#include <graddpelement.h>

Inheritance diagram for oofem::GradDpElement:

Collaboration diagram for oofem::GradDpElement:

Public Member Functions
	GradDpElement ()
virtual	~GradDpElement ()

Protected Member Functions
virtual StructuralElement *	giveStructuralElement ()=0
virtual NLStructuralElement *	giveNLStructuralElement ()=0
virtual void	computeNkappaMatrixAt (GaussPoint *gp, FloatArray &answer)=0
virtual void	computeBkappaMatrixAt (GaussPoint *gp, FloatMatrix &answer)=0
void	setDisplacementLocationArray ()
void	setNonlocalLocationArray ()
void	computeStiffnessMatrix (FloatMatrix &, MatResponseMode, TimeStep *)
void	computeStiffnessMatrix_uu (FloatMatrix &, MatResponseMode, TimeStep *)
void	computeStiffnessMatrix_uk (FloatMatrix &, MatResponseMode, TimeStep *)
void	computeStiffnessMatrix_kk (FloatMatrix &, MatResponseMode, TimeStep *)
void	computeStiffnessMatrix_ku (FloatMatrix &, MatResponseMode, TimeStep *)
void	computeDisplacementDegreesOfFreedom (FloatArray &answer, TimeStep *tStep)
void	computeNonlocalDegreesOfFreedom (FloatArray &answer, TimeStep *tStep)
void	computeNonlocalGradient (FloatArray &answer, GaussPoint gp, TimeStep tStep)
void	computeLocalStrainVector (FloatArray &answer, GaussPoint gp, TimeStep tStep)
void	computeDeformationGradientVector (FloatArray &answer, GaussPoint gp, TimeStep tStep)
void	computeNonlocalCumulatedStrain (double &answer, GaussPoint gp, TimeStep tStep)
void	giveInternalForcesVector (FloatArray &answer, TimeStep *tStep, int useUpdatedGpRecord)
void	giveLocalInternalForcesVector (FloatArray &answer, TimeStep *tStep, int useUpdatedGpRecord)
void	giveNonlocalInternalForcesVector (FloatArray &answer, TimeStep *tStep, int useUpdatedGpRecord)
void	computeStressVectorAndLocalCumulatedStrain (FloatArray &answer, double localCumulatedPlasticStrain, GaussPoint gp, TimeStep tStep)
void	computeDistanceToBoundary ()

Protected Attributes
int	nPrimNodes
int	nPrimVars
int	nSecNodes
int	nSecVars
IntArray	locU
IntArray	locK
int	totalSize
int	nlSize
int	locSize

Detailed Description

Abstract class for gradient formulation of coupled damage-plasticity model(GradDp). Yield function is formulated in the effective stress space and damage is driven by the nonlocal(over-nonlocal) cumulated plastic strain. The new nonlocal degrees of freedom (with the meaning of the nonlocal cumulated plastic strain) are introduced with lower order of approximation functions than the displacement field to avoid spurious stress oscillations

Definition at line 48 of file graddpelement.h.

Constructor & Destructor Documentation

◆ GradDpElement()

oofem::GradDpElement::GradDpElement ( )

Definition at line 58 of file graddpelement.C.

◆ ~GradDpElement()

virtual oofem::GradDpElement::~GradDpElement ( )

inlinevirtual

Definition at line 57 of file graddpelement.h.

Member Function Documentation

◆ computeBkappaMatrixAt()

virtual void oofem::GradDpElement::computeBkappaMatrixAt	(	GaussPoint *	gp,
		FloatMatrix &	answer )

protectedpure virtual

Implemented in oofem::QPlaneStrainGrad.

Referenced by computeNonlocalGradient(), computeStiffnessMatrix_kk(), and computeStiffnessMatrix_ku().

◆ computeDeformationGradientVector()

void oofem::GradDpElement::computeDeformationGradientVector	(	FloatArray &	answer,
		GaussPoint *	gp,
		TimeStep *	tStep )

protected

Definition at line 144 of file graddpelement.C.

References oofem::FloatArray::at(), oofem::FloatArray::beProductOf(), oofem::NLStructuralElement::computeBHmatrixAt(), computeDisplacementDegreesOfFreedom(), oofem::GaussPoint::giveMaterialMode(), giveNLStructuralElement(), and OOFEM_ERROR.

Referenced by computeStressVectorAndLocalCumulatedStrain().

◆ computeDisplacementDegreesOfFreedom()

void oofem::GradDpElement::computeDisplacementDegreesOfFreedom	(	FloatArray &	answer,
		TimeStep *	tStep )

protected

Definition at line 86 of file graddpelement.C.

References giveStructuralElement().

Referenced by computeDeformationGradientVector(), and computeLocalStrainVector().

◆ computeDistanceToBoundary()

void oofem::GradDpElement::computeDistanceToBoundary ( )

protected

◆ computeLocalStrainVector()

void oofem::GradDpElement::computeLocalStrainVector	(	FloatArray &	answer,
		GaussPoint *	gp,
		TimeStep *	tStep )

protected

Definition at line 132 of file graddpelement.C.

References oofem::FloatArray::beProductOf(), oofem::StructuralElement::computeBmatrixAt(), computeDisplacementDegreesOfFreedom(), and giveNLStructuralElement().

Referenced by computeStressVectorAndLocalCumulatedStrain().

◆ computeNkappaMatrixAt()

virtual void oofem::GradDpElement::computeNkappaMatrixAt	(	GaussPoint *	gp,
		FloatArray &	answer )

protectedpure virtual

Implemented in oofem::QPlaneStrainGrad.

Referenced by computeNonlocalCumulatedStrain(), computeStiffnessMatrix_kk(), computeStiffnessMatrix_ku(), computeStiffnessMatrix_uk(), and giveNonlocalInternalForcesVector().

◆ computeNonlocalCumulatedStrain()

void oofem::GradDpElement::computeNonlocalCumulatedStrain	(	double &	answer,
		GaussPoint *	gp,
		TimeStep *	tStep )

protected

Definition at line 177 of file graddpelement.C.

References computeNkappaMatrixAt(), computeNonlocalDegreesOfFreedom(), and oofem::FloatArray::dotProduct().

Referenced by computeStressVectorAndLocalCumulatedStrain().

◆ computeNonlocalDegreesOfFreedom()

void oofem::GradDpElement::computeNonlocalDegreesOfFreedom	(	FloatArray &	answer,
		TimeStep *	tStep )

protected

Definition at line 91 of file graddpelement.C.

References giveStructuralElement().

Referenced by computeNonlocalCumulatedStrain(), computeNonlocalGradient(), and giveNonlocalInternalForcesVector().

◆ computeNonlocalGradient()

void oofem::GradDpElement::computeNonlocalGradient	(	FloatArray &	answer,
		GaussPoint *	gp,
		TimeStep *	tStep )

protected

Definition at line 188 of file graddpelement.C.

References oofem::FloatArray::beProductOf(), computeBkappaMatrixAt(), and computeNonlocalDegreesOfFreedom().

Referenced by computeStiffnessMatrix_ku().

◆ computeStiffnessMatrix()

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

protected

Definition at line 491 of file graddpelement.C.

References oofem::FloatMatrix::assemble(), computeStiffnessMatrix_kk(), computeStiffnessMatrix_ku(), computeStiffnessMatrix_uk(), computeStiffnessMatrix_uu(), locK, locU, oofem::FloatMatrix::resize(), setDisplacementLocationArray(), setNonlocalLocationArray(), totalSize, and oofem::FloatMatrix::zero().

◆ computeStiffnessMatrix_kk()

void oofem::GradDpElement::computeStiffnessMatrix_kk	(	FloatMatrix &	answer,
		MatResponseMode	rMode,
		TimeStep *	tStep )

protected

Definition at line 666 of file graddpelement.C.

References oofem::FloatMatrix::at(), oofem::FloatMatrix::beProductOf(), oofem::FloatMatrix::clear(), computeBkappaMatrixAt(), computeNkappaMatrixAt(), oofem::Element::computeVolumeAround(), oofem::Element::giveIntegrationRule(), oofem::StructuralCrossSection::giveMaterialInterface(), oofem::StructuralElement::giveStructuralCrossSection(), giveStructuralElement(), OOFEM_ERROR, and oofem::FloatMatrix::plusProductUnsym().

Referenced by computeStiffnessMatrix(), and giveNonlocalInternalForcesVector().

◆ computeStiffnessMatrix_ku()

void oofem::GradDpElement::computeStiffnessMatrix_ku	(	FloatMatrix &	answer,
		MatResponseMode	rMode,
		TimeStep *	tStep )

protected

Todo: This can't possibly work if this is uncommented (!) / Mikael

Todo: This can't possibly work if this is uncommented (!) / Mikael

Definition at line 562 of file graddpelement.C.

References oofem::FloatMatrix::add(), oofem::AL, oofem::FloatMatrix::at(), oofem::FloatMatrix::beProductOf(), oofem::FloatMatrix::beTProductOf(), oofem::FloatMatrix::clear(), oofem::NLStructuralElement::computeBHmatrixAt(), computeBkappaMatrixAt(), oofem::StructuralElement::computeBmatrixAt(), computeNkappaMatrixAt(), computeNonlocalGradient(), oofem::Element::computeVolumeAround(), oofem::FEMComponent::domain, oofem::Domain::giveEngngModel(), oofem::EngngModel::giveFormulation(), oofem::NLStructuralElement::giveGeometryMode(), oofem::Element::giveIntegrationRule(), oofem::StructuralCrossSection::giveMaterialInterface(), giveNLStructuralElement(), oofem::StructuralElement::giveStructuralCrossSection(), OOFEM_ERROR, and oofem::FloatMatrix::plusProductUnsym().

Referenced by computeStiffnessMatrix().

◆ computeStiffnessMatrix_uk()

void oofem::GradDpElement::computeStiffnessMatrix_uk	(	FloatMatrix &	answer,
		MatResponseMode	rMode,
		TimeStep *	tStep )

protected

◆ computeStiffnessMatrix_uu()

void oofem::GradDpElement::computeStiffnessMatrix_uu	(	FloatMatrix &	answer,
		MatResponseMode	rMode,
		TimeStep *	tStep )

protected

Definition at line 513 of file graddpelement.C.

References oofem::FloatMatrix::add(), oofem::AL, oofem::FloatMatrix::beProductOf(), oofem::FloatMatrix::clear(), oofem::NLStructuralElement::computeBHmatrixAt(), oofem::StructuralElement::computeBmatrixAt(), oofem::NLStructuralElement::computeInitialStressMatrix(), oofem::Element::computeVolumeAround(), oofem::FEMComponent::domain, oofem::Element::giveCrossSection(), oofem::Domain::giveEngngModel(), oofem::EngngModel::giveFormulation(), oofem::NLStructuralElement::giveGeometryMode(), oofem::Element::giveIntegrationRule(), oofem::StructuralCrossSection::giveMaterialInterface(), giveNLStructuralElement(), oofem::StructuralElement::giveStructuralCrossSection(), oofem::CrossSection::isCharacteristicMtrxSymmetric(), OOFEM_ERROR, oofem::FloatMatrix::plusProductSymmUpper(), oofem::FloatMatrix::plusProductUnsym(), and oofem::FloatMatrix::symmetrized().

Referenced by computeStiffnessMatrix().

◆ computeStressVectorAndLocalCumulatedStrain()

void oofem::GradDpElement::computeStressVectorAndLocalCumulatedStrain	(	FloatArray &	answer,
		double	localCumulatedPlasticStrain,
		GaussPoint *	gp,
		TimeStep *	tStep )

protected

Definition at line 97 of file graddpelement.C.

References computeDeformationGradientVector(), computeLocalStrainVector(), computeNonlocalCumulatedStrain(), oofem::FEMComponent::giveDomain(), oofem::Domain::giveEngngModel(), oofem::EngngModel::giveFormulation(), oofem::NLStructuralElement::giveGeometryMode(), oofem::StructuralCrossSection::giveMaterialInterface(), giveNLStructuralElement(), oofem::StructuralElement::giveStructuralCrossSection(), OOFEM_ERROR, and oofem::TL.

Referenced by giveNonlocalInternalForcesVector().

◆ giveInternalForcesVector()

void oofem::GradDpElement::giveInternalForcesVector	(	FloatArray &	answer,
		TimeStep *	tStep,
		int	useUpdatedGpRecord )

protected

Todo: This code relies on locU and locK already exists. Design seems highly unsafe. Instead locU and locK shoulld be statically determined (cf. with the Taylor-Hood elements) / Mikael

Definition at line 328 of file graddpelement.C.

References oofem::FloatArray::assemble(), giveLocalInternalForcesVector(), giveNonlocalInternalForcesVector(), locK, locSize, locU, nlSize, oofem::FloatArray::resize(), totalSize, and oofem::FloatArray::zero().