General purpose Plane stress structural element evaluator. More...

#include <planestresselementevaluator.h>

Inheritance diagram for oofem::PlaneStressStructuralElementEvaluator:

Collaboration diagram for oofem::PlaneStressStructuralElementEvaluator:

Public Member Functions
	PlaneStressStructuralElementEvaluator ()

Protected Member Functions
virtual void	computeNMatrixAt (FloatMatrix &answer, GaussPoint *gp)
	Assemble interpolation matrix at given IP. More...

virtual void	computeBMatrixAt (FloatMatrix &answer, GaussPoint *gp)
	Assembles the strain-displacement matrix of the receiver at given integration point. More...

virtual double	computeVolumeAround (GaussPoint *gp)

virtual void	computeStressVector (FloatArray &answer, const FloatArray &strain, GaussPoint gp, TimeStep tStep)
	Computes the stress vector. More...

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

void	giveDofManDofIDMask (int inode, IntArray &answer) const

Protected Member Functions inherited from oofem::StructuralElementEvaluator
	StructuralElementEvaluator ()

virtual	~StructuralElementEvaluator ()

virtual void	giveCharacteristicMatrix (FloatMatrix &answer, CharType mtrx, TimeStep *tStep)

virtual void	giveCharacteristicVector (FloatArray &answer, CharType type, ValueModeType mode, TimeStep *tStep)

virtual IntegrationRule *	giveMassMtrxIntegrationRule ()
	Returns the integration rule for mass matrices, if relevant. More...

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

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

virtual Element *	giveElement ()=0

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

virtual void	giveInternalForcesVector (FloatArray &answer, TimeStep *tStep, bool useUpdatedGpRecord=false)

void	computeVectorOf (ValueModeType u, TimeStep *tStep, FloatArray &answer)

void	computeVectorOf (PrimaryField &field, const IntArray &dofIdMask, ValueModeType u, TimeStep *tStep, FloatArray &answer)

bool	isActivated (TimeStep *tStep)

void	updateInternalState (TimeStep *tStep)

void	computeStrainVector (FloatArray &answer, GaussPoint gp, TimeStep tStep, FloatArray &u)
	Optimized version, allowing to pass element displacements as parameter. More...

virtual int	giveIntegrationElementLocalCodeNumbers (IntArray &answer, Element elem, IntegrationRule ie)
	Assembles the local element 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...

Additional Inherited Members
Protected Attributes inherited from oofem::StructuralElementEvaluator
FloatMatrix	rotationMatrix

int	rotationMatrixDefined
	Flag indicating if transformation matrix has been already computed. More...

Detailed Description

General purpose Plane stress structural element evaluator.

Definition at line 44 of file planestresselementevaluator.h.

Constructor & Destructor Documentation

oofem::PlaneStressStructuralElementEvaluator::PlaneStressStructuralElementEvaluator ( )

inline

Definition at line 47 of file planestresselementevaluator.h.

References computeBMatrixAt(), computeConstitutiveMatrixAt(), computeNMatrixAt(), computeStressVector(), and computeVolumeAround().

Member Function Documentation

void oofem::PlaneStressStructuralElementEvaluator::computeBMatrixAt	(	FloatMatrix &	answer,
		GaussPoint *	gp
	)

protectedvirtual

Assembles the strain-displacement matrix of the receiver at given integration point.

In case of IGAElements, B is assumed to contain only contribution from nonzero interpolation functions.

Implements oofem::StructuralElementEvaluator.

Definition at line 58 of file planestresselementevaluator.C.

References oofem::FloatMatrix::at(), oofem::FEInterpolation::evaldNdx(), oofem::GaussPoint::giveElement(), oofem::GaussPoint::giveIntegrationRule(), oofem::Element::giveInterpolation(), oofem::IntegrationRule::giveKnotSpan(), oofem::GaussPoint::giveNaturalCoordinates(), oofem::FloatMatrix::giveNumberOfRows(), oofem::FloatMatrix::resize(), and oofem::FloatMatrix::zero().

Referenced by PlaneStressStructuralElementEvaluator().

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

protectedvirtual

Computes constitutive matrix of receiver.

Parameters

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

Implements oofem::StructuralElementEvaluator.

Definition at line 100 of file planestresselementevaluator.C.

References oofem::Element::giveCrossSection(), and oofem::StructuralElementEvaluator::giveElement().

Referenced by PlaneStressStructuralElementEvaluator().

void oofem::PlaneStressStructuralElementEvaluator::computeNMatrixAt	(	FloatMatrix &	answer,
		GaussPoint *	gp
	)

protectedvirtual

Assemble interpolation matrix at given IP.

In case of IGAElements, N is assumed to contain only nonzero interpolation functions.

Implements oofem::StructuralElementEvaluator.

Definition at line 50 of file planestresselementevaluator.C.

References oofem::FloatMatrix::beNMatrixOf(), oofem::FEInterpolation::evalN(), oofem::GaussPoint::giveElement(), oofem::GaussPoint::giveIntegrationRule(), oofem::Element::giveInterpolation(), oofem::IntegrationRule::giveKnotSpan(), oofem::GaussPoint::giveNaturalCoordinates(), and N.

Referenced by PlaneStressStructuralElementEvaluator().

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