#include <perfectlyplasticmaterial.h>

Inheritance diagram for oofem::PerfectlyPlasticMaterial:

Collaboration diagram for oofem::PerfectlyPlasticMaterial:

Public Member Functions
	PerfectlyPlasticMaterial (int n, Domain *d)
virtual	~PerfectlyPlasticMaterial ()
void	giveRealStressVector (FloatArray &answer, GaussPoint gp, const FloatArray &reducedStrain, TimeStep tStep) const override
FloatArrayF< 6 >	giveRealStressVector_3d (const FloatArrayF< 6 > &strain, GaussPoint gp, TimeStep tStep) const override
	Default implementation relies on giveRealStressVector for second Piola-Kirchoff stress.
FloatArrayF< 4 >	giveRealStressVector_PlaneStrain (const FloatArrayF< 4 > &strain, GaussPoint gp, TimeStep tStep) const override
	Default implementation relies on giveRealStressVector_3d.
FloatArrayF< 3 >	giveRealStressVector_PlaneStress (const FloatArrayF< 3 > &strain, GaussPoint gp, TimeStep tStep) const override
	Default implementation relies on giveRealStressVector_StressControl.
FloatArrayF< 1 >	giveRealStressVector_1d (const FloatArrayF< 1 > &strain, GaussPoint gp, TimeStep tStep) const override
	Default implementation relies on giveRealStressVector_StressControl.
FloatArrayF< 2 >	giveRealStressVector_2dBeamLayer (const FloatArrayF< 2 > &strain, GaussPoint gp, TimeStep tStep) const override
	Default implementation relies on giveRealStressVector_StressControl.
FloatArrayF< 5 >	giveRealStressVector_PlateLayer (const FloatArrayF< 5 > &strain, GaussPoint gp, TimeStep tStep) const override
	Default implementation relies on giveRealStressVector_StressControl.
virtual void	updateIfFailure (GaussPoint gp, FloatArray stressVector3d, FloatArray *PlasticStrainVector3d) const
bool	hasMaterialModeCapability (MaterialMode mode) const override
const char *	giveClassName () const override
void	initializeFrom (InputRecord &ir) override
LinearElasticMaterial *	giveLinearElasticMaterial () const
double	give (int aProperty, GaussPoint *gp) const override
FloatMatrixF< 6, 6 >	give3dMaterialStiffnessMatrix (MatResponseMode mode, GaussPoint gp, TimeStep tStep) const override
int	giveIPValue (FloatArray &answer, GaussPoint gp, InternalStateType type, TimeStep tStep) override
std::unique_ptr< MaterialStatus >	CreateStatus (GaussPoint *gp) const override
Public Member Functions inherited from oofem::StructuralMaterial
	StructuralMaterial (int n, Domain *d)
bool	hasMaterialModeCapability (MaterialMode mode) const override
const char *	giveClassName () const override
void	initializeFrom (InputRecord &ir) override
void	giveInputRecord (DynamicInputRecord &input) override
void	giveCharacteristicMatrix (FloatMatrix &answer, MatResponseMode type, GaussPoint gp, TimeStep tStep) const override
	Returns characteristic matrix of the receiver.
void	giveCharacteristicVector (FloatArray &answer, FloatArray &flux, MatResponseMode type, GaussPoint gp, TimeStep tStep) const override
	Returns characteristic vector of the receiver.
virtual void	giveStiffnessMatrix (FloatMatrix &answer, MatResponseMode mode, GaussPoint gp, TimeStep tStep) const
virtual FloatArray	giveRealStressVector_StressControl (const FloatArray &reducedE, const IntArray &strainControl, GaussPoint gp, TimeStep tStep) const
	Iteratively calls giveRealStressVector_3d to find the stress controlled equal to zero·
virtual FloatArray	giveRealStressVector_ShellStressControl (const FloatArray &reducedE, const IntArray &strainControl, GaussPoint gp, TimeStep tStep) const
virtual FloatArrayF< 2 >	giveRealStressVector_Warping (const FloatArrayF< 2 > &reducedE, GaussPoint gp, TimeStep tStep) const
	Default implementation relies on giveRealStressVector_StressControl.
virtual FloatArrayF< 3 >	giveRealStressVector_Fiber (const FloatArrayF< 3 > &reducedE, GaussPoint gp, TimeStep tStep) const
	Default implementation relies on giveRealStressVector_StressControl.
virtual FloatArrayF< 3 >	giveRealStressVector_2dPlateSubSoil (const FloatArrayF< 3 > &reducedE, GaussPoint gp, TimeStep tStep) const
	Default implementation is not provided.
virtual FloatArrayF< 6 >	giveRealStressVector_3dBeamSubSoil (const FloatArrayF< 6 > &reducedE, GaussPoint gp, TimeStep tStep) const
virtual FloatArrayF< 9 >	giveFirstPKStressVector_3d (const FloatArrayF< 9 > &vF, GaussPoint gp, TimeStep tStep) const
	Default implementation relies on giveRealStressVector for second Piola-Kirchoff stress.
virtual FloatArrayF< 5 >	giveFirstPKStressVector_PlaneStrain (const FloatArrayF< 5 > &vF, GaussPoint gp, TimeStep tStep) const
	Default implementation relies on giveFirstPKStressVector_3d.
virtual FloatArray	giveFirstPKStressVector_StressControl (const FloatArray &reducedvF, const IntArray &FControl, GaussPoint gp, TimeStep tStep) const
	Iteratively calls giveRealStressVector_3d to find the stress controlled equal to zero·
virtual FloatArrayF< 4 >	giveFirstPKStressVector_PlaneStress (const FloatArrayF< 4 > &vF, GaussPoint gp, TimeStep tStep) const
	Default implementation relies on giveFirstPKStressVector_StressControl.
virtual FloatArrayF< 1 >	giveFirstPKStressVector_1d (const FloatArrayF< 1 > &vF, GaussPoint gp, TimeStep tStep) const
	Default implementation relies on giveFirstPKStressVector_StressControl.
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	giveEshelbyStressVector_PlaneStrain (FloatArray &answer, GaussPoint gp, const FloatArray &reducedF, TimeStep tStep)
virtual FloatArrayF< 6 >	giveThermalDilatationVector (GaussPoint gp, TimeStep tStep) const
double	giveReferenceTemperature ()
virtual FloatArray	computeStressIndependentStrainVector (GaussPoint gp, TimeStep tStep, ValueModeType mode) const
FloatArrayF< 6 >	computeStressIndependentStrainVector_3d (GaussPoint gp, TimeStep tStep, ValueModeType mode) const
virtual void	giveStiffnessMatrix_dPdF (FloatMatrix &answer, MatResponseMode mode, GaussPoint gp, TimeStep tStep)
virtual FloatMatrixF< 9, 9 >	give3dMaterialStiffnessMatrix_dPdF (MatResponseMode mode, GaussPoint gp, TimeStep tStep) const
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) const
int	setIPValue (const FloatArray &value, GaussPoint *gp, InternalStateType type) override
int	giveIPValue (FloatArray &answer, GaussPoint gp, InternalStateType type, TimeStep tStep) override
virtual FloatMatrixF< 4, 4 >	givePlaneStressStiffnessMatrix_dPdF (MatResponseMode mmode, GaussPoint gp, TimeStep tStep) const
virtual void	givePlaneStressStiffMtrx_dCde (FloatMatrix &answer, MatResponseMode mmode, GaussPoint gp, TimeStep tStep)
virtual FloatMatrixF< 5, 5 >	givePlaneStrainStiffnessMatrix_dPdF (MatResponseMode mmode, GaussPoint gp, TimeStep tStep) const
virtual void	givePlaneStrainStiffMtrx_dCde (FloatMatrix &answer, MatResponseMode mmode, GaussPoint gp, TimeStep tStep)
virtual FloatMatrixF< 1, 1 >	give1dStressStiffnessMatrix_dPdF (MatResponseMode mmode, GaussPoint gp, TimeStep tStep) const
virtual void	give1dStressStiffMtrx_dCde (FloatMatrix &answer, MatResponseMode mmode, GaussPoint gp, TimeStep tStep)
virtual FloatMatrixF< 3, 3 >	giveFiberStiffMtrx (MatResponseMode mmode, GaussPoint gp, TimeStep tStep) const
virtual FloatMatrixF< 3, 3 >	give2dPlateSubSoilStiffMtrx (MatResponseMode mmode, GaussPoint gp, TimeStep tStep) const
virtual FloatMatrixF< 6, 6 >	give3dBeamSubSoilStiffMtrx (MatResponseMode mmode, GaussPoint gp, TimeStep tStep) const
Public Member Functions inherited from oofem::Material
	Material (int n, Domain *d)
virtual	~Material ()=default
	Destructor.
virtual bool	isCharacteristicMtrxSymmetric (MatResponseMode rMode) const
virtual double	giveCharacteristicValue (MatResponseMode type, GaussPoint gp, TimeStep tStep) const
	Returns characteristic value of the receiver.
virtual bool	hasProperty (int aProperty, GaussPoint *gp) const
virtual void	modifyProperty (int aProperty, double value, GaussPoint *gp)
double	giveCastingTime () const
virtual bool	isActivated (TimeStep *tStep) const
virtual bool	hasCastingTimeSupport () const
void	printYourself () override
	Prints receiver state on stdout. Useful for debugging.
virtual void	saveIPContext (DataStream &stream, ContextMode mode, GaussPoint *gp)
virtual void	restoreIPContext (DataStream &stream, ContextMode mode, GaussPoint *gp)
int	checkConsistency () override
virtual void	restoreConsistency (GaussPoint *gp)
virtual int	initMaterial (Element *element)
virtual MaterialStatus *	giveStatus (GaussPoint *gp) const
virtual int	packUnknowns (DataStream &buff, TimeStep tStep, GaussPoint ip)
virtual int	unpackAndUpdateUnknowns (DataStream &buff, TimeStep tStep, GaussPoint ip)
virtual int	estimatePackSize (DataStream &buff, GaussPoint *ip)
virtual double	predictRelativeComputationalCost (GaussPoint *gp)
virtual double	predictRelativeRedistributionCost (GaussPoint *gp)
virtual void	initTempStatus (GaussPoint *gp) const
void	saveContext (DataStream &stream, ContextMode mode) override
void	restoreContext (DataStream &stream, ContextMode mode) override
Public Member Functions inherited from oofem::FEMComponent
	FEMComponent (int n, Domain *d)
virtual	~FEMComponent ()=default
	Virtual destructor.
virtual const char *	giveInputRecordName () const =0
Domain *	giveDomain () const
virtual void	setDomain (Domain *d)
int	giveNumber () const
void	setNumber (int num)
virtual void	updateLocalNumbering (EntityRenumberingFunctor &f)
virtual void	initializeFrom (InputRecord &ir, int priority)
virtual void	initializeFinish ()
virtual void	postInitialize ()
	Performs post initialization steps. Called after all components are created and initialized.
virtual void	printOutputAt (FILE file, TimeStep tStep)
virtual Interface *	giveInterface (InterfaceType t)
std::string	errorInfo (const char *func) const
	Returns string for prepending output (used by error reporting macros).

Protected Member Functions
virtual void	giveMaterialStiffnessMatrix (FloatMatrix &answer, MatResponseMode mode, GaussPoint gp, TimeStep tStep) const
virtual void	giveEffectiveMaterialStiffnessMatrix (FloatMatrix &answer, MatResponseMode mode, GaussPoint gp, TimeStep tStep) const
FloatMatrixF< 3, 3 >	givePlaneStressStiffMtrx (MatResponseMode mode, GaussPoint gp, TimeStep tStep) const override
FloatMatrixF< 4, 4 >	givePlaneStrainStiffMtrx (MatResponseMode mode, GaussPoint gp, TimeStep tStep) const override
FloatMatrixF< 1, 1 >	give1dStressStiffMtrx (MatResponseMode mode, GaussPoint gp, TimeStep tStep) const override
FloatMatrixF< 2, 2 >	give2dBeamLayerStiffMtrx (MatResponseMode mode, GaussPoint gp, TimeStep tStep) const override
FloatMatrixF< 5, 5 >	givePlateLayerStiffMtrx (MatResponseMode mode, GaussPoint gp, TimeStep tStep) const override
void	computeTrialStressIncrement (FloatArray &answer, GaussPoint gp, const FloatArray &strainIncrement, TimeStep tStep) const
void	computePlasticStiffnessAt (FloatMatrix &answer, GaussPoint gp, FloatArray currentStressVector, FloatArray currentPlasticStrainVector, FloatArray strainIncrement3d, TimeStep *tStep, double &lambda) const
FloatArray *	GiveStressCorrectionBackToYieldSurface (GaussPoint gp, FloatArray stressVector3d, FloatArray *plasticVector3d) const
virtual double	computeYCValueAt (GaussPoint gp, FloatArray , FloatArray *) const
virtual FloatArray *	GiveYCStressGradient (GaussPoint gp, FloatArray , FloatArray *) const
virtual FloatArray *	GiveLCStressGradient (GaussPoint gp, FloatArray , FloatArray *) const
virtual FloatArray *	GiveYCPlasticStrainGradient (GaussPoint gp, FloatArray , FloatArray *) const
virtual FloatArray *	GiveLCPlasticStrainGradient (GaussPoint gp, FloatArray , FloatArray *) const
virtual void	updateTempYC (GaussPoint gp, FloatArray , FloatArray *) const
virtual void	updateTempLC (GaussPoint gp, FloatArray , FloatArray *) const

Protected Attributes
int	yieldCriteria = 0
int	loadingCriteria = 0
LinearElasticMaterial *	linearElasticMaterial = nullptr
Protected Attributes inherited from oofem::StructuralMaterial
double	referenceTemperature = 0.
	Reference temperature (temperature, when material has been built into structure).
MatResponseMode	SCStiffMode = TangentStiffness
	stifness mode used in stress control
double	SCRelTol = 1.e-3
	relative tolerance for stress control
double	SCAbsTol = 1.e-12
	absolute stress tolerance for stress control
int	SCMaxiter = 100000
	maximum iterations for stress-control
Protected Attributes inherited from oofem::Material
Dictionary	propertyDictionary
double	castingTime
int	preCastingTimeMat
	Material existing before casting time - optional parameter, zero by default.
Protected Attributes inherited from oofem::FEMComponent
int	number
	Component number.
Domain *	domain
	Link to domain object, useful for communicating with other FEM components.

Additional Inherited Members
Static Public Member Functions inherited from oofem::StructuralMaterial
static int	giveSymVI (int ind1, int ind2)
static int	giveVI (int ind1, int ind2)
static FloatMatrixF< 9, 9 >	convert_dSdE_2_dPdF_3D (const FloatMatrixF< 6, 6 > &dSdE, const FloatArrayF< 6 > &S, const FloatArrayF< 9 > &F)
static FloatMatrixF< 5, 5 >	convert_dSdE_2_dPdF_PlaneStrain (const FloatMatrixF< 4, 4 > &dSdE, const FloatArrayF< 4 > &S, const FloatArrayF< 5 > &F)
static FloatMatrixF< 4, 4 >	convert_dSdE_2_dPdF_PlaneStress (const FloatMatrixF< 3, 3 > &dSdE, const FloatArrayF< 3 > &S, const FloatArrayF< 4 > &F)
static FloatMatrixF< 1, 1 >	convert_dSdE_2_dPdF_1D (const FloatMatrixF< 1, 1 > &dSdE, const FloatArrayF< 1 > &S, const FloatArrayF< 1 > &F)
static void	computePrincipalValues (FloatArray &answer, const FloatArray &s, stressStrainPrincMode mode)
	Common functions for convenience.
static FloatArrayF< 3 >	computePrincipalValues (const FloatMatrixF< 3, 3 > &s)
static FloatArrayF< 3 >	computePrincipalValues (double I1, double I2, double I3)
static void	computePrincipalValDir (FloatArray &answer, FloatMatrix &dir, const FloatArray &s, stressStrainPrincMode mode)
static std::pair< FloatArrayF< 3 >, FloatMatrixF< 3, 3 > >	computePrincipalValDir (const FloatMatrixF< 3, 3 > &s)
static FloatArrayF< 6 >	computeDeviator (const FloatArrayF< 6 > &s)
static std::pair< FloatArrayF< 6 >, double >	computeDeviatoricVolumetricSplit (const FloatArrayF< 6 > &s)
static FloatArrayF< 6 >	computeDeviatoricVolumetricSum (const FloatArrayF< 6 > &dev, double mean)
static FloatArrayF< 6 >	applyDeviatoricElasticCompliance (const FloatArrayF< 6 > &stress, double EModulus, double nu)
static FloatArrayF< 6 >	applyDeviatoricElasticCompliance (const FloatArrayF< 6 > &stress, double GModulus)
static FloatArrayF< 6 >	applyDeviatoricElasticStiffness (const FloatArrayF< 6 > &strain, double EModulus, double nu)
static FloatArrayF< 6 >	applyDeviatoricElasticStiffness (const FloatArrayF< 6 > &strain, double GModulus)
static FloatArrayF< 6 >	applyElasticStiffness (const FloatArrayF< 6 > &strain, double EModulus, double nu)
static FloatArrayF< 6 >	applyElasticCompliance (const FloatArrayF< 6 > &stress, double EModulus, double nu)
static double	computeStressNorm (const FloatArrayF< 6 > &stress)
static double	computeFirstInvariant (const FloatArrayF< 6 > &s)
static double	computeSecondStressInvariant (const FloatArrayF< 6 > &s)
static double	computeThirdStressInvariant (const FloatArrayF< 6 > &s)
static double	computeFirstCoordinate (const FloatArrayF< 6 > &s)
static double	computeSecondCoordinate (const FloatArrayF< 6 > &s)
static double	computeThirdCoordinate (const FloatArrayF< 6 > &s)
static int	giveVoigtVectorMask (IntArray &answer, MaterialMode mmode)
static int	giveVoigtSymVectorMask (IntArray &answer, MaterialMode mmode)
static void	giveInvertedVoigtVectorMask (IntArray &answer, MaterialMode mmode)
static int	giveSizeOfVoigtVector (MaterialMode mmode)
static int	giveSizeOfVoigtSymVector (MaterialMode mmode)
static void	giveFullVectorForm (FloatArray &answer, const FloatArray &strainVector, MaterialMode matMode)
	Converts the reduced symmetric Voigt vector (2nd order tensor) to full form.
static void	giveFullVectorFormF (FloatArray &answer, const FloatArray &strainVector, MaterialMode matMode)
	Converts the reduced deformation gradient Voigt vector (2nd order tensor).
static void	giveFullSymVectorForm (FloatArray &answer, const FloatArray &vec, MaterialMode matMode)
	Converts the reduced unsymmetric Voigt vector (2nd order tensor) to full form.
static void	giveReducedVectorForm (FloatArray &answer, const FloatArray &vec, MaterialMode matMode)
	Converts the full symmetric Voigt vector (2nd order tensor) to reduced form.
static void	giveReducedSymVectorForm (FloatArray &answer, const FloatArray &vec, MaterialMode matMode)
	Converts the full unsymmetric Voigt vector (2nd order tensor) to reduced form.
static void	giveFullSymMatrixForm (FloatMatrix &answer, const FloatMatrix &red, MaterialMode matMode)
	Converts the full unsymmetric Voigt matrix (4th order tensor) to reduced form.
static void	giveReducedMatrixForm (FloatMatrix &answer, const FloatMatrix &full, MaterialMode matMode)
	Converts the full symmetric Voigt matrix (4th order tensor) to reduced form.
static void	giveReducedSymMatrixForm (FloatMatrix &answer, const FloatMatrix &full, MaterialMode matMode)
	Converts the full unsymmetric Voigt matrix (4th order tensor) to reduced form.
static FloatArrayF< 6 >	transformStrainVectorTo (const FloatMatrixF< 3, 3 > &base, const FloatArrayF< 6 > &strain, bool transpose=false)
static FloatArrayF< 6 >	transformStressVectorTo (const FloatMatrixF< 3, 3 > &base, const FloatArrayF< 6 > &stress, bool transpose=false)
static double	computeVonMisesStress (const FloatArray &currentStress)
static double	computeVonMisesStress_3D (const FloatArrayF< 6 > &stress)
static double	computeVonMisesStress_PlaneStress (const FloatArrayF< 3 > &stress)
static FloatMatrixF< 6, 6 >	giveStrainVectorTranformationMtrx (const FloatMatrixF< 3, 3 > &base, bool transpose=false)
static FloatMatrixF< 3, 3 >	give2DStrainVectorTranformationMtrx (const FloatMatrixF< 2, 2 > &base, bool transpose=false)
static FloatMatrixF< 6, 6 >	giveStressVectorTranformationMtrx (const FloatMatrixF< 3, 3 > &base, bool transpose=false)
static FloatMatrixF< 3, 3 >	givePlaneStressVectorTranformationMtrx (const FloatMatrixF< 2, 2 > &base, bool transpose=false)
static void	sortPrincDirAndValCloseTo (FloatArray &pVal, FloatMatrix &pDir, const FloatMatrix &toPDir)
Static Public Attributes inherited from oofem::StructuralMaterial
static std::array< std::array< int, 3 >, 3 >	vIindex
	Voigt index map.
static std::array< std::array< int, 3 >, 3 >	svIndex
	Symmetric Voigt index map.

Detailed Description

This class implements a perfectly plastic material in a finite element problem. A material is an attribute of a domain. It is usually also attribute of many elements.

This class is mainly abstract, no new methods or data added. This class is mainly intended to be a base class for perfectly plastic materials. (for perfectly plastic material a linear elastic behaviour is assumed before yielding surface is being reached, and also unloading is assumed to be linear elastic). This class takes care about possible failure and fracture and hardening, even if it is not required for perfectly-plastic material, but this class is assumed to be a parent class for more sophisticated materials where these phenomena should appear. Tasks:

Returning standard material stiffness and flexibility matrices for 3d-case. according to current state determined by using data stored in Gausspoint.
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 113 of file perfectlyplasticmaterial.h.

Constructor & Destructor Documentation

◆ PerfectlyPlasticMaterial()

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

inline

Definition at line 122 of file perfectlyplasticmaterial.h.

References oofem::StructuralMaterial::StructuralMaterial().

Referenced by give1dStressStiffMtrx(), give2dBeamLayerStiffMtrx(), give3dMaterialStiffnessMatrix(), givePlaneStrainStiffMtrx(), givePlaneStressStiffMtrx(), givePlateLayerStiffMtrx(), giveRealStressVector_1d(), giveRealStressVector_2dBeamLayer(), giveRealStressVector_3d(), giveRealStressVector_PlaneStrain(), giveRealStressVector_PlaneStress(), giveRealStressVector_PlateLayer(), and oofem::Steel1::Steel1().

◆ ~PerfectlyPlasticMaterial()

virtual oofem::PerfectlyPlasticMaterial::~PerfectlyPlasticMaterial ( )

inlinevirtual

Definition at line 124 of file perfectlyplasticmaterial.h.

References linearElasticMaterial.

Member Function Documentation

◆ computePlasticStiffnessAt()

void oofem::PerfectlyPlasticMaterial::computePlasticStiffnessAt	(	FloatMatrix &	answer,
		GaussPoint *	gp,
		FloatArray *	currentStressVector,
		FloatArray *	currentPlasticStrainVector,
		FloatArray *	strainIncrement3d,
		TimeStep *	tStep,
		double &	lambda ) const

protected

Definition at line 522 of file perfectlyplasticmaterial.C.

References oofem::FloatArray::at(), oofem::FloatArray::beProductOf(), oofem::FloatMatrix::beProductOf(), oofem::FloatMatrix::fromArray(), giveEffectiveMaterialStiffnessMatrix(), GiveLCStressGradient(), GiveYCStressGradient(), oofem::StructuralCrossSection::imposeStrainConstrainsOnGradient(), oofem::StructuralCrossSection::imposeStressConstrainsOnGradient(), and oofem::StructuralMaterial::StructuralCrossSection.

Referenced by giveMaterialStiffnessMatrix(), and giveRealStressVector().

◆ computeTrialStressIncrement()

void oofem::PerfectlyPlasticMaterial::computeTrialStressIncrement	(	FloatArray &	answer,
		GaussPoint *	gp,
		const FloatArray &	strainIncrement,
		TimeStep *	tStep ) const

protected

Definition at line 501 of file perfectlyplasticmaterial.C.

References giveEffectiveMaterialStiffnessMatrix().

Referenced by giveRealStressVector().

◆ computeYCValueAt()

virtual double oofem::PerfectlyPlasticMaterial::computeYCValueAt	(	GaussPoint *	gp,
		FloatArray *	,
		FloatArray *	) const

inlineprotectedvirtual

Reimplemented in oofem::Steel1.

Definition at line 220 of file perfectlyplasticmaterial.h.

Referenced by giveRealStressVector(), and GiveStressCorrectionBackToYieldSurface().

◆ CreateStatus()

std::unique_ptr< MaterialStatus > oofem::PerfectlyPlasticMaterial::CreateStatus ( GaussPoint * gp ) const

overridevirtual

Creates new copy of associated status and inserts it into given integration point.

Parameters

gp	Integration point where newly created status will be stored.

Returns: Reference to new status.

Reimplemented from oofem::Material.

Definition at line 657 of file perfectlyplasticmaterial.C.

◆ give()

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

overridevirtual

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 636 of file perfectlyplasticmaterial.C.

References linearElasticMaterial, OOFEM_ERROR, and oofem::Material::propertyDictionary.

Referenced by oofem::Steel1::computeYCValueAt().

◆ give1dStressStiffMtrx()

FloatMatrixF< 1, 1 > oofem::PerfectlyPlasticMaterial::give1dStressStiffMtrx	(	MatResponseMode	mmode,
		GaussPoint *	gp,
		TimeStep *	tStep ) const

overrideprotectedvirtual

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

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).

Returns: Stiffness matrix.

Reimplemented from oofem::StructuralMaterial.

Definition at line 436 of file perfectlyplasticmaterial.C.

References giveMaterialStiffnessMatrix(), linearElasticMaterial, and PerfectlyPlasticMaterial().

◆ give2dBeamLayerStiffMtrx()

FloatMatrixF< 2, 2 > oofem::PerfectlyPlasticMaterial::give2dBeamLayerStiffMtrx	(	MatResponseMode	mmode,
		GaussPoint *	gp,
		TimeStep *	tStep ) const

overrideprotectedvirtual

Method for computing 2d beam layer stiffness matrix of receiver. Default implementation computes 3d stiffness matrix using give3dMaterialStiffnessMatrix and reduces it to 2d beam layer 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 455 of file perfectlyplasticmaterial.C.

References giveMaterialStiffnessMatrix(), linearElasticMaterial, and PerfectlyPlasticMaterial().

◆ give3dMaterialStiffnessMatrix()

FloatMatrixF< 6, 6 > oofem::PerfectlyPlasticMaterial::give3dMaterialStiffnessMatrix	(	MatResponseMode	mode,
		GaussPoint *	gp,
		TimeStep *	tStep ) const

overridevirtual

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 354 of file perfectlyplasticmaterial.C.

References giveMaterialStiffnessMatrix(), linearElasticMaterial, and PerfectlyPlasticMaterial().

◆ giveClassName()

const char * oofem::PerfectlyPlasticMaterial::giveClassName ( ) const

inlineoverridevirtual

Returns: Class name of the receiver.

Implements oofem::FEMComponent.

Reimplemented in oofem::Steel1.

Definition at line 174 of file perfectlyplasticmaterial.h.

◆ giveEffectiveMaterialStiffnessMatrix()

void oofem::PerfectlyPlasticMaterial::giveEffectiveMaterialStiffnessMatrix	(	FloatMatrix &	answer,
		MatResponseMode	mode,
		GaussPoint *	gp,
		TimeStep *	tStep ) const

protectedvirtual

Definition at line 266 of file perfectlyplasticmaterial.C.

References oofem::StructuralMaterial::giveFullSymMatrixForm(), giveLinearElasticMaterial(), oofem::StructuralMaterial::giveStiffnessMatrix(), oofem::StructuralMaterial::hasMaterialModeCapability(), OOFEM_ERROR, and oofem::StructuralMaterial::StructuralMaterial().

Referenced by computePlasticStiffnessAt(), computeTrialStressIncrement(), and giveMaterialStiffnessMatrix().

◆ giveIPValue()

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

overridevirtual

Returns the integration point corresponding value in Reduced form.

Parameters

answer	Contain corresponding ip value, zero sized if not available.
gp	Integration point to which the value refers.
type	Determines the type of internal variable.
tStep	Determines the time step.

Returns: Nonzero if the assignment can be done, zero if this type of variable is not supported.

Todo: Fill in correct full form values here! This just adds zeros!

Todo: Fill in correct full form values here! This just adds zeros!

Reimplemented from oofem::Material.

Definition at line 667 of file perfectlyplasticmaterial.C.

References oofem::StructuralMaterial::computePrincipalValues(), oofem::GaussPoint::giveMaterialMode(), oofem::PerfectlyPlasticMaterialStatus::givePlasticStrainVector(), oofem::Material::giveStatus(), and oofem::principal_strain.

◆ GiveLCPlasticStrainGradient()

virtual FloatArray * oofem::PerfectlyPlasticMaterial::GiveLCPlasticStrainGradient	(	GaussPoint *	gp,
		FloatArray *	,
		FloatArray *	) const

inlineprotectedvirtual

Reimplemented in oofem::Steel1.

Definition at line 224 of file perfectlyplasticmaterial.h.

◆ GiveLCStressGradient()

virtual FloatArray * oofem::PerfectlyPlasticMaterial::GiveLCStressGradient	(	GaussPoint *	gp,
		FloatArray *	,
		FloatArray *	) const

inlineprotectedvirtual

Reimplemented in oofem::Steel1.

Definition at line 222 of file perfectlyplasticmaterial.h.

Referenced by computePlasticStiffnessAt(), and giveRealStressVector().

◆ giveLinearElasticMaterial()

LinearElasticMaterial * oofem::PerfectlyPlasticMaterial::giveLinearElasticMaterial ( ) const

inline

Definition at line 176 of file perfectlyplasticmaterial.h.

References linearElasticMaterial.

Referenced by giveEffectiveMaterialStiffnessMatrix(), and initializeFrom().

◆ giveMaterialStiffnessMatrix()

void oofem::PerfectlyPlasticMaterial::giveMaterialStiffnessMatrix	(	FloatMatrix &	answer,
		MatResponseMode	mode,
		GaussPoint *	gp,
		TimeStep *	tStep ) const

protectedvirtual

Definition at line 297 of file perfectlyplasticmaterial.C.

References computePlasticStiffnessAt(), giveEffectiveMaterialStiffnessMatrix(), oofem::PerfectlyPlasticMaterialStatus::givePlasticStrainVector(), oofem::Material::giveStatus(), oofem::StructuralMaterialStatus::giveStressVector(), and oofem::PerfectlyPlasticMaterialStatus::giveYieldFlag().

Referenced by give1dStressStiffMtrx(), give2dBeamLayerStiffMtrx(), give3dMaterialStiffnessMatrix(), givePlaneStrainStiffMtrx(), givePlaneStressStiffMtrx(), and givePlateLayerStiffMtrx().

◆ givePlaneStrainStiffMtrx()

FloatMatrixF< 4, 4 > oofem::PerfectlyPlasticMaterial::givePlaneStrainStiffMtrx	(	MatResponseMode	mmode,
		GaussPoint *	gp,
		TimeStep *	tStep ) const

overrideprotectedvirtual

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 415 of file perfectlyplasticmaterial.C.

References giveMaterialStiffnessMatrix(), linearElasticMaterial, and PerfectlyPlasticMaterial().

◆ givePlaneStressStiffMtrx()

FloatMatrixF< 3, 3 > oofem::PerfectlyPlasticMaterial::givePlaneStressStiffMtrx	(	MatResponseMode	mmode,
		GaussPoint *	gp,
		TimeStep *	tStep ) const

overrideprotectedvirtual

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 392 of file perfectlyplasticmaterial.C.

References giveMaterialStiffnessMatrix(), linearElasticMaterial, and PerfectlyPlasticMaterial().

◆ givePlateLayerStiffMtrx()

FloatMatrixF< 5, 5 > oofem::PerfectlyPlasticMaterial::givePlateLayerStiffMtrx	(	MatResponseMode	mmode,
		GaussPoint *	gp,
		TimeStep *	tStep ) const

overrideprotectedvirtual

Method for computing 2d plate layer stiffness matrix of receiver. Default implementation computes 3d stiffness matrix using give3dMaterialStiffnessMatrix and reduces it to 2d plate layer 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 478 of file perfectlyplasticmaterial.C.

References giveMaterialStiffnessMatrix(), linearElasticMaterial, and PerfectlyPlasticMaterial().

◆ giveRealStressVector()

void oofem::PerfectlyPlasticMaterial::giveRealStressVector	(	FloatArray &	answer,
		GaussPoint *	gp,
		const FloatArray &	reducedStrain,
		TimeStep *	tStep ) const

overridevirtual

Computes the real stress vector for given total strain and integration point. The total strain is defined as strain computed directly from displacement field at given time. The stress independent parts (temperature, eigenstrains) are subtracted in constitutive driver. The service should use previously reached equilibrium history variables. Also it should update temporary history variables in status according to newly reached state. The temporary history variables are moved into equilibrium ones after global structure equilibrium has been reached by iteration process.

Parameters

answer	Stress vector in reduced form. For large deformations it is treated as the second Piola-Kirchoff stress.
gp	Integration point.
reducedStrain	Strain vector in reduced form. For large deformations it is treated as the Green-Lagrange strain.
tStep	Current time step (most models are able to respond only when tStep is current time step).

Todo: Move this to StructuralCrossSection ?

Reimplemented from oofem::StructuralMaterial.

Definition at line 63 of file perfectlyplasticmaterial.C.

References oofem::FloatArray::add(), oofem::FloatArray::at(), oofem::FloatArray::beDifferenceOf(), oofem::FloatArray::beProductOf(), computePlasticStiffnessAt(), computeTrialStressIncrement(), computeYCValueAt(), GiveLCStressGradient(), oofem::PerfectlyPlasticMaterialStatus::givePlasticStrainVector(), oofem::Material::giveStatus(), oofem::StructuralMaterialStatus::giveStrainVector(), GiveStressCorrectionBackToYieldSurface(), oofem::StructuralMaterial::giveStressDependentPartOfStrainVector(), oofem::StructuralMaterialStatus::giveStressVector(), GiveYCStressGradient(), oofem::StructuralCrossSection::imposeStrainConstrainsOnGradient(), oofem::StructuralCrossSection::imposeStressConstrainsOnGradient(), oofem::Material::initTempStatus(), oofem::PerfectlyPlasticMaterialStatus::letPlasticStrainIncrementVectorBe(), oofem::StructuralMaterialStatus::letTempStrainVectorBe(), oofem::StructuralMaterialStatus::letTempStressVectorBe(), oofem::FloatArray::negated(), oofem::PerfectlyPlasticMaterialStatus::setTempYieldFlag(), STRAIN_STEPS, oofem::StructuralMaterial::StructuralCrossSection, oofem::FloatArray::times(), updateIfFailure(), updateTempLC(), and updateTempYC().

Referenced by giveRealStressVector_1d(), giveRealStressVector_2dBeamLayer(), giveRealStressVector_3d(), giveRealStressVector_PlaneStrain(), giveRealStressVector_PlaneStress(), and giveRealStressVector_PlateLayer().

◆ giveRealStressVector_1d()

FloatArrayF< 1 > oofem::PerfectlyPlasticMaterial::giveRealStressVector_1d	(	const FloatArrayF< 1 > &	reducedE,
		GaussPoint *	gp,
		TimeStep *	tStep ) const

inlineoverridevirtual

Default implementation relies on giveRealStressVector_StressControl.

Reimplemented from oofem::StructuralMaterial.

Definition at line 149 of file perfectlyplasticmaterial.h.

References giveRealStressVector(), and PerfectlyPlasticMaterial().

◆ giveRealStressVector_2dBeamLayer()

FloatArrayF< 2 > oofem::PerfectlyPlasticMaterial::giveRealStressVector_2dBeamLayer	(	const FloatArrayF< 2 > &	reducedE,
		GaussPoint *	gp,
		TimeStep *	tStep ) const

inlineoverridevirtual

Default implementation relies on giveRealStressVector_StressControl.

Reimplemented from oofem::StructuralMaterial.

Definition at line 155 of file perfectlyplasticmaterial.h.

References giveRealStressVector(), and PerfectlyPlasticMaterial().

◆ giveRealStressVector_3d()

FloatArrayF< 6 > oofem::PerfectlyPlasticMaterial::giveRealStressVector_3d	(	const FloatArrayF< 6 > &	strain,
		GaussPoint *	gp,
		TimeStep *	tStep ) const

inlineoverridevirtual

Default implementation relies on giveRealStressVector for second Piola-Kirchoff stress.

Reimplemented from oofem::StructuralMaterial.

Definition at line 131 of file perfectlyplasticmaterial.h.

References giveRealStressVector(), and PerfectlyPlasticMaterial().

◆ giveRealStressVector_PlaneStrain()

FloatArrayF< 4 > oofem::PerfectlyPlasticMaterial::giveRealStressVector_PlaneStrain	(	const FloatArrayF< 4 > &	strain,
		GaussPoint *	gp,
		TimeStep *	tStep ) const

inlineoverridevirtual

Default implementation relies on giveRealStressVector_3d.

Reimplemented from oofem::StructuralMaterial.

Definition at line 137 of file perfectlyplasticmaterial.h.

References giveRealStressVector(), and PerfectlyPlasticMaterial().

◆ giveRealStressVector_PlaneStress()

FloatArrayF< 3 > oofem::PerfectlyPlasticMaterial::giveRealStressVector_PlaneStress	(	const FloatArrayF< 3 > &	reducedE,
		GaussPoint *	gp,
		TimeStep *	tStep ) const

inlineoverridevirtual

Default implementation relies on giveRealStressVector_StressControl.

Reimplemented from oofem::StructuralMaterial.

Definition at line 143 of file perfectlyplasticmaterial.h.

References giveRealStressVector(), and PerfectlyPlasticMaterial().

◆ giveRealStressVector_PlateLayer()

FloatArrayF< 5 > oofem::PerfectlyPlasticMaterial::giveRealStressVector_PlateLayer	(	const FloatArrayF< 5 > &	reducedE,
		GaussPoint *	gp,
		TimeStep *	tStep ) const

inlineoverridevirtual

Default implementation relies on giveRealStressVector_StressControl.

Reimplemented from oofem::StructuralMaterial.

Definition at line 161 of file perfectlyplasticmaterial.h.

References giveRealStressVector(), and PerfectlyPlasticMaterial().

◆ GiveStressCorrectionBackToYieldSurface()

FloatArray * oofem::PerfectlyPlasticMaterial::GiveStressCorrectionBackToYieldSurface	(	GaussPoint *	gp,
		FloatArray *	stressVector3d,
		FloatArray *	plasticVector3d ) const

protected

Definition at line 593 of file perfectlyplasticmaterial.C.

References oofem::FloatArray::at(), computeYCValueAt(), GiveYCStressGradient(), oofem::StructuralCrossSection::imposeStressConstrainsOnGradient(), oofem::StructuralMaterial::StructuralCrossSection, and oofem::FloatArray::times().

Referenced by giveRealStressVector().

◆ GiveYCPlasticStrainGradient()

virtual FloatArray * oofem::PerfectlyPlasticMaterial::GiveYCPlasticStrainGradient	(	GaussPoint *	gp,
		FloatArray *	,
		FloatArray *	) const

inlineprotectedvirtual

Reimplemented in oofem::Steel1.

Definition at line 223 of file perfectlyplasticmaterial.h.

◆ GiveYCStressGradient()

virtual FloatArray * oofem::PerfectlyPlasticMaterial::GiveYCStressGradient	(	GaussPoint *	gp,
		FloatArray *	,
		FloatArray *	) const

inlineprotectedvirtual

Reimplemented in oofem::Steel1.

Definition at line 221 of file perfectlyplasticmaterial.h.

Referenced by computePlasticStiffnessAt(), giveRealStressVector(), and GiveStressCorrectionBackToYieldSurface().

◆ hasMaterialModeCapability()

bool oofem::PerfectlyPlasticMaterial::hasMaterialModeCapability ( MaterialMode mode ) const

overridevirtual

Tests if material supports material mode.

Parameters

mode	Required material mode.

Returns: Nonzero if supported, zero otherwise.

Reimplemented from oofem::Material.

Definition at line 46 of file perfectlyplasticmaterial.C.

◆ initializeFrom()

void oofem::PerfectlyPlasticMaterial::initializeFrom ( InputRecord & ir )

overridevirtual

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. Note that initializeFrom may be called mutiple times.