C.

References oofem::FloatArray::add(), oofem::IntArray::at(), oofem::Element::bodyLoadArray, oofem::FloatArray::clear(), oofem::Element::computeGlobalCoordinates(), oofem::Load::computeValueAt(), oofem::IntArray::contains(), oofem::FEMComponent::domain, oofem::EigenstrainBVT, oofem::Domain::giveBc(), oofem::GeneralBoundaryCondition::giveBCValType(), oofem::Element::giveBodyLoadArray(), oofem::Domain::giveLoad(), oofem::GaussPoint::giveNaturalCoordinates(), oofem::Domain::giveNumberOfBoundaryConditions(), oofem::Domain::giveSet(), oofem::GeneralBoundaryCondition::giveSetNumber(), oofem::IntArray::giveSize(), oofem::GeneralBoundaryCondition::isImposed(), and OOFEM_ERROR.

Referenced by computeInitialStressMatrix(), oofem::StructuralMaterial::computeStressIndependentStrainVector(), oofem::StructuralMaterial::computeStressIndependentStrainVector_3d(), and oofem::StructuralMaterial::giveIPValue().

void oofem::StructuralElement::computeResultingIPTemperatureAt	(	FloatArray &	answer,
		TimeStep *	tStep,
		GaussPoint *	gp,
		ValueModeType	mode
	)

virtual

Computes at given time (tStep) the the resulting temperature component array.

This is summation of all temperature load components of receiver.

Parameters

answer	Resulting temperature components of receiver.
tStep	Time step.
gp	Integration point.
mode	Determines response mode.

Definition at line 470 of file structuralelement.C.

References oofem::FloatArray::add(), oofem::IntArray::at(), oofem::Element::bodyLoadArray, oofem::FloatArray::clear(), oofem::Element::computeGlobalCoordinates(), oofem::Load::computeValueAt(), oofem::IntArray::contains(), oofem::FEMComponent::domain, oofem::Domain::giveBc(), oofem::GeneralBoundaryCondition::giveBCValType(), oofem::Element::giveBodyLoadArray(), oofem::Domain::giveLoad(), oofem::GaussPoint::giveNaturalCoordinates(), oofem::Domain::giveNumberOfBoundaryConditions(), oofem::Domain::giveSet(), oofem::GeneralBoundaryCondition::giveSetNumber(), oofem::IntArray::giveSize(), oofem::GeneralBoundaryCondition::isImposed(), OOFEM_ERROR, and oofem::TemperatureBVT.

Referenced by oofem::Eurocode2CreepMaterial::computeEquivalentMaturity(), computeInitialStressMatrix(), oofem::StructuralMaterial::computeStressIndependentStrainVector(), oofem::LatticeDamage2d::computeStressIndependentStrainVector(), oofem::StructuralMaterial::computeStressIndependentStrainVector_3d(), and oofem::SimpleCrossSection::giveTemperatureVector().

void oofem::StructuralElement::computeStiffnessMatrix	(	FloatMatrix &	answer,
		MatResponseMode	rMode,
		TimeStep *	tStep
	)

virtual

Computes numerically stiffness matrix of receiver.

Default implementation computes element stiffness using $K=\int_v B^{\mathrm{T}} D B \mathrm{d}V$ formulae, where $ B $ is element geometric matrix and $ D $ is material stiffness matrix. No geometrical nonlinearity is taken into account. NUmerical integration procedure uses integrationRulesArray for numerical integration. Support for reduced or selected integration is implemented. The individual integration rules are assumed to correspond to different terms from which the overall matrix is assembled.

If there is one integration rule, the full integration of all coefficients is performed. Otherwise, integration is performed using following rules. Each integration rule can specify start and end strain index of strain vector components for which is valid. It is necessary to ensure that these start and end indexes, dividing geometrical matrix into blocks, are not overlapping and that each strain component is included.

Then stiffness matrix is obtained as summation of integrals $I_{ij}=\int_v B^{\mathrm{T}}_i D_{ij} B_j \mathrm{d}V$ where $ B_i $ is i-th block of geometrical matrix and $D_{ij}$ is corresponding constitutive sub-matrix. The geometrical matrix is obtained using computeBmatrixAt service and the constitutive matrix is obtained using computeConstitutiveMatrixAt service. The $I_{ij}$ integral is evaluated using such integration rule, which is valid for i-th or j-th block and has smaller number of integration points.

For higher numerical performance, only one half of stiffness matrix is computed and answer is then symmetrized. Therefore, if element matrix will be generally nonsymmetric, one must specialize this method. Finally, the result is transformed into global coordinate system (or nodal coordinate system, if it is defined).

Parameters

answer	Computed stiffness matrix (symmetric).
rMode	Response mode.
tStep	Time step.

Reimplemented in oofem::Shell7Base, oofem::AbaqusUserElement, oofem::TR_SHELL01, oofem::TR_SHELL02, oofem::NLStructuralElement, oofem::Lattice2d, oofem::MITC4Shell, oofem::Beam3d, oofem::LIBeam3dNL, oofem::Quad1MindlinShell3D, oofem::LIBeam3dNL2, oofem::TrPlanestressRotAllman, oofem::Shell7BaseXFEM, oofem::SpringElement, oofem::Beam2d, oofem::LIBeam3d2, oofem::QTrPlaneStress2dXFEM, oofem::TrPlaneStress2dXFEM, oofem::NodalSpringElement, oofem::PlaneStress2dXfem, oofem::QTRSpaceGrad, oofem::QWedgeGrad, oofem::tet21ghostsolid, oofem::SolidShell, oofem::QTruss1dGrad, oofem::HTSelement, oofem::MacroLSpace, oofem::LumpedMassElement, oofem::LIBeam3d, oofem::PlaneStressPhF2d, oofem::QPlaneStressPhF2d, oofem::LIBeam2d, oofem::QPlaneStrainGrad, oofem::QTrPlaneStressGrad, oofem::CoupledFieldsElement, oofem::QPlaneStressGrad, and oofem::QTrPlaneStrainGrad.

Definition at line 583 of file structuralelement.C.

References oofem::FloatMatrix::beProductOf(), oofem::FloatMatrix::beSubMatrixOf(), oofem::FloatMatrix::clear(), computeBmatrixAt(), computeConstitutiveMatrixAt(), oofem::Element::computeVolumeAround(), oofem::Element::giveCrossSection(), oofem::Element::giveDefaultIntegrationRulePtr(), oofem::Element::integrationRulesArray, oofem::Element::isActivated(), oofem::CrossSection::isCharacteristicMtrxSymmetric(), oofem::FloatMatrix::plusProductSymmUpper(), oofem::FloatMatrix::plusProductUnsym(), and oofem::FloatMatrix::symmetrized().

Referenced by oofem::LIBeam2d::computeStiffnessMatrix(), oofem::LIBeam3d::computeStiffnessMatrix(), oofem::LIBeam3d2::computeStiffnessMatrix(), giveCharacteristicMatrix(), oofem::LineDistributedSpring::giveInternalForcesVector(), and giveMassMtrxIntegrationgMask().

void oofem::StructuralElement::computeStiffnessMatrix_withIRulesAsSubcells	(	FloatMatrix &	answer,
		MatResponseMode	rMode,
		TimeStep *	tStep
	)

void oofem::StructuralElement::computeStrainVector	(	FloatArray &	answer,
		GaussPoint *	gp,
		TimeStep *	tStep
	)

virtual

Compute strain vector of receiver evaluated at given integration point at given time step from element displacement vector.

The nature of strain vector depends on the element type.

Parameters

answer	Requested strain vector.
gp	Integration point where to calculate the strain.
tStep	Time step.

Reimplemented in oofem::Quad1MindlinShell3D, oofem::LIBeam3d2, oofem::HTSelement, oofem::LIBeam3dNL2, and oofem::LIBeam3dNL.

Definition at line 699 of file structuralelement.C.

References oofem::FloatArray::beProductOf(), computeBmatrixAt(), computeStressVector(), oofem::Element::computeVectorOf(), oofem::GaussPoint::giveMaterialMode(), oofem::StructuralCrossSection::giveRealStresses(), oofem::StructuralMaterial::giveSizeOfVoigtSymVector(), giveStructuralCrossSection(), initialDisplacements, oofem::Element::isActivated(), oofem::FloatArray::resize(), oofem::FloatArray::subtract(), and oofem::FloatArray::zero().

Referenced by adaptiveUpdate(), computeInitialStressMatrix(), oofem::DKTPlate::computeVertexBendingMoments(), oofem::RerShell::giveCharacteristicTensor(), oofem::MITC4Shell::giveCharacteristicTensor(), oofem::NLStructuralElement::giveInternalForcesVector_withIRulesAsSubcells(), oofem::MITC4Shell::giveMidplaneIPValue(), oofem::LineDistributedSpring::printOutputAt(), updateBeforeNonlocalAverage(), and updateInternalState().

virtual void oofem::StructuralElement::computeStressVector	(	FloatArray &	answer,
		const FloatArray &	strain,
		GaussPoint *	gp,
		TimeStep *	tStep
	)

pure virtual

Computes the stress vector of receiver at given integration point, at time step tStep.

The nature of these stresses depends on the element's type.

Parameters

answer	Stress vector.
strain	Strain vector.
gp	Integration point.
tStep	Time step.

Implemented in oofem::AbaqusUserElement, oofem::Beam3d, oofem::Beam2d, oofem::TR_SHELL01, oofem::TR_SHELL02, oofem::AxisymElement, oofem::Quad1MindlinShell3D, oofem::PlaneStrainElement, oofem::Lattice2d, oofem::RerShell, oofem::LIBeam3dNL2, oofem::MITC4Shell, oofem::SpringElement, oofem::PlaneStressElement, oofem::LIBeam3d, oofem::NodalSpringElement, oofem::Quad1Mindlin, oofem::LIBeam2d, oofem::LineDistributedSpring, oofem::DKTPlate, oofem::CohesiveSurface3d, oofem::Quad1PlateSubSoil, oofem::Tria1PlateSubSoil, oofem::Truss3d, oofem::LIBeam3d2, oofem::LumpedMassElement, oofem::InterfaceElem1d, oofem::QDKTPlate, oofem::LIBeam3dNL, oofem::CCTPlate, oofem::InterfaceElem2dQuad, oofem::InterfaceElement3dTrLin, oofem::Truss1d, oofem::Truss2d, oofem::InterfaceElem2dLin, oofem::QTrPlaneStress2dXFEM, oofem::TrPlaneStress2dXFEM, oofem::Tr2Shell7, oofem::HTSelement, oofem::Structural3DElement, oofem::PlaneStress2dXfem, oofem::Tr2Shell7XFEM, oofem::tet21ghostsolid, oofem::Tr_Warp, oofem::TrPlaneStrRot, oofem::LIBeam2dNL, and oofem::QTruss1d.

Referenced by oofem::PhaseFieldElement::computeBStress_u(), computeLoadLSToLRotationMatrix(), computeStrainVector(), oofem::NLStructuralElement::giveInternalForcesVector(), giveInternalForcesVector(), oofem::NLStructuralElement::giveInternalForcesVector_withIRulesAsSubcells(), giveInternalForcesVector_withIRulesAsSubcells(), oofem::PlaneStressElement::giveMaterialMode(), oofem::PlaneStrainElement::giveMaterialMode(), oofem::AxisymElement::giveMaterialMode(), and updateInternalState().

void oofem::StructuralElement::computeSurfaceNMatrix	(	FloatMatrix &	answer,
		int	boundaryID,
		const FloatArray &	lcoords
	)

virtual

Computes surface interpolation matrix.

Interpolation matrix provide way, how to compute local surface unknowns (nonzero element unknowns on surface) at any integration point of surface, based on local unknowns in surface nodes. Local coordinate system of surface edge and element surface numbering is element dependent. The integration point is specified using two-dimensional iso coordinates, or using area coordinates for triangular surface.

Parameters

answer	Interpolation matrix of surface.
boundaryID	Surface number.
local	coordinates

Reimplemented in oofem::MITC4Shell, oofem::CCTPlate, and oofem::QDKTPlate.

Definition at line 175 of file structuralelement.C.

References oofem::FloatMatrix::beNMatrixOf(), oofem::FEInterpolation::boundarySurfaceEvalN(), and oofem::Element::giveInterpolation().

Referenced by computeBoundarySurfaceLoadVector(), and giveClassName().

double oofem::StructuralElement::computeSurfaceVolumeAround	(	GaussPoint *	gp,
		int	iSurf
	)

protectedvirtual

Computes volume related to integration point on local surface.

Parameters

gp	Surface integration point.
iSurf	Surface number.

Reimplemented in oofem::MITC4Shell, oofem::DKTPlate, oofem::Quad1PlateSubSoil, oofem::Tria1PlateSubSoil, oofem::DKTPlate3d, oofem::QDKTPlate, oofem::CCTPlate3d, oofem::Structural3DElement, and oofem::TrPlaneStrRot3d.

Definition at line 165 of file structuralelement.C.

References oofem::FEInterpolation::boundarySurfaceGiveTransformationJacobian(), oofem::Element::giveInterpolation(), oofem::GaussPoint::giveNaturalCoordinates(), and oofem::GaussPoint::giveWeight().

Referenced by computeBoundarySurfaceLoadVector(), and GetSurfaceIntegrationRule().

void oofem::StructuralElement::condense	(	FloatMatrix *	stiff,
		FloatMatrix *	mass,
		FloatArray *	load,
		IntArray *	what
	)

protected

General service for condensation of stiffness and optionally load vector and mass or initial stress matrices of receiver.

Parameters

stiff	Stiffness matrix to be condensed. Must be specified.
mass	Mass or initial stress matrix. If parameter is NULL, only stiffness and/or load is condensed.
load	Load vector of receiver. If specified then it is condensed. If no load vector condensation is necessary set parameter to NULL pointer.
what	Integer array. If at i-th position is nonzero, then i-th component is condensed.

Definition at line 1039 of file structuralelement.C.

References oofem::IntArray::at(), oofem::FloatArray::at(), oofem::FloatMatrix::at(), oofem::FloatMatrix::giveNumberOfRows(), oofem::IntArray::giveSize(), oofem::FloatArray::giveSize(), oofem::FloatMatrix::isSquare(), OOFEM_ERROR, and oofem::FloatArray::resize().

Referenced by computeLoadLSToLRotationMatrix().

void oofem::StructuralElement::createMaterialStatus ( )

virtual

Definition at line 1242 of file structuralelement.C.

References oofem::StructuralCrossSection::createMaterialStatus(), giveStructuralCrossSection(), and oofem::Element::integrationRulesArray.

Referenced by giveClassName().

virtual IntegrationRule* oofem::StructuralElement::GetSurfaceIntegrationRule ( int order )

inlineprotectedvirtual

Todo:: Old, only kept until all el have changed to the above

Reimplemented in oofem::MITC4Shell, oofem::DKTPlate, oofem::LSpace, oofem::LTRSpace, oofem::Quad1PlateSubSoil, oofem::Tria1PlateSubSoil, oofem::DKTPlate3d, oofem::QDKTPlate, oofem::CCTPlate3d, oofem::TrPlaneStrRot3d, oofem::QSpace, and oofem::Q27Space.

Definition at line 399 of file structuralelement.h.

References computeEdgeVolumeAround(), and computeSurfaceVolumeAround().

void oofem::StructuralElement::giveCharacteristicMatrix	(	FloatMatrix &	answer,
		CharType	type,
		TimeStep *	tStep
	)

virtual

Computes characteristic matrix of receiver of requested type in given time step.

Parameters

answer	Requested characteristic matrix (stiffness, tangent, ...). If element has no capability to compute requested type of characteristic matrix error function is invoked.
type	Id of characteristic component requested.
tStep	Time step when answer is computed.

Reimplemented from oofem::Element.

Reimplemented in oofem::TR_SHELL01, and oofem::TR_SHELL02.

Definition at line 884 of file structuralelement.C.

References oofem::__CharTypeToString(), computeInitialStressMatrix(), computeLumpedMassMatrix(), computeMassMatrix(), computeStiffnessMatrix(), and OOFEM_ERROR.

void oofem::StructuralElement::giveCharacteristicVector	(	FloatArray &	answer,
		CharType	type,
		ValueModeType	mode,
		TimeStep *	tStep
	)

virtual

Computes characteristic vector of receiver of requested type in given time step.

If element has no capability to compute requested type of characteristic vector error function is invoked.

Parameters

answer	Requested characteristic vector.
type	Id of characteristic component requested.
mode	Determines mode of answer.
tStep	Time step when answer is computed.

Reimplemented from oofem::Element.

Reimplemented in oofem::TR_SHELL01, oofem::TR_SHELL02, and oofem::Tr_Warp.

Definition at line 910 of file structuralelement.C.

References oofem::__CharTypeToString(), computeLumpedMassMatrix(), giveInternalForcesVector(), oofem::FloatMatrix::giveNumberOfColumns(), OOFEM_ERROR, and oofem::FloatArray::resize().

Referenced by oofem::Tr_Warp::giveCharacteristicVector().

virtual const char* oofem::StructuralElement::giveClassName ( ) const

inlinevirtual

Returns: Class name of the receiver.

Reimplemented from oofem::Element.

Reimplemented in oofem::NLStructuralElement, oofem::AbaqusUserElement, oofem::Shell7BaseXFEM, oofem::Beam3d, oofem::MITC4Shell, oofem::Beam2d, oofem::DKTPlate, oofem::QDKTPlate, oofem::RerShell, oofem::DKTPlate3d, oofem::SpringElement, oofem::CCTPlate3d, oofem::LIBeam3d2, oofem::CCTPlate, oofem::Lattice2d, oofem::TrPlaneStrRot3d, oofem::Quad1MindlinShell3D, oofem::Tr2Shell7, oofem::NodalSpringElement, oofem::Truss2d, oofem::LinQuad3DPlaneStress, oofem::TrPlaneStrain, oofem::Truss1d, oofem::Tr2Shell7XFEM, oofem::LSpace, oofem::Truss3d, oofem::Quad1PlaneStrain, oofem::PlaneStress2d, oofem::LIBeam3dNL, oofem::LumpedMassElement, oofem::TrPlanestressRotAllman3d, oofem::Axisymm3d, oofem::tet21ghostsolid, oofem::LIBeam3dNL2, oofem::InterfaceElem1d, oofem::TrPlaneStress2d, oofem::QTRSpace, oofem::LIBeam3d, oofem::TrPlanestressRotAllman, oofem::TR_SHELL01, oofem::LIBeam2d, oofem::TR_SHELL02, oofem::Quad1Mindlin, oofem::LIBeam2dNL, oofem::InterfaceElem2dQuad, oofem::Shell7Base, oofem::QSpace, oofem::QWedge, oofem::CohesiveSurface3d, oofem::SolidShell, oofem::InterfaceElem2dLin, oofem::TrPlaneStrRot, oofem::LWedge, oofem::InterfaceElement3dTrLin, oofem::QTrPlaneStrain, oofem::LTRSpace, oofem::Q27Space, oofem::BasicElement, oofem::LineDistributedSpring, oofem::QTrPlaneStress2d, oofem::Quad1PlateSubSoil, oofem::Tria1PlateSubSoil, oofem::QTruss1d, oofem::TrPlaneStress2dXFEM, oofem::Q4Axisymm, oofem::QTrPlaneStress2dXFEM, oofem::BasicElementQuad, oofem::Quad2PlateSubSoil, oofem::L4Axisymm, oofem::MacroLSpace, oofem::HTSelement, oofem::Tr_Warp, oofem::QSpaceGrad, oofem::PlaneStressPhF2d, oofem::PlaneStress2dXfem, oofem::QPlaneStress2d, oofem::QTRSpaceGrad, oofem::QWedgeGrad, oofem::Q9PlaneStress2d, oofem::QPlaneStressPhF2d, oofem::QPlaneStrain, oofem::QTruss1dGrad, oofem::QPlaneStrainGrad, oofem::QPlaneStressGrad, oofem::QTrPlaneStressGrad, oofem::QTrPlaneStrainGrad, and oofem::LSpaceBB.

Definition at line 295 of file structuralelement.h.

References computeBodyLoadVectorAt(), computeBoundaryEdgeLoadVector(), computeBoundarySurfaceLoadVector(), computeConstitutiveMatrixAt(), computeEdgeNMatrix(), computeLoadVector(), computePointLoadVectorAt(), computeSurfaceNMatrix(), createMaterialStatus(), gc, giveInternalStateAtNode(), giveStructuralCrossSection(), showExtendedSparseMtrxStructure(), and showSparseMtrxStructure().

Referenced by checkConsistency().

virtual void oofem::StructuralElement::giveEdgeDofMapping	(	IntArray &	answer,
		int	iEdge
	)		const

inlineprotectedvirtual

Assembles edge dof mapping mask, which provides mapping between edge local DOFs and "global" element DOFs.

Mask can be imagined as local edge code numbers used to localize local edge DOFs to element DOFs.

Parameters

answer	Edge DOF mapping.
iEdge	Edge number.

Reimplemented in oofem::MITC4Shell, oofem::Quad1MindlinShell3D, oofem::Shell7Base, oofem::LIBeam3d2, oofem::DKTPlate, oofem::QDKTPlate, oofem::Truss2d, oofem::Quad1Mindlin, oofem::LIBeam3dNL, oofem::LIBeam3dNL2, oofem::TrPlanestressRotAllman, oofem::Truss3d, oofem::LIBeam3d, oofem::Structural2DElement, oofem::LIBeam2dNL, oofem::CCTPlate, oofem::DKTPlate3d, oofem::LIBeam2d, oofem::Structural3DElement, oofem::Tr2Shell7, oofem::Tr2Shell7XFEM, and oofem::Tr_Warp.

Definition at line 388 of file structuralelement.h.

References oofem::IntArray::clear().

void oofem::StructuralElement::giveInputRecord ( DynamicInputRecord & input )

virtual

Setups the input record string of receiver.

Parameters

input Dynamic input record to be filled by receiver.

TODO: Should initialDisplacements be stored? /ES

Reimplemented from oofem::Element.

Reimplemented in oofem::NLStructuralElement, oofem::AbaqusUserElement, oofem::TrPlaneStress2dXFEM, oofem::PlaneStress2dXfem, and oofem::QTrPlaneStress2dXFEM.

Definition at line 1229 of file structuralelement.C.

References oofem::Element::giveInputRecord().

Referenced by computeInitialStressMatrix(), oofem::AbaqusUserElement::giveInputRecord(), and oofem::NLStructuralElement::giveInputRecord().

void oofem::StructuralElement::giveInternalForcesVector	(	FloatArray &	answer,
		TimeStep *	tStep,
		int	useUpdatedGpRecord = `0`
	)

virtual

Returns equivalent nodal forces vectors.

Useful for nonlinear analysis. Default implementation computes result as $F=\int_v B^{\mathrm{T}} \sigma \mathrm{d}V$ , where $\sigma$ is the real element stress vector obtained using computeStressVector service (if useUpdatedGpRecord=0) or (if useUpdatedGpRecord=1) from integration point status. The geometric matrix is obtained using computeBmatrixAt service. Integration is performed using default integration rule, which should produce always valid results, assuming that strains used for computation of stresses are valid.

Parameters

answer	Internal nodal forces vector.
tStep	Time step.
useUpdatedGpRecord	If equal to zero, the stresses in integration points are computed (slow but safe), else if nonzero the stresses are taken directly from integration point status (should be derived from StructuralMaterialStatus) (fast, but engineering model must ensure valid status data in each integration point).

Reimplemented in oofem::Shell7Base, oofem::NLStructuralElement, oofem::AbaqusUserElement, oofem::TR_SHELL01, oofem::TR_SHELL02, oofem::Beam3d, oofem::LIBeam3dNL, oofem::MITC4Shell, oofem::Quad1MindlinShell3D, oofem::LIBeam3dNL2, oofem::SpringElement, oofem::QTrPlaneStress2dXFEM, oofem::TrPlaneStress2dXFEM, oofem::Beam2d, oofem::HTSelement, oofem::LineDistributedSpring, oofem::NodalSpringElement, oofem::PlaneStress2dXfem, oofem::MacroLSpace, oofem::tet21ghostsolid, oofem::Shell7BaseXFEM, oofem::QTRSpaceGrad, oofem::QWedgeGrad, oofem::LumpedMassElement, oofem::QTruss1dGrad, oofem::SolidShell, oofem::PlaneStressPhF2d, oofem::QPlaneStressPhF2d, oofem::QPlaneStrainGrad, oofem::QTrPlaneStressGrad, oofem::CoupledFieldsElement, oofem::QPlaneStressGrad, and oofem::QTrPlaneStrainGrad.

Definition at line 732 of file structuralelement.C.

References oofem::FloatArray::beProductOf(), oofem::FloatArray::clear(), computeBmatrixAt(), computeStressVector(), oofem::Element::computeVectorOf(), oofem::Element::computeVolumeAround(), oofem::Element::giveDefaultIntegrationRulePtr(), oofem::GaussPoint::giveMaterialMode(), oofem::GaussPoint::giveMaterialStatus(), oofem::StructuralMaterial::giveReducedSymVectorForm(), oofem::FloatArray::giveSize(), oofem::StructuralMaterial::giveSizeOfVoigtSymVector(), oofem::StructuralMaterialStatus::giveStressVector(), initialDisplacements, oofem::Element::isActivated(), oofem::FloatArray::plusProduct(), oofem::FloatArray::resize(), oofem::FloatArray::subtract(), and oofem::FloatArray::zero().

Referenced by computeInitialStressMatrix(), giveCharacteristicVector(), oofem::Beam2d::giveInternalForcesVector(), and oofem::Beam3d::giveInternalForcesVector().

void oofem::StructuralElement::giveInternalForcesVector_withIRulesAsSubcells	(	FloatArray &	answer,
		TimeStep *	tStep,
		int	useUpdatedGpRecord = `0`
	)

virtual

See also: giveInternalForcesVector

Reimplemented in oofem::NLStructuralElement.

Definition at line 804 of file structuralelement.C.

References oofem::FloatArray::assemble(), oofem::FloatArray::beProductOf(), oofem::FloatArray::clear(), computeBmatrixAt(), computeStressVector(), oofem::Element::computeVectorOf(), oofem::Element::computeVolumeAround(), oofem::Element::giveIntegrationRuleLocalCodeNumbers(), oofem::Element::giveInterpolation(), oofem::GaussPoint::giveMaterialMode(), oofem::GaussPoint::giveMaterialStatus(), oofem::FloatArray::giveSize(), oofem::StructuralMaterial::giveSizeOfVoigtSymVector(), oofem::StructuralMaterialStatus::giveStressVector(), initialDisplacements, oofem::Element::integrationRulesArray, oofem::Element::isActivated(), oofem::FloatArray::plusProduct(), oofem::FloatArray::resize(), oofem::FloatArray::subtract(), and oofem::FloatArray::zero().

Referenced by computeInitialStressMatrix().

int oofem::StructuralElement::giveInternalStateAtNode	(	FloatArray &	answer,
		InternalStateType	type,
		InternalStateMode	mode,
		int	node,
		TimeStep *	tStep
	)

virtual

Returns internal state variable (like stress,strain) at node of element in Reduced form, the way how is obtained is dependent on InternalValueType.

The value may be local, or smoothed using some recovery technique / returns zero if element is unable to respond to request.

Parameters

answer	Contains result, zero sized if not supported.
type	Determines the internal variable requested (physical meaning).
mode	Determines the mode of variable (recovered, local, ...).
node	Node number, for which variable is required.
tStep	Time step.

Returns: Nonzero if o.k, zero otherwise.

Reimplemented from oofem::Element.

Definition at line 1257 of file structuralelement.C.

References oofem::FloatArray::at(), oofem::Node::giveCoordinate(), oofem::Element::giveInternalStateAtNode(), oofem::Element::giveNode(), oofem::Node::giveUpdatedCoordinate(), and oofem::FloatArray::resize().

int oofem::StructuralElement::giveIPValue	(	FloatArray &	answer,
		GaussPoint *	gp,
		InternalStateType	type,
		TimeStep *	tStep
	)

virtual

Returns the integration point corresponding value in full form.

Parameters

answer	Contain corresponding integration point value, zero sized if not available.
gp	Integration point to check.
type	Determines the type of internal variable.
tStep	Time step.

Returns: Nonzero if o.k, zero otherwise.

Todo:: Which "error type" should be used? Why are there several? I don't see the point of this enum when there could be different function calls just as well (and different IST values)

Reimplemented from oofem::Element.

Reimplemented in oofem::Shell7Base, oofem::AbaqusUserElement, oofem::Beam3d, oofem::DKTPlate, oofem::Beam2d, oofem::QDKTPlate, oofem::MITC4Shell, oofem::CCTPlate, oofem::DKTPlate3d, oofem::Quad1MindlinShell3D, oofem::TR_SHELL01, oofem::TR_SHELL02, oofem::Quad1Mindlin, oofem::RerShell, oofem::TrPlanestressRotAllman3d, oofem::LinQuad3DPlaneStress, oofem::CCTPlate3d, oofem::Quad1PlateSubSoil, oofem::Tria1PlateSubSoil, oofem::LineDistributedSpring, oofem::tet21ghostsolid, oofem::TrPlaneStrRot, oofem::LIBeam3dNL, oofem::TrPlaneStrRot3d, oofem::LIBeam2dNL, oofem::LIBeam3d, and oofem::LIBeam2d.

Definition at line 1134 of file structuralelement.C.

References oofem::FloatArray::beProductOf(), computeNmatrixAt(), oofem::Element::computeVectorOf(), oofem::Element::giveIPValue(), oofem::GaussPoint::giveSubPatchCoordinates(), and N.

virtual void oofem::StructuralElement::giveMassMtrxIntegrationgMask ( IntArray & answer )

inlinevirtual

Returns mask indicating, which unknowns (their type and ordering is the same as element unknown vector) participate in mass matrix integration.

Nonzero value at i-th position indicates that corresponding row in interpolation matrix N will participate in mass matrix integration (typically only displacements are taken into account).

Parameters

answer Integration mask, if zero sized, all unknowns participate. This is default.

Definition at line 155 of file structuralelement.h.

References oofem::IntArray::clear(), computeStiffnessMatrix(), and computeStiffnessMatrix_withIRulesAsSubcells().

Referenced by computeConsistentMassMatrix(), and oofem::XfemStructuralElementInterface::XfemElementInterface_computeConsistentMassMatrix().

void oofem::StructuralElement::giveNonlocalLocationArray	(	IntArray &	locationArray,
		const UnknownNumberingScheme &	us
	)

virtual

Returns the "nonlocal" location array of receiver.

This is necessary, when stiffness matrix of nonlocal model is assembled. Since model is nonlocal, the value at given IP depends on other IP (generally belonging to different elements) and as a consequence leads to increase of stiffness matrix profile, to take into account this "remote" dependency.

Parameters

locationArray	Location arrays from neighboring elements.
us	Unknown numbering scheme.

Definition at line 1149 of file structuralelement.C.

References oofem::IntArray::clear(), oofem::IntArray::followedBy(), oofem::Element::giveDefaultIntegrationRulePtr(), giveStructuralCrossSection(), and oofem::NonlocalMaterialStiffnessInterfaceType.

Referenced by computeInitialStressMatrix().

int oofem::StructuralElement::giveNumberOfIPForMassMtrxIntegration ( )

protectedvirtual

Return desired number of integration points for consistent mass matrix computation, if required.

Returns: Number of integration points for mass matrix.

TODO this is without the jacobian and density

Reimplemented in oofem::Beam3d, oofem::Beam2d, oofem::TrPlaneStress2d, oofem::LSpace, oofem::TrPlaneStrain, oofem::PlaneStress2d, oofem::QTrPlaneStress2dXFEM, oofem::Quad1PlaneStrain, oofem::QTrPlaneStrain, oofem::QSpace, oofem::QTrPlaneStress2d, oofem::BasicElement, oofem::Q27Space, oofem::QTRSpace, oofem::BasicElementQuad, oofem::LTRSpace, oofem::LWedge, and oofem::QWedge.

Definition at line 323 of file structuralelement.C.

References oofem::IntegrationRule::getRequiredNumberOfIntegrationPoints(), oofem::Element::giveIntegrationDomain(), oofem::Element::giveIntegrationRule(), oofem::Element::giveInterpolation(), and oofem::FEInterpolation::giveInterpolationOrder().

Referenced by computeLoadLSToLRotationMatrix(), and setupIRForMassMtrxIntegration().

StructuralCrossSection * oofem::StructuralElement::giveStructuralCrossSection ( )

Helper function which returns the structural cross-section for the element.

Definition at line 1237 of file structuralelement.C.

References oofem::Element::giveCrossSection().

virtual void oofem::StructuralElement::giveSurfaceDofMapping	(	IntArray &	answer,
		int	iSurf
	)		const

inlineprotectedvirtual

Assembles surface dof mapping mask, which provides mapping between surface local DOFs and "global" element DOFs.

Mask can be imagined as local surface code numbers used to localize local DOFs to element DOFs.

Parameters

answer	Surface DOF mapping.
iSurf	Surface number

Reimplemented in oofem::MITC4Shell, oofem::Shell7Base, oofem::DKTPlate, oofem::Quad1PlateSubSoil, oofem::Tria1PlateSubSoil, oofem::DKTPlate3d, oofem::QDKTPlate, oofem::CCTPlate3d, oofem::Structural3DElement, oofem::TrPlaneStrRot3d, oofem::Tr2Shell7, and oofem::Tr2Shell7XFEM.

Definition at line 396 of file structuralelement.h.

References oofem::IntArray::clear().

IRResultType oofem::StructuralElement::initializeFrom ( InputRecord * ir )

virtual

Initializes receiver according to object description stored in input record.

This function is called immediately after creating object using constructor. Input record can be imagined as data record in component database belonging to receiver. Receiver may use value-name extracting functions to extract particular field from record.

See also: IR_GIVE_FIELD; IR_GIVE_OPTIONAL_FIELD

Parameters

ir	Input record to initialize from.

Returns: IRResultType

Reimplemented from oofem::Element.

Reimplemented in oofem::NLStructuralElement, oofem::AbaqusUserElement, oofem::Shell7BaseXFEM, oofem::Beam3d, oofem::MITC4Shell, oofem::Shell7Base, oofem::Beam2d, oofem::DKTPlate, oofem::QDKTPlate, oofem::RerShell, oofem::SpringElement, oofem::CCTPlate, oofem::Lattice2d, oofem::Quad1MindlinShell3D, oofem::NodalSpringElement, oofem::Truss2d, oofem::TrPlaneStress2dXFEM, oofem::TrPlaneStrain, oofem::LSpace, oofem::Truss3d, oofem::Quad1PlaneStrain, oofem::PlaneStress2d, oofem::PlaneStress2dXfem, oofem::Axisymm3d, oofem::LIBeam3dNL, oofem::LumpedMassElement, oofem::QTrPlaneStress2dXFEM, oofem::LIBeam3dNL2, oofem::InterfaceElem1d, oofem::TrPlanestressRotAllman, oofem::TR_SHELL01, oofem::LIBeam2d, oofem::TR_SHELL02, oofem::CohesiveSurface3d, oofem::Quad1Mindlin, oofem::Structural2DElement, oofem::LIBeam2dNL, oofem::InterfaceElem2dQuad, oofem::SolidShell, oofem::InterfaceElem2dLin, oofem::TrPlaneStrRot, oofem::InterfaceElement3dTrLin, oofem::LIBeam3d2, oofem::LineDistributedSpring, oofem::QTrPlaneStress2d, oofem::Quad1PlateSubSoil, oofem::Tria1PlateSubSoil, oofem::QTRSpace, oofem::Q4Axisymm, oofem::L4Axisymm, oofem::Quad2PlateSubSoil, oofem::Structural3DElement, oofem::Tr_Warp, oofem::MacroLSpace, oofem::QSpace, oofem::QWedge, oofem::LWedge, oofem::Q27Space, oofem::QTruss1dGrad, oofem::HTSelement, oofem::LIBeam3d, oofem::QSpaceGrad, oofem::QTRSpaceGrad, oofem::QWedgeGrad, oofem::LatticeStructuralElement, oofem::QTruss1d, oofem::CoupledFieldsElement, oofem::QPlaneStrainGrad, oofem::QPlaneStressGrad, oofem::QTrPlaneStressGrad, and oofem::QTrPlaneStrainGrad.

Definition at line 1224 of file structuralelement.C.

References oofem::Element::initializeFrom().

void oofem::StructuralElement::setupIRForMassMtrxIntegration ( IntegrationRule & iRule )

protectedvirtual

Setup Integration Rule Gauss Points for Mass Matrix integration.

Reimplemented in oofem::MITC4Shell.

Definition at line 391 of file structuralelement.C.

References oofem::Element::giveIntegrationDomain(), oofem::Element::giveMaterialMode(), giveNumberOfIPForMassMtrxIntegration(), OOFEM_ERROR, and oofem::IntegrationRule::setUpIntegrationPoints().

Referenced by computeConsistentMassMatrix(), and computeLoadLSToLRotationMatrix().

void oofem::StructuralElement::showExtendedSparseMtrxStructure	(	CharType	mtrx,
		oofegGraphicContext &	gc,
		TimeStep *	tStep
	)

virtual

Shows extended sparse structure (for example, due to nonlocal interactions for tangent stiffness)

Reimplemented from oofem::Element.

Definition at line 1358 of file structuralelement.C.

References oofem::Element::giveDefaultIntegrationRulePtr(), giveStructuralCrossSection(), and oofem::NonlocalMaterialStiffnessInterfaceType.

Referenced by giveClassName().

void oofem::StructuralElement::showSparseMtrxStructure	(	CharType	mtrx,
		oofegGraphicContext &	gc,
		TimeStep *	tStep
	)

virtual

Shows sparse structure.

Reimplemented from oofem::Element.

Definition at line 1274 of file structuralelement.C.

References oofem::IntArray::at(), oofem::oofegGraphicContext::getSparseProfileMode(), oofem::oofegGraphicContext::getStandardSparseProfileColor(), oofem::Element::giveLocationArray(), oofem::IntArray::giveSize(), OOFEG_SPARSE_PROFILE_LAYER, and OOFEG_SPARSE_PROFILE_WIDTH.

Referenced by giveClassName().

void oofem::StructuralElement::updateBeforeNonlocalAverage ( TimeStep * tStep )

virtual

Updates internal element state (in all integration points of receiver) before nonlocal averaging takes place.

Used by so nonlocal materials, because their response in particular point depends not only on state in this point, but depends also on state in point's neighborhood. Nonlocal quantity is computed as nonlocal average of local quantities. Therefore, before updating integration point state depending on nonlocal quantity (or quantities), local quantities in all integration points must be updated in advance. This function updates local quantities of material model using updateBeforeNonlocalAverage member function of structural nonlocal material class.

Parameters

tStep Time step.

Reimplemented from oofem::Element.

Definition at line 970 of file structuralelement.C.

References computeStrainVector(), oofem::Element_remote, oofem::Element::giveParallelMode(), giveStructuralCrossSection(), oofem::Element::integrationRulesArray, oofem::NonlocalMaterialExtensionInterfaceType, and oofem::StructuralNonlocalMaterialExtensionInterface::updateBeforeNonlocAverage().

Referenced by computeInitialStressMatrix().

void oofem::StructuralElement::updateInternalState ( TimeStep * tStep )

virtual

Updates element state after equilibrium in time step has been reached.

Default implementation updates all integration rules defined by integrationRulesArray member variable. Doing this, all integration points and their material statuses are updated also. All temporary history variables, which now describe equilibrium state are copied into equilibrium ones. The existing internal state is used for update.

Parameters

tStep Time step for newly reached state.

See also: Material::updateYourself; IntegrationRule::updateYourself; GaussPoint::updateYourself; Element::updateInternalState

Reimplemented from oofem::Element.

Reimplemented in oofem::AbaqusUserElement, oofem::SpringElement, oofem::TR_SHELL01, oofem::TR_SHELL02, oofem::NodalSpringElement, and oofem::LumpedMassElement.

Definition at line 955 of file structuralelement.C.

References computeStrainVector(), computeStressVector(), and oofem::Element::integrationRulesArray.

Referenced by computeInitialStressMatrix().

void oofem::StructuralElement::updateYourself ( TimeStep * tStep )

virtual

Updates element state after equilibrium in time step has been reached.

Default implementation updates all integration rules defined by integrationRulesArray member variable. Doing this, all integration points and their material statuses are updated also. All temporary history variables, which now describe equilibrium state are copied into equilibrium ones. The existing internal state is used for update.

Parameters

tStep Time step for newly reached state.