This class implements a boundary load (force, moment,...) that acts directly on a boundary of some finite element (on side, face, ..). More...

#include <constantsurfaceload.h>

Inheritance diagram for oofem::ConstantSurfaceLoad:

Collaboration diagram for oofem::ConstantSurfaceLoad:

Public Member Functions
	ConstantSurfaceLoad (int i, Domain *d)

virtual void	computeValueAt (FloatArray &answer, TimeStep *tStep, const FloatArray &coords, ValueModeType mode)
	Computes components values of load at given point - global coordinates (coordinates given). More...

virtual int	giveApproxOrder ()

void	updateLoad (const FloatArray &newValue)
	Sets a new load vector. 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 bcGeomType	giveBCGeoType () const
	Returns geometry character of boundary condition. More...

virtual const char *	giveClassName () const

virtual const char *	giveInputRecordName () const

double	giveLoadOffset ()

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

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

virtual CoordSystType	giveCoordSystMode ()
	Returns receiver's coordinate system. More...

virtual bcType	giveType () const
	Returns receiver load type. More...

virtual double	giveProperty (int aProperty, TimeStep *tStep, const std::map< std::string, FunctionArgument > &valDict)

virtual double	giveProperty (int aProperty, TimeStep *tStep)
	Returns the value of a property 'aProperty'. More...

virtual double	giveTemperOffset (void)
	Return temperature offset. More...

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

virtual	~Load ()
	Destructor. More...

virtual void	computeValues (FloatArray &answer, TimeStep *tStep, const FloatArray &coords, const IntArray &dofids, ValueModeType mode)
	Computes components values for specified dof ids. More...

int	isDofExcluded (int index)
	Returns the value of dofExcludeMask corresponding to given index. More...

virtual void	scale (double s)
	Scales the receiver according to given value. More...

virtual FormulationType	giveFormulationType ()
	Specifies is load should take local or global coordinates. More...

const FloatArray &	giveComponentArray () const

void	setComponentArray (FloatArray &arry)

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

virtual	~GeneralBoundaryCondition ()
	Destructor. More...

int	giveSetNumber ()
	Gives the set number which boundary condition is applied to. More...

virtual int	giveNumberOfInternalDofManagers ()
	Gives the number of internal dof managers. More...

virtual DofManager *	giveInternalDofManager (int i)
	Gives an internal dof manager from receiver. More...

Function *	giveTimeFunction ()

virtual bcValType	giveBCValType () const
	Returns receiver load type. More...

virtual bool	isImposed (TimeStep *tStep)
	Returns nonzero if receiver representing BC is imposed at given time, otherwise returns zero. More...

virtual const IntArray &	giveDofIDs () const
	Array with default dofs which b.c. More...

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

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

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

Private Member Functions
virtual void	computeNArray (FloatArray &answer, const FloatArray &coords) const
	Abstract function, for computing approximation matrix of receiver at given point. More...

Private Attributes
double	loadOffset

Additional Inherited Members
Public Types inherited from oofem::BoundaryLoad
enum	BL_CoordSystType { BL_GlobalMode, BL_LocalMode, BL_UpdatedGlobalMode }
	Load coordinate system type. More...

Public Types inherited from oofem::Load
enum	CoordSystType { CST_Global, CST_Local, CST_UpdatedGlobal }
	Load coordinate system type. More...

enum	FormulationType { FT_Entity, FT_Global }
	Type determining the type of formulation (entity local or global one). More...

Public Attributes inherited from oofem::BoundaryLoad
CoordSystType	CST_UpdatedGlobal

ScalarFunction	propertyMultExpr
	Expression to multiply all properties. More...

Public Attributes inherited from oofem::Load
bool	reference

Protected Member Functions inherited from oofem::BoundaryLoad
virtual void	computeComponentArrayAt (FloatArray &answer, TimeStep *tStep, ValueModeType mode)
	Returns array of load "vertex" values evaluated at given time. More...

Protected Attributes inherited from oofem::BoundaryLoad
bcType	lType
	Load type (its physical meaning). More...

CoordSystType	coordSystemType
	Load coordinate system. More...

Dictionary	propertyDictionary
	Additional b.c properties. More...

Dictionary	propertyTimeFunctDictionary
	Optional time-functions for properties. More...

double	temperOffset
	Temperature offset with regards to Kelvin. Default is 273.15. More...

Protected Attributes inherited from oofem::Load
FloatArray	componentArray
	Components of boundary condition. More...

IntArray	dofExcludeMask
	The load is specified for all dofs of object to which is associated. More...

Protected Attributes inherited from oofem::GeneralBoundaryCondition
int	timeFunction
	Associated load time function. More...

bcValType	valType
	Physical meaning of BC value. More...

IntArray	dofs
	Dofs that b.c. is applied to (relevant for Dirichlet type b.c.s). More...

int	isImposedTimeFunction
	Zero by default - the BC is than always imposed. More...

int	set
	Set number for boundary condition to be applied to. 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...

Detailed Description

This class implements a boundary load (force, moment,...) that acts directly on a boundary of some finite element (on side, face, ..).

A boundary load is usually attribute of one or more elements.

The boundary load describes its geometry and values (it is assumed, that user will specify all necessary dofs) on element boundary using isoparametric approximation. Elements can request the order of approximation (for setting up the appropriate integration rule order) and the array of values (for each dof) at specific integration point on the boundary.

Elements must take care, on which boundary the load acts on (side number, ...).

For some elements it may be better to obtain "vertex values" of boundary load to compute load vector directly using exact formulae.

This class is not restricted to structural problems. For example, in thermal analysis, a boundary load load would be a heat source.

Definition at line 68 of file constantsurfaceload.h.

Constructor & Destructor Documentation

oofem::ConstantSurfaceLoad::ConstantSurfaceLoad	(	int	i,
		Domain *	d
	)

Definition at line 45 of file constantsurfaceload.C.

References loadOffset.

Member Function Documentation

virtual void oofem::ConstantSurfaceLoad::computeNArray	(	FloatArray &	answer,
		const FloatArray &	coords
	)		const

inlineprivatevirtual

Abstract function, for computing approximation matrix of receiver at given point.

The product of approximation matrix with "vertex" values array attribute will produce load components in given point.

Parameters

answer	Approximation vector.
coords	Global integration point coordinates.

Implements oofem::BoundaryLoad.

Definition at line 92 of file constantsurfaceload.h.

References oofem::FloatArray::clear().

void oofem::ConstantSurfaceLoad::computeValueAt	(	FloatArray &	answer,
		TimeStep *	tStep,
		const FloatArray &	coords,
		ValueModeType	mode
	)

virtual

Computes components values of load at given point - global coordinates (coordinates given).

Parameters

answer	Component values at given point and time.
tStep	Time step representing time.
coords	Global (or local) problem coordinates, which are used to evaluate components values.
mode	Determines response mode.

Reimplemented from oofem::BoundaryLoad.

Definition at line 68 of file constantsurfaceload.C.

References oofem::FloatArray::beScaled(), oofem::Load::componentArray, oofem::Function::evaluate(), oofem::GeneralBoundaryCondition::giveTimeFunction(), and OOFEM_ERROR.

virtual int oofem::ConstantSurfaceLoad::giveApproxOrder ( )

inlinevirtual

Returns: Approximation order of load geometry.

Implements oofem::BoundaryLoad.

Definition at line 75 of file constantsurfaceload.h.

virtual bcGeomType oofem::ConstantSurfaceLoad::giveBCGeoType ( ) const

inlinevirtual

Returns geometry character of boundary condition.

For available values see cltypes.h file. Derived classes should always overload, default implementation returns UnknownLoadGT value.

Reimplemented from oofem::GeneralBoundaryCondition.

Definition at line 85 of file constantsurfaceload.h.

References oofem::SurfaceLoadBGT.

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

inlinevirtual

Returns: Class name of the receiver.

Implements oofem::FEMComponent.

Definition at line 87 of file constantsurfaceload.h.

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

virtual

Setups the input record string of receiver.

Parameters

input Dynamic input record to be filled by receiver.

Reimplemented from oofem::BoundaryLoad.

Definition at line 61 of file constantsurfaceload.C.

References _IFT_ConstantSurfaceLoad_LoadOffset, oofem::BoundaryLoad::giveInputRecord(), loadOffset, and oofem::DynamicInputRecord::setField().

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

inlinevirtual

Returns: Input record name of the receiver.

Implements oofem::FEMComponent.

Definition at line 88 of file constantsurfaceload.h.

References _IFT_ConstantSurfaceLoad_Name.

double oofem::ConstantSurfaceLoad::giveLoadOffset ( )

inline

Definition at line 89 of file constantsurfaceload.h.

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

virtual

Initializes receiver according to object description stored in input record.

Reads number of dofs into nDofs attribute (i.e. the number of dofs, which are on loaded entity), its loadType into loadType attribute and coordinate system type into csType attribute.

Reimplemented from oofem::BoundaryLoad.

Definition at line 51 of file constantsurfaceload.C.

References _IFT_ConstantSurfaceLoad_LoadOffset, oofem::BoundaryLoad::initializeFrom(), IR_GIVE_OPTIONAL_FIELD, oofem::IRRT_OK, and loadOffset.

void oofem::ConstantSurfaceLoad::updateLoad ( const FloatArray & newValue )

inline

Sets a new load vector.

Parameters

newValue New load.

Definition at line 81 of file constantsurfaceload.h.

Member Data Documentation

double oofem::ConstantSurfaceLoad::loadOffset

private

Definition at line 93 of file constantsurfaceload.h.

Referenced by ConstantSurfaceLoad(), giveInputRecord(), and initializeFrom().

The documentation for this class was generated from the following files:

Public Member Functions

Private Member Functions

Private Attributes

Additional Inherited Members

Detailed Description

Constructor & Destructor Documentation

Member Function Documentation

Member Data Documentation