This class implements an isotropic linear elastic material in a finite element problem. More...

#include <isolinearelasticmaterial.h>

Inheritance diagram for oofem::IsotropicLinearElasticMaterial:

Collaboration diagram for oofem::IsotropicLinearElasticMaterial:

Public Member Functions
	IsotropicLinearElasticMaterial (int n, Domain *d)
	Creates a new IsotropicLinearElasticMaterial class instance with given number belonging to domain d. More...

	IsotropicLinearElasticMaterial (int n, Domain *d, double E, double nu)
	Creates a new IsotropicLinearElasticMaterial class instance with given number belonging to domain d. More...

virtual	~IsotropicLinearElasticMaterial ()
	Destructor. More...

virtual void	giveThermalDilatationVector (FloatArray &answer, GaussPoint gp, TimeStep tStep)
	Returns a vector of coefficients of thermal dilatation in direction of each material principal (local) axis. More...

virtual const char *	giveClassName () const

virtual const char *	giveInputRecordName () const

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 double	give (int aProperty, GaussPoint *gp)
	Returns the value of material property 'aProperty'. More...

double	giveYoungsModulus ()
	Returns Young's modulus. More...

double	givePoissonsRatio ()
	Returns Poisson's ratio. More...

double	giveShearModulus ()
	Returns the shear elastic modulus $G = \frac{E}{2(1+\nu)}$ . More...

double	giveBulkModulus ()
	Returns the bulk elastic modulus $K = \frac{E}{3(1-2\nu)}$ . More...

virtual void	give3dMaterialStiffnessMatrix (FloatMatrix &answer, MatResponseMode, GaussPoint gp, TimeStep tStep)
	Computes full 3d material stiffness matrix at given integration point, time, respecting load history in integration point. More...

virtual void	givePlaneStressStiffMtrx (FloatMatrix &answer, MatResponseMode, GaussPoint gp, TimeStep tStep)
	Method for computing plane stress stiffness matrix of receiver. More...

virtual void	givePlaneStrainStiffMtrx (FloatMatrix &answer, MatResponseMode, GaussPoint gp, TimeStep tStep)
	Method for computing plane strain stiffness matrix of receiver. More...

virtual void	give1dStressStiffMtrx (FloatMatrix &answer, MatResponseMode, GaussPoint gp, TimeStep tStep)
	Method for computing 1d stiffness matrix of receiver. More...

virtual double	giveQcElasticParamneter ()

virtual double	giveQcPlasticParamneter ()

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

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

virtual	~LinearElasticMaterial ()
	Destructor. More...

virtual void	giveRealStressVector_3d (FloatArray &answer, GaussPoint gp, const FloatArray &strain, TimeStep tStep)
	Default implementation relies on giveRealStressVector for second Piola-Kirchoff stress. More...

virtual void	giveRealStressVector_PlaneStrain (FloatArray &answer, GaussPoint gp, const FloatArray &reducedStrain, TimeStep tStep)
	Default implementation relies on giveRealStressVector_3d. More...

virtual void	giveRealStressVector_3dDegeneratedShell (FloatArray &answer, GaussPoint gp, const FloatArray &reducedF, TimeStep tStep)

virtual void	giveRealStressVector_PlaneStress (FloatArray &answer, GaussPoint gp, const FloatArray &reducedStrain, TimeStep tStep)
	Default implementation relies on giveRealStressVector_StressControl. More...

virtual void	giveRealStressVector_1d (FloatArray &answer, GaussPoint gp, const FloatArray &reducedStrain, TimeStep tStep)
	Default implementation relies on giveRealStressVector_StressControl. More...

virtual void	giveRealStressVector_Warping (FloatArray &answer, GaussPoint gp, const FloatArray &reducedStrain, TimeStep tStep)
	Default implementation relies on giveRealStressVector_StressControl. More...

virtual void	giveRealStressVector_2dBeamLayer (FloatArray &answer, GaussPoint gp, const FloatArray &reducedE, TimeStep tStep)
	Default implementation relies on giveRealStressVector_StressControl. More...

virtual void	giveRealStressVector_PlateLayer (FloatArray &answer, GaussPoint gp, const FloatArray &reducedE, TimeStep tStep)
	Default implementation relies on giveRealStressVector_StressControl. More...

virtual void	giveRealStressVector_Fiber (FloatArray &answer, GaussPoint gp, const FloatArray &reducedE, TimeStep tStep)
	Default implementation relies on giveRealStressVector_StressControl. More...

virtual void	giveEshelbyStressVector_PlaneStrain (FloatArray &answer, GaussPoint gp, const FloatArray &reducedF, TimeStep tStep)
	Prototype for computation of Eshelby stress. More...

double	giveEnergyDensity (GaussPoint gp, TimeStep tStep)

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

virtual MaterialStatus *	CreateStatus (GaussPoint *gp) const
	Creates new copy of associated status and inserts it into given integration point. More...

virtual int	hasNonLinearBehaviour ()
	Returns nonzero if receiver is non linear. More...

virtual int	hasCastingTimeSupport ()
	Tests if material supports casting time. More...

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

virtual	~StructuralMaterial ()
	Destructor. More...

virtual int	hasMaterialModeCapability (MaterialMode mode)
	Tests if material supports material mode. More...

virtual void	giveStiffnessMatrix (FloatMatrix &answer, MatResponseMode mode, GaussPoint gp, TimeStep tStep)
	Computes the stiffness matrix for giveRealStressVector of receiver in given integration point, respecting its history. More...

virtual void	giveRealStressVector (FloatArray &answer, GaussPoint gp, const FloatArray &reducedStrain, TimeStep tStep)
	Computes the real stress vector for given total strain and integration point. More...

virtual void	giveRealStressVector_StressControl (FloatArray &answer, GaussPoint gp, const FloatArray &reducedE, const IntArray &strainControl, TimeStep tStep)
	Iteratively calls giveRealStressVector_3d to find the stress controlled equal to zero· More...

virtual void	giveRealStressVector_ShellStressControl (FloatArray &answer, GaussPoint gp, const FloatArray &reducedE, const IntArray &strainControl, TimeStep tStep)

virtual void	giveRealStressVector_Lattice2d (FloatArray &answer, GaussPoint gp, const FloatArray &reducedE, TimeStep tStep)

virtual void	giveRealStressVector_Lattice3d (FloatArray &answer, GaussPoint gp, const FloatArray &reducedE, TimeStep tStep)

virtual void	giveRealStressVector_2dPlateSubSoil (FloatArray &answer, GaussPoint gp, const FloatArray &reducedE, TimeStep tStep)
	Default implementation is not provided. More...

virtual void	giveRealStressVector_3dBeamSubSoil (FloatArray &answer, GaussPoint gp, const FloatArray &reducedE, TimeStep tStep)

void	give_dPdF_from (const FloatMatrix &dSdE, FloatMatrix &answer, GaussPoint *gp)

void	convert_dSdE_2_dPdF (FloatMatrix &answer, const FloatMatrix &dSdE, const FloatArray &S, const FloatArray &F, MaterialMode matMode)

double	giveReferenceTemperature ()
	Returns the reference temperature of receiver. More...

virtual void	computeStressIndependentStrainVector (FloatArray &answer, GaussPoint gp, TimeStep tStep, ValueModeType mode)
	Computes reduced strain vector in given integration point, generated by internal processes in material, which are independent on loading in particular integration point. More...

virtual void	computeStressIndependentStrainVector_3d (FloatArray &answer, GaussPoint gp, TimeStep tStep, ValueModeType mode)

virtual void	give3dMaterialStiffnessMatrix_dPdF (FloatMatrix &answer, MatResponseMode mode, GaussPoint gp, TimeStep tStep)

virtual void	give3dMaterialStiffnessMatrix_dCde (FloatMatrix &answer, MatResponseMode mode, GaussPoint gp, TimeStep tStep)

void	giveStressDependentPartOfStrainVector (FloatArray &answer, GaussPoint gp, const FloatArray &reducedStrainVector, TimeStep tStep, ValueModeType mode)
	Method for subtracting from reduced space strain vector its stress-independent parts (caused by temperature, shrinkage, creep and possibly by other phenomena). More...

void	giveStressDependentPartOfStrainVector_3d (FloatArray &answer, GaussPoint gp, const FloatArray &reducedStrainVector, TimeStep tStep, ValueModeType mode)

virtual int	setIPValue (const FloatArray &value, GaussPoint *gp, InternalStateType type)
	Sets the value of a certain variable at a given integration point to the given value. More...

virtual void	give2dBeamLayerStiffMtrx (FloatMatrix &answer, MatResponseMode mmode, GaussPoint gp, TimeStep tStep)
	Method for computing 2d beam layer stiffness matrix of receiver. More...

virtual void	givePlateLayerStiffMtrx (FloatMatrix &answer, MatResponseMode mmode, GaussPoint gp, TimeStep tStep)
	Method for computing 2d plate layer stiffness matrix of receiver. More...

virtual void	giveFiberStiffMtrx (FloatMatrix &answer, MatResponseMode mmode, GaussPoint gp, TimeStep tStep)
	Method for computing 1d fiber stiffness matrix of receiver. More...

virtual void	give2dLatticeStiffMtrx (FloatMatrix &answer, MatResponseMode mmode, GaussPoint gp, TimeStep tStep)
	Method for computing 2d lattice stiffness matrix of receiver. More...

virtual void	give3dLatticeStiffMtrx (FloatMatrix &answer, MatResponseMode mmode, GaussPoint gp, TimeStep tStep)
	Method for computing 3d lattice stiffness matrix of receiver. More...

virtual void	give2dPlateSubSoilStiffMtrx (FloatMatrix &answer, MatResponseMode mmode, GaussPoint gp, TimeStep tStep)
	Method for computing stiffness matrix of plate subsoil model. More...

virtual void	give3dBeamSubSoilStiffMtrx (FloatMatrix &answer, MatResponseMode mmode, GaussPoint gp, TimeStep tStep)
	Method for computing stiffness matrix of beam3d subsoil model. More...

virtual void	giveFirstPKStressVector_3d (FloatArray &answer, GaussPoint gp, const FloatArray &reducedF, TimeStep tStep)
	Default implementation relies on giveRealStressVector for second Piola-Kirchoff stress. More...

virtual void	giveFirstPKStressVector_PlaneStrain (FloatArray &answer, GaussPoint gp, const FloatArray &reducedF, TimeStep tStep)
	Default implementation relies on giveFirstPKStressVector_3d. More...

virtual void	giveFirstPKStressVector_PlaneStress (FloatArray &answer, GaussPoint gp, const FloatArray &reducedF, TimeStep tStep)
	Default implementation relies on giveFirstPKStressVector_3d. More...

virtual void	giveFirstPKStressVector_1d (FloatArray &answer, GaussPoint gp, const FloatArray &reducedF, TimeStep tStep)
	Default implementation relies on giveFirstPKStressVector_3d. More...

virtual void	giveCauchyStressVector_3d (FloatArray &answer, GaussPoint gp, const FloatArray &reducedF, TimeStep tStep)

virtual void	giveCauchyStressVector_PlaneStrain (FloatArray &answer, GaussPoint gp, const FloatArray &reducedF, TimeStep tStep)

virtual void	giveCauchyStressVector_PlaneStress (FloatArray &answer, GaussPoint gp, const FloatArray &reducedF, TimeStep tStep)

virtual void	giveCauchyStressVector_1d (FloatArray &answer, GaussPoint gp, const FloatArray &reducedF, TimeStep tStep)

virtual void	givePlaneStressStiffMtrx_dPdF (FloatMatrix &answer, MatResponseMode mmode, GaussPoint gp, TimeStep tStep)

virtual void	givePlaneStressStiffMtrx_dCde (FloatMatrix &answer, MatResponseMode mmode, GaussPoint gp, TimeStep tStep)

virtual void	givePlaneStrainStiffMtrx_dPdF (FloatMatrix &answer, MatResponseMode mmode, GaussPoint gp, TimeStep tStep)

virtual void	givePlaneStrainStiffMtrx_dCde (FloatMatrix &answer, MatResponseMode mmode, GaussPoint gp, TimeStep tStep)

virtual void	give1dStressStiffMtrx_dPdF (FloatMatrix &answer, MatResponseMode mmode, GaussPoint gp, TimeStep tStep)

virtual void	give1dStressStiffMtrx_dCde (FloatMatrix &answer, MatResponseMode mmode, GaussPoint gp, TimeStep tStep)

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

virtual	~Material ()
	Destructor. More...

virtual bool	isCharacteristicMtrxSymmetric (MatResponseMode rMode)
	Returns true if stiffness matrix of receiver is symmetric Default implementation returns true. More...

virtual bool	hasProperty (int aProperty, GaussPoint *gp)
	Returns true if 'aProperty' exists on material. More...

virtual void	modifyProperty (int aProperty, double value, GaussPoint *gp)
	Modify 'aProperty', which already exists on material. More...

double	giveCastingTime ()

virtual bool	isActivated (TimeStep *tStep)

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

virtual contextIOResultType	saveIPContext (DataStream &stream, ContextMode mode, GaussPoint *gp)
	Stores integration point state to output stream. More...

virtual contextIOResultType	restoreIPContext (DataStream &stream, ContextMode mode, GaussPoint *gp)
	Reads integration point state to output stream. More...

virtual int	checkConsistency ()
	Allows programmer to test some internal data, before computation begins. More...

virtual int	initMaterial (Element *element)
	Optional function to call specific procedures when initializing a material. More...

virtual MaterialStatus *	giveStatus (GaussPoint *gp) const
	Returns material status of receiver in given integration point. More...

virtual int	packUnknowns (DataStream &buff, TimeStep tStep, GaussPoint ip)
	Pack all necessary data of integration point (according to element parallel_mode) into given communication buffer. More...

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

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

virtual double	predictRelativeComputationalCost (GaussPoint *gp)
	Returns the weight representing relative computational cost of receiver The reference material model is linear isotropic material - its weight is set to 1.0 The other material models should compare to this reference model. More...

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

virtual void	initTempStatus (GaussPoint *gp)
	Initializes temporary variables stored in integration point status at the beginning of new time step. 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...

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	updateLocalNumbering (EntityRenumberingFunctor &f)
	Local renumbering support. 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...

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

Public Member Functions inherited from oofem::QCMaterialExtensionInterface
	QCMaterialExtensionInterface ()
	Constructor. More...

virtual	~QCMaterialExtensionInterface ()
	Destructor. More...

Public Member Functions inherited from oofem::Interface
	Interface ()
	Constructor. More...

virtual	~Interface ()

Static Public Member Functions
static double	computeBulkModulusFromYoungAndPoisson (double young, double nu)
	Computes bulk modulus from given Young's modulus and Poisson's ratio. More...

static double	computeShearModulusFromYoungAndPoisson (double young, double nu)
	Computes shear modulus from given Young's modulus and Poisson's ratio. More...

Static Public Member Functions inherited from oofem::StructuralMaterial
static int	giveSymVI (int ind1, int ind2)

static int	giveVI (int ind1, int ind2)

static int	giveVoigtVectorMask (IntArray &answer, MaterialMode mmode)
	Returns a mask of the vector indicies corresponding to components in a general (non-symmetric) second order tensor of some stress/strain/deformation measure that performes work. More...

static int	giveVoigtSymVectorMask (IntArray &answer, MaterialMode mmode)
	The same as giveVoigtVectorMask but returns a mask corresponding to a symmetric second order tensor. More...

static void	giveInvertedVoigtVectorMask (IntArray &answer, MaterialMode mmode)
	Gives the inverted version of giveVoigtVectorMask. More...

static int	giveSizeOfVoigtVector (MaterialMode mmode)
	Returns the size of reduced stress/strain vector according to given mode. More...

static int	giveSizeOfVoigtSymVector (MaterialMode mmode)
	Returns the size of symmetric part of a reduced stress/strain vector according to given mode. More...

static void	giveFullVectorForm (FloatArray &answer, const FloatArray &strainVector, MaterialMode matMode)
	Converts the reduced symmetric Voigt vector (2nd order tensor) to full form. More...

static void	giveFullVectorFormF (FloatArray &answer, const FloatArray &strainVector, MaterialMode matMode)
	Converts the reduced deformation gradient Voigt vector (2nd order tensor). More...

static void	giveFullSymVectorForm (FloatArray &answer, const FloatArray &vec, MaterialMode matMode)
	Converts the reduced unsymmetric Voigt vector (2nd order tensor) to full form. More...

static void	giveReducedVectorForm (FloatArray &answer, const FloatArray &vec, MaterialMode matMode)
	Converts the full symmetric Voigt vector (2nd order tensor) to reduced form. More...

static void	giveReducedSymVectorForm (FloatArray &answer, const FloatArray &vec, MaterialMode matMode)
	Converts the full unsymmetric Voigt vector (2nd order tensor) to reduced form. More...

static void	giveFullSymMatrixForm (FloatMatrix &answer, const FloatMatrix &red, MaterialMode matMode)
	Converts the full unsymmetric Voigt matrix (4th order tensor) to reduced form. More...

static void	giveReducedMatrixForm (FloatMatrix &answer, const FloatMatrix &full, MaterialMode matMode)
	Converts the full symmetric Voigt matrix (4th order tensor) to reduced form. More...

static void	giveReducedSymMatrixForm (FloatMatrix &answer, const FloatMatrix &full, MaterialMode matMode)
	Converts the full unsymmetric Voigt matrix (4th order tensor) to reduced form. More...

static void	transformStrainVectorTo (FloatArray &answer, const FloatMatrix &base, const FloatArray &strainVector, bool transpose=false)
	Transforms 3d strain vector into another coordinate system. More...

static void	transformStressVectorTo (FloatArray &answer, const FloatMatrix &base, const FloatArray &stressVector, bool transpose=false)
	Transforms 3d stress vector into another coordinate system. More...

static double	computeVonMisesStress (const FloatArray *currentStress)
	Computes equivalent of von Mises stress. More...

static void	giveStrainVectorTranformationMtrx (FloatMatrix &answer, const FloatMatrix &base, bool transpose=false)
	Computes 3d strain vector transformation matrix from standard vector transformation matrix. More...

static void	give2DStrainVectorTranformationMtrx (FloatMatrix &answer, const FloatMatrix &base, bool transpose=false)
	Computes 2d strain vector transformation matrix from standard vector transformation matrix. More...

static void	giveStressVectorTranformationMtrx (FloatMatrix &answer, const FloatMatrix &base, bool transpose=false)
	Computes 3d stress vector transformation matrix from standard vector transformation matrix. More...

static void	givePlaneStressVectorTranformationMtrx (FloatMatrix &answer, const FloatMatrix &base, bool transpose=false)
	Computes 2d stress vector transformation matrix from standard vector transformation matrix. More...

static void	sortPrincDirAndValCloseTo (FloatArray pVal, FloatMatrix pDir, FloatMatrix *toPDir)
	Method for sorting newly computed principal values (pVal) and corresponding principal directions (pDir) to be closed to some (often previous) principal directions (toPDir). More...

static void	computePrincipalValues (FloatArray &answer, const FloatArray &s, stressStrainPrincMode mode)
	Common functions for convenience. More...

static void	computePrincipalValDir (FloatArray &answer, FloatMatrix &dir, const FloatArray &s, stressStrainPrincMode mode)
	Computes principal values and directions of stress or strain vector. More...

static double	computeDeviatoricVolumetricSplit (FloatArray &dev, const FloatArray &s)
	Computes split of receiver into deviatoric and volumetric part. More...

static void	computeDeviatoricVolumetricSum (FloatArray &s, const FloatArray &dev, double mean)

static void	applyDeviatoricElasticCompliance (FloatArray &strain, const FloatArray &stress, double EModulus, double nu)

static void	applyDeviatoricElasticCompliance (FloatArray &strain, const FloatArray &stress, double GModulus)

static void	applyDeviatoricElasticStiffness (FloatArray &stress, const FloatArray &strain, double EModulus, double nu)

static void	applyDeviatoricElasticStiffness (FloatArray &stress, const FloatArray &strain, double GModulus)

static void	applyElasticStiffness (FloatArray &stress, const FloatArray &strain, double EModulus, double nu)

static void	applyElasticCompliance (FloatArray &strain, const FloatArray &stress, double EModulus, double nu)

static double	computeStressNorm (const FloatArray &stress)

static double	computeFirstInvariant (const FloatArray &s)

static double	computeSecondStressInvariant (const FloatArray &s)

static double	computeThirdStressInvariant (const FloatArray &s)

static double	computeFirstCoordinate (const FloatArray &s)

static double	computeSecondCoordinate (const FloatArray &s)

static double	computeThirdCoordinate (const FloatArray &s)

Protected Attributes
double	E
	Young's modulus. More...

double	nu
	Poisson's ratio. More...

double	G
	Shear modulus. More...

Protected Attributes inherited from oofem::LinearElasticMaterial
double	preCastStiffnessReduction
	artificial isotropic damage to reflect reduction in stiffness for time < castingTime. More...

Protected Attributes inherited from oofem::StructuralMaterial
double	referenceTemperature
	Reference temperature (temperature, when material has been built into structure). More...

Protected Attributes inherited from oofem::Material
Dictionary	propertyDictionary
	Property dictionary. More...

double	castingTime
	Casting time. 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...

Additional Inherited Members
Static Public Attributes inherited from oofem::StructuralMaterial
static std::vector< std::vector< int > >	vIindex
	Voigt index map. More...

static std::vector< std::vector< int > >	svIndex
	Symmetric Voigt index map. More...

Detailed Description

This class implements an isotropic linear elastic material in a finite element problem.

For large deformation analysis it becomes the St. Venant-Kirchoff hyperelasticity model.

Tasks:

Returning standard material stiffness matrix for 3d-case. according to current state determined by using data stored in Gausspoint.
methods give2dPlaneStressMtrx, givePlaneStrainMtrx, give1dStressMtrx are introduced since form of this matrices is well known, and for faster response mainly in linear elastic problems.
Returning a material property (method 'give'). Only for non-standard elements.
Returning real stress state vector(tensor) at gauss point for 3d - case.

Definition at line 70 of file isolinearelasticmaterial.h.

Constructor & Destructor Documentation

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

inline

Creates a new IsotropicLinearElasticMaterial class instance with given number belonging to domain d.

Parameters

n	material model number in domain
d	domain which receiver belongs to

Definition at line 87 of file isolinearelasticmaterial.h.

oofem::IsotropicLinearElasticMaterial::IsotropicLinearElasticMaterial	(	int	n,
		Domain *	d,
		double	E,
		double	nu
	)

Creates a new IsotropicLinearElasticMaterial class instance with given number belonging to domain d.

Parameters

n	Material model number in domain.
d	Domain which receiver belongs to.
E	Young modulus.
nu	Poisson ratio.

Definition at line 47 of file isolinearelasticmaterial.C.

References E, G, and nu.

virtual oofem::IsotropicLinearElasticMaterial::~IsotropicLinearElasticMaterial ( )

inlinevirtual

Destructor.

Definition at line 98 of file isolinearelasticmaterial.h.

References giveThermalDilatationVector().

Member Function Documentation

static double oofem::IsotropicLinearElasticMaterial::computeBulkModulusFromYoungAndPoisson	(	double	young,
		double	nu
	)

inlinestatic

Computes bulk modulus from given Young's modulus and Poisson's ratio.

Parameters

young	Young's modulus ( ).
nu	Poisson's ratio ( $\nu$ ).

Returns: Bulk modulus ( ).

Definition at line 158 of file isolinearelasticmaterial.h.

References nu.

Referenced by oofem::DustMaterial::computeAndSetBulkAndShearModuli().

static double oofem::IsotropicLinearElasticMaterial::computeShearModulusFromYoungAndPoisson	(	double	young,
		double	nu
	)

inlinestatic

Computes shear modulus from given Young's modulus and Poisson's ratio.

Parameters

young	Young's modulus ( ).
nu	Poisson's ratio ( $\nu$ ).

Returns: Shear modulus ( $G = \frac{E}{2 (1+\nu)}$ ).

Definition at line 169 of file isolinearelasticmaterial.h.

References nu.

Referenced by oofem::DustMaterial::computeAndSetBulkAndShearModuli().

double oofem::IsotropicLinearElasticMaterial::give	(	int	aProperty,
		GaussPoint *	gp
	)

virtual

Returns the value of material property 'aProperty'.

Property must be identified by unique int id. Integration point also passed to allow for materials with spatially varying properties

Parameters

aProperty	ID of property requested.
gp	Integration point,

Returns: Property value.

Reimplemented from oofem::Material.

Definition at line 94 of file isolinearelasticmaterial.C.

References E, Ex, Ey, Ez, G, oofem::Material::give(), Gxy, Gxz, Gyz, nu, NYxy, NYxz, NYyx, NYyz, NYzx, and NYzy.

Referenced by oofem::FCMMaterial::give(), giveInputRecordName(), oofem::DruckerPragerPlasticitySM::giveRegAlgorithmicStiffMatrix(), oofem::TutorialMaterial::giveThermalDilatationVector(), giveThermalDilatationVector(), oofem::DruckerPragerPlasticitySM::giveVertexAlgorithmicStiffMatrix(), and oofem::DruckerPragerPlasticitySM::performLocalStressReturn().

void oofem::IsotropicLinearElasticMaterial::give1dStressStiffMtrx	(	FloatMatrix &	answer,
		MatResponseMode	mmode,
		GaussPoint *	gp,
		TimeStep *	tStep
	)

virtual

Method for computing 1d stiffness matrix of receiver.

Default implementation computes 3d stiffness matrix using give3dMaterialStiffnessMatrix and reduces it to 1d stiffness using reduce method described above. However, this reduction is quite time consuming and if it is possible, it is recommended to overload this method and provide direct method for computing particular stiffness matrix.

Parameters

answer	Stiffness matrix.
mmode	Material response mode.
gp	Integration point, which load history is used.
tStep	Time step (most models are able to respond only when tStep is current time step).

Reimplemented from oofem::StructuralMaterial.

Definition at line 226 of file isolinearelasticmaterial.C.

References oofem::FloatMatrix::at(), oofem::Material::castingTime, E, oofem::TimeStep::giveIntrinsicTime(), oofem::LinearElasticMaterial::preCastStiffnessReduction, oofem::FloatMatrix::resize(), and oofem::FloatMatrix::times().

Referenced by giveBulkModulus().

void oofem::IsotropicLinearElasticMaterial::give3dMaterialStiffnessMatrix	(	FloatMatrix &	answer,
		MatResponseMode	mode,
		GaussPoint *	gp,
		TimeStep *	tStep
	)

virtual

Computes full 3d material stiffness matrix at given integration point, time, respecting load history in integration point.

Parameters

answer	Computed results.
mode	Material response mode.
gp	Integration point.
tStep	Time step (most models are able to respond only when tStep is current time step).

Reimplemented from oofem::StructuralMaterial.

Definition at line 124 of file isolinearelasticmaterial.C.

References oofem::FloatMatrix::at(), oofem::Material::castingTime, E, oofem::TimeStep::giveIntrinsicTime(), nu, oofem::LinearElasticMaterial::preCastStiffnessReduction, oofem::FloatMatrix::resize(), oofem::FloatMatrix::times(), and oofem::FloatMatrix::zero().

Referenced by oofem::AnisotropicDamageMaterial::give1dStressStiffMtrx(), oofem::StructuralMaterialSettable::give3dMaterialStiffnessMatrix(), oofem::TutorialMaterial::give3dMaterialStiffnessMatrix(), oofem::DruckerPragerPlasticitySM::give3dMaterialStiffnessMatrix(), oofem::DustMaterial::give3dMaterialStiffnessMatrix(), giveBulkModulus(), oofem::TutorialMaterial::giveRealStressVector_3d(), oofem::DruckerPragerPlasticitySM::giveRegAlgorithmicStiffMatrix(), and oofem::DruckerPragerPlasticitySM::giveVertexAlgorithmicStiffMatrix().

double oofem::IsotropicLinearElasticMaterial::giveBulkModulus ( )

inline

Returns the bulk elastic modulus $K = \frac{E}{3(1-2\nu)}$ .

Definition at line 133 of file isolinearelasticmaterial.h.

References give1dStressStiffMtrx(), give3dMaterialStiffnessMatrix(), givePlaneStrainStiffMtrx(), givePlaneStressStiffMtrx(), and nu.

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

inlinevirtual

Returns: Class name of the receiver.

Reimplemented from oofem::LinearElasticMaterial.

Definition at line 110 of file isolinearelasticmaterial.h.

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

virtual

Setups the input record string of receiver.

Parameters

input Dynamic input record to be filled by receiver.

Reimplemented from oofem::LinearElasticMaterial.

Definition at line 81 of file isolinearelasticmaterial.C.

References _IFT_IsotropicLinearElasticMaterial_e, _IFT_IsotropicLinearElasticMaterial_n, _IFT_IsotropicLinearElasticMaterial_talpha, oofem::Dictionary::at(), E, oofem::LinearElasticMaterial::giveInputRecord(), oofem::StructuralMaterial::giveInputRecord(), nu, oofem::Material::propertyDictionary, oofem::DynamicInputRecord::setField(), and tAlpha.

Referenced by oofem::TutorialMaterial::giveInputRecord(), and giveInputRecordName().

virtual const char* oofem::IsotropicLinearElasticMaterial::giveInputRecordName ( ) const

inlinevirtual

Returns: Input record name of the receiver.

Implements oofem::FEMComponent.

Definition at line 111 of file isolinearelasticmaterial.h.

References _IFT_IsotropicLinearElasticMaterial_Name, give(), giveInputRecord(), and initializeFrom().

virtual Interface* oofem::IsotropicLinearElasticMaterial::giveInterface ( InterfaceType t )

inlinevirtual

Interface requesting service.

See also: InterfaceType

Returns: Requested interface if implemented, otherwise NULL.

Reimplemented from oofem::FEMComponent.

Definition at line 178 of file isolinearelasticmaterial.h.

References oofem::QCMaterialExtensionInterfaceType.

void oofem::IsotropicLinearElasticMaterial::givePlaneStrainStiffMtrx	(	FloatMatrix &	answer,
		MatResponseMode	mmode,
		GaussPoint *	gp,
		TimeStep *	tStep
	)

virtual

Method for computing plane strain stiffness matrix of receiver.

Default implementation computes 3d stiffness matrix using give3dMaterialStiffnessMatrix and reduces it to plane strain stiffness using reduce method described above. However, this reduction is quite time consuming and if it is possible, it is recommended to overload this method and provide direct method for computing particular stiffness matrix. Note: as already described, if zero strain component is imposed (Plane strain, ..) this condition must be taken into account in geometrical relations, and corresponding component has to be included in reduced vector. (So plane strain conditions are $\epsilon_z = \gamma_{xz} = \gamma_{yz} = 0$ , but relations for $\epsilon_z$ and $\sigma_z$ are included).

Parameters

answer	Stiffness matrix.
mmode	Material response mode.
gp	Integration point, which load history is used.
tStep	Time step (most models are able to respond only when tStep is current time step).

Reimplemented from oofem::StructuralMaterial.

Definition at line 193 of file isolinearelasticmaterial.C.

References oofem::FloatMatrix::at(), oofem::Material::castingTime, E, G, oofem::TimeStep::giveIntrinsicTime(), nu, oofem::LinearElasticMaterial::preCastStiffnessReduction, oofem::FloatMatrix::resize(), oofem::FloatMatrix::times(), and oofem::FloatMatrix::zero().

Referenced by giveBulkModulus().

void oofem::IsotropicLinearElasticMaterial::givePlaneStressStiffMtrx	(	FloatMatrix &	answer,
		MatResponseMode	mmode,
		GaussPoint *	gp,
		TimeStep *	tStep
	)

virtual

Method for computing plane stress stiffness matrix of receiver.

Default implementation computes 3d stiffness matrix using give3dMaterialStiffnessMatrix and reduces it to plane stress stiffness using reduce method described above. However, this reduction is quite time consuming and if it is possible, it is recommended to overload this method and provide direct method for computing particular stiffness matrix.

Parameters

answer	Stiffness matrix.
mmode	Material response mode.
gp	Integration point, which load history is used.
tStep	Time step (most models are able to respond only when tStep is current time step).

Reimplemented from oofem::StructuralMaterial.

Definition at line 164 of file isolinearelasticmaterial.C.

References oofem::FloatMatrix::at(), oofem::Material::castingTime, E, G, oofem::TimeStep::giveIntrinsicTime(), oofem::Material::giveStatus(), nu, oofem::LinearElasticMaterial::preCastStiffnessReduction, oofem::FloatMatrix::resize(), oofem::FloatMatrix::times(), and oofem::FloatMatrix::zero().

Referenced by giveBulkModulus().

double oofem::IsotropicLinearElasticMaterial::givePoissonsRatio ( )

inline

Returns Poisson's ratio.

Definition at line 127 of file isolinearelasticmaterial.h.

References nu.

Referenced by oofem::DustMaterial::computeAndSetBulkAndShearModuli(), oofem::J2plasticMaterial::giveInputRecord(), and oofem::AnisotropicDamageMaterial::initializeFrom().

virtual double oofem::IsotropicLinearElasticMaterial::giveQcElasticParamneter ( )

inlinevirtual

Implements oofem::QCMaterialExtensionInterface.

Definition at line 175 of file isolinearelasticmaterial.h.

References E.

virtual double oofem::IsotropicLinearElasticMaterial::giveQcPlasticParamneter ( )

inlinevirtual

Implements oofem::QCMaterialExtensionInterface.

Definition at line 176 of file isolinearelasticmaterial.h.

double oofem::IsotropicLinearElasticMaterial::giveShearModulus ( )

inlinevirtual

Returns the shear elastic modulus $G = \frac{E}{2(1+\nu)}$ .

Reimplemented from oofem::LinearElasticMaterial.

Definition at line 130 of file isolinearelasticmaterial.h.

References G.

Referenced by oofem::FCMMaterial::computeOverallElasticShearModulus(), oofem::TutorialMaterial::give3dMaterialStiffnessMatrix(), and oofem::TutorialMaterial::giveRealStressVector_3d().

void oofem::IsotropicLinearElasticMaterial::giveThermalDilatationVector	(	FloatArray &	answer,
		GaussPoint *	gp,
		TimeStep *	tStep
	)

virtual

Returns a vector of coefficients of thermal dilatation in direction of each material principal (local) axis.

Parameters

answer	Vector of thermal dilatation coefficients.
gp	Integration point.
tStep	Time step (most models are able to respond only when tStep is current time step).

Reimplemented from oofem::StructuralMaterial.

Definition at line 241 of file isolinearelasticmaterial.C.

References oofem::FloatArray::at(), give(), oofem::FloatArray::resize(), tAlpha, and oofem::FloatArray::zero().

Referenced by oofem::DruckerPragerPlasticitySM::giveThermalDilatationVector(), oofem::DustMaterial::giveThermalDilatationVector(), and ~IsotropicLinearElasticMaterial().

double oofem::IsotropicLinearElasticMaterial::giveYoungsModulus ( )

inline

Returns Young's modulus.

Definition at line 124 of file isolinearelasticmaterial.h.

References E.

Referenced by oofem::DustMaterial::computeAndSetBulkAndShearModuli(), oofem::FRCFCM::computeD2ModulusForCrack(), oofem::FRCFCM::computeOverallElasticStiffness(), oofem::FCMMaterial::computeOverallElasticStiffness(), oofem::FRCFCM::estimateD2ModulusForCrack(), oofem::DustMaterial::give3dMaterialStiffnessMatrix(), oofem::J2plasticMaterial::giveInputRecord(), oofem::AnisotropicDamageMaterial::initializeFrom(), oofem::FRCFCM::isStrengthExceeded(), and oofem::FRCFCM::maxShearStress().

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

virtual

Initializes receiver according to object description stored in input record.

The E modulus (keyword "E"), Poisson ratio ("nu") and coefficient of thermal dilatation alpha ("talpha") are read. The parent class instanciateFrom method is called.

Reimplemented from oofem::LinearElasticMaterial.

Definition at line 60 of file isolinearelasticmaterial.C.

References _IFT_IsotropicLinearElasticMaterial_e, _IFT_IsotropicLinearElasticMaterial_n, _IFT_IsotropicLinearElasticMaterial_talpha, oofem::Dictionary::add(), E, G, oofem::LinearElasticMaterial::initializeFrom(), IR_GIVE_FIELD, nu, oofem::Material::propertyDictionary, and tAlpha.