#include <j2mat.h>

Inheritance diagram for oofem::J2Mat:

Collaboration diagram for oofem::J2Mat:

Public Member Functions
	J2Mat (int n, Domain *d)
void	initializeFrom (InputRecord &ir) override
const char *	giveInputRecordName () const override
const char *	giveClassName () const override
int	giveSizeOfFullHardeningVarsVector () const override
int	giveSizeOfReducedHardeningVarsVector (GaussPoint *gp) const override
bool	isCharacteristicMtrxSymmetric (MatResponseMode rMode) const override
std::unique_ptr< MaterialStatus >	CreateStatus (GaussPoint *gp) const override
Public Member Functions inherited from oofem::MPlasticMaterial2
	MPlasticMaterial2 (int n, Domain *d)
virtual	~MPlasticMaterial2 ()
bool	hasMaterialModeCapability (MaterialMode mode) const override
const char *	giveClassName () const override
LinearElasticMaterial *	giveLinearElasticMaterial ()
	Returns reference to undamaged (bulk) material.
bool	isCharacteristicMtrxSymmetric (MatResponseMode rMode) const override
FloatArrayF< 6 >	giveThermalDilatationVector (GaussPoint gp, TimeStep tStep) const override
FloatMatrixF< 6, 6 >	give3dMaterialStiffnessMatrix (MatResponseMode, GaussPoint gp, TimeStep tStep) const override
void	giveRealStressVector (FloatArray &answer, GaussPoint gp, const FloatArray &strain, 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.
virtual double	computeDamage (GaussPoint gp, const FloatArray &strainSpaceHardeningVariables, TimeStep tStep) const
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< 2 >	giveRealStressVector_2dBeamLayer (const FloatArrayF< 2 > &reducedE, GaussPoint gp, TimeStep tStep) const
	Default implementation relies on giveRealStressVector_StressControl.
virtual FloatArrayF< 5 >	giveRealStressVector_PlateLayer (const FloatArrayF< 5 > &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)
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 >	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 double	giveCharacteristicValue (MatResponseMode type, GaussPoint gp, TimeStep tStep) const
	Returns characteristic value of the receiver.
virtual double	give (int aProperty, GaussPoint *gp) const
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.
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
int	giveMaxNumberOfActiveYieldConds (GaussPoint *gp) const override
double	computeYieldValueAt (GaussPoint *gp, int isurf, const FloatArray &stressVector, const FloatArray &strainSpaceHardeningVars) const override
	Computes the value of yield function.
void	computeStressGradientVector (FloatArray &answer, functType ftype, int isurf, GaussPoint *gp, const FloatArray &stressVector, const FloatArray &strainSpaceHardeningVars) const override
	Computes the stress gradient of yield/loading function (df/d_sigma).
void	computeStrainHardeningVarsIncrement (FloatArray &answer, GaussPoint *gp, const FloatArray &stress, const FloatArray &dlambda, const FloatArray &dplasticStrain, const IntArray &activeConditionMap) const override
void	computeKGradientVector (FloatArray &answer, functType ftype, int isurf, GaussPoint *gp, FloatArray &fullStressVector, const FloatArray &strainSpaceHardeningVariables) const override
void	computeReducedHardeningVarsSigmaGradient (FloatMatrix &answer, GaussPoint *gp, const IntArray &activeConditionMap, const FloatArray &fullStressVector, const FloatArray &strainSpaceHardeningVars, const FloatArray &gamma) const override
void	computeReducedHardeningVarsLamGradient (FloatMatrix &answer, GaussPoint *gp, int actSurf, const IntArray &activeConditionMap, const FloatArray &fullStressVector, const FloatArray &strainSpaceHardeningVars, const FloatArray &gamma) const override
	computes derivative of \( \kappa \) vector with respect to lambda vector
int	hasHardening () const override
void	computeReducedSSGradientMatrix (FloatMatrix &gradientMatrix, int i, GaussPoint *gp, const FloatArray &fullStressVector, const FloatArray &strainSpaceHardeningVariables) const override
	Computes second derivative of loading function with respect to stress.
void	computeReducedSKGradientMatrix (FloatMatrix &gradientMatrix, int i, GaussPoint *gp, const FloatArray &fullStressVector, const FloatArray &strainSpaceHardeningVariables) const override
	Computes second derivative of loading function with respect to stress and hardening vars.
double	giveIsotropicHardeningVar (GaussPoint *gp, const FloatArray &strainSpaceHardeningVars) const
void	giveStressBackVector (FloatArray &answer, GaussPoint *gp, const FloatArray &strainSpaceHardeningVars) const
Protected Member Functions inherited from oofem::MPlasticMaterial2
void	closestPointReturn (FloatArray &answer, IntArray &activeConditionMap, FloatArray &gamma, GaussPoint gp, const FloatArray &totalStrain, FloatArray &plasticStrainR, FloatArray &strainSpaceHardeningVariables, TimeStep tStep) const
void	cuttingPlaneReturn (FloatArray &answer, IntArray &activeConditionMap, FloatArray &gamma, GaussPoint gp, const FloatArray &totalStrain, FloatArray &plasticStrainR, FloatArray &strainSpaceHardeningVariables, TimeStep tStep) const
void	computeResidualVector (FloatArray &answer, GaussPoint *gp, const FloatArray &gamma, const IntArray &activeConditionMap, const FloatArray &plasticStrainVectorR, const FloatArray &strainSpaceHardeningVariables, std ::vector< FloatArray > &gradVec) const
virtual FloatMatrix	giveConsistentStiffnessMatrix (MatResponseMode, GaussPoint gp, TimeStep tStep) const
virtual FloatMatrix	giveElastoPlasticStiffnessMatrix (MatResponseMode mode, GaussPoint gp, TimeStep tStep) const
void	computeAlgorithmicModuli (FloatMatrix &answer, GaussPoint *gp, const FloatMatrix &elasticModuliInverse, const FloatArray &gamma, const IntArray &activeConditionMap, const FloatArray &fullStressVector, const FloatArray &strainSpaceHardeningVariables) const
void	computeReducedStressGradientVector (FloatArray &answer, functType ftype, int isurf, GaussPoint *gp, const FloatArray &stressVector, const FloatArray &strainSpaceHardeningVariables) const
virtual void	computeTrialStressIncrement (FloatArray &answer, GaussPoint gp, const FloatArray &strainIncrement, TimeStep tStep) const
virtual void	computeReducedElasticModuli (FloatMatrix &answer, GaussPoint gp, TimeStep tStep) const
FloatMatrixF< 3, 3 >	givePlaneStressStiffMtrx (MatResponseMode, GaussPoint gp, TimeStep tStep) const override
FloatMatrixF< 4, 4 >	givePlaneStrainStiffMtrx (MatResponseMode, GaussPoint gp, TimeStep tStep) const override
FloatMatrixF< 1, 1 >	give1dStressStiffMtrx (MatResponseMode, GaussPoint gp, TimeStep tStep) const override
FloatMatrixF< 2, 2 >	give2dBeamLayerStiffMtrx (MatResponseMode, GaussPoint gp, TimeStep tStep) const override
FloatMatrixF< 5, 5 >	givePlateLayerStiffMtrx (MatResponseMode, GaussPoint gp, TimeStep tStep) const override
FloatMatrixF< 3, 3 >	giveFiberStiffMtrx (MatResponseMode, GaussPoint gp, TimeStep tStep) const override
long	getPopulationSignature (IntArray &mask) const
int	testPopulation (long pop) const
void	clearPopulationSet () const
void	addNewPopulation (IntArray &mask) const
int	getNewPopulation (IntArray &result, IntArray &candidateMask, int degree, int size) const

Static Protected Member Functions
static double	computeJ2InvariantAt (const FloatArray &stressVector)

Protected Attributes
int	kinematicHardeningFlag = 0
int	isotropicHardeningFlag = 0
double	kinematicModuli = 0.
double	isotropicModuli = 0.
double	k = 0.
Protected Attributes inherited from oofem::MPlasticMaterial2
LinearElasticMaterial *	linearElasticMaterial
	Reference to bulk (undamaged) material.
int	nsurf
	Number of yield surfaces.
enum oofem::MPlasticMaterial2::ReturnMappingAlgoType	rmType
enum oofem::MPlasticMaterial2::plastType	plType
bool	iterativeUpdateOfActiveConds
	Flag indicating whether iterative update of a set of active yield conditions takes place.
std ::set< long >	populationSet
	Set for keeping record of generated populations of active yield conditions during return.
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.
Protected Types inherited from oofem::MPlasticMaterial2
enum	ReturnMappingAlgoType { mpm_ClosestPoint , mpm_CuttingPlane }
	Protected type to determine the return mapping algorithm. More...
enum	functType { yieldFunction , loadFunction }
	Type that allows to distinguish between yield function and loading function. More...
enum	plastType { associatedPT , nonassociatedPT }

Detailed Description

This class implements a isotropic plastic linear material (J2 plasticity condition is used). in a finite element problem. Both kinematic and isotropic hardening is supported.

Definition at line 57 of file j2mat.h.

Constructor & Destructor Documentation

◆ J2Mat()

oofem::J2Mat::J2Mat	(	int	n,
		Domain *	d )

Definition at line 47 of file j2mat.C.

References oofem::MPlasticMaterial2::linearElasticMaterial, oofem::MPlasticMaterial2::MPlasticMaterial2(), and oofem::MPlasticMaterial2::nsurf.

Member Function Documentation

◆ computeJ2InvariantAt()

double oofem::J2Mat::computeJ2InvariantAt ( const FloatArray & stressVector )

staticprotected

Definition at line 431 of file j2mat.C.

References oofem::FloatArray::at(), and oofem::FloatArray::isEmpty().

Referenced by computeReducedSSGradientMatrix(), computeStressGradientVector(), and computeYieldValueAt().

◆ computeKGradientVector()

void oofem::J2Mat::computeKGradientVector	(	FloatArray &	answer,
		functType	ftype,
		int	isurf,
		GaussPoint *	gp,
		FloatArray &	fullStressVector,
		const FloatArray &	strainSpaceHardeningVariables ) const

overrideprotectedvirtual

Computes the derivative of yield/loading function with respect to \( \kappa \) vector

Implements oofem::MPlasticMaterial2.

Definition at line 222 of file j2mat.C.

References oofem::FloatArray::at(), oofem::FloatArray::clear(), oofem::MPlasticMaterial2::computeReducedStressGradientVector(), oofem::FloatArray::giveSize(), giveSizeOfReducedHardeningVarsVector(), hasHardening(), isotropicHardeningFlag, isotropicModuli, kinematicHardeningFlag, kinematicModuli, and oofem::FloatArray::resize().

◆ computeReducedHardeningVarsLamGradient()

void oofem::J2Mat::computeReducedHardeningVarsLamGradient	(	FloatMatrix &	answer,
		GaussPoint *	gp,
		int	actSurf,
		const IntArray &	activeConditionMap,
		const FloatArray &	fullStressVector,
		const FloatArray &	strainSpaceHardeningVars,
		const FloatArray &	gamma ) const

overrideprotectedvirtual

computes derivative of \( \kappa \) vector with respect to lambda vector

Implements oofem::MPlasticMaterial2.

Definition at line 273 of file j2mat.C.

References oofem::FloatArray::at(), oofem::FloatMatrix::at(), oofem::MPlasticMaterial2::computeReducedStressGradientVector(), oofem::FloatArray::giveSize(), giveSizeOfReducedHardeningVarsVector(), isotropicHardeningFlag, kinematicHardeningFlag, oofem::MPlasticMaterial2::loadFunction, oofem::FloatMatrix::resize(), and oofem::FloatMatrix::times().

◆ computeReducedHardeningVarsSigmaGradient()

void oofem::J2Mat::computeReducedHardeningVarsSigmaGradient	(	FloatMatrix &	answer,
		GaussPoint *	gp,
		const IntArray &	activeConditionMap,
		const FloatArray &	fullStressVector,
		const FloatArray &	strainSpaceHardeningVars,
		const FloatArray &	gamma ) const

overrideprotectedvirtual

Computes derivative of \( \kappa \) vector with respect to stress

Implements oofem::MPlasticMaterial2.

Definition at line 250 of file j2mat.C.

References oofem::FloatArray::at(), oofem::FloatMatrix::at(), computeReducedSSGradientMatrix(), oofem::GaussPoint::giveMaterialMode(), giveSizeOfReducedHardeningVarsVector(), kinematicHardeningFlag, oofem::FloatMatrix::resize(), and oofem::FloatMatrix::zero().

◆ computeReducedSKGradientMatrix()

void oofem::J2Mat::computeReducedSKGradientMatrix	(	FloatMatrix &	gradientMatrix,
		int	i,
		GaussPoint *	gp,
		const FloatArray &	fullStressVector,
		const FloatArray &	strainSpaceHardeningVariables ) const

overrideprotectedvirtual

Computes second derivative of loading function with respect to stress and hardening vars.

Implements oofem::MPlasticMaterial2.

Definition at line 400 of file j2mat.C.

References oofem::FloatMatrix::at(), computeReducedSSGradientMatrix(), oofem::GaussPoint::giveMaterialMode(), oofem::FloatMatrix::giveNumberOfRows(), giveSizeOfReducedHardeningVarsVector(), kinematicHardeningFlag, kinematicModuli, oofem::FloatMatrix::resize(), oofem::FloatMatrix::times(), and oofem::FloatMatrix::zero().

◆ computeReducedSSGradientMatrix()

void oofem::J2Mat::computeReducedSSGradientMatrix	(	FloatMatrix &	gradientMatrix,
		int	i,
		GaussPoint *	gp,
		const FloatArray &	fullStressVector,
		const FloatArray &	strainSpaceHardeningVariables ) const

overrideprotectedvirtual

Computes second derivative of loading function with respect to stress.

Implements oofem::MPlasticMaterial2.

Definition at line 302 of file j2mat.C.

References oofem::FloatArray::add(), oofem::FloatArray::at(), oofem::FloatMatrix::at(), oofem::IntArray::at(), computeJ2InvariantAt(), oofem::GaussPoint::giveMaterialMode(), oofem::FloatArray::giveSize(), giveStressBackVector(), kinematicHardeningFlag, oofem::FloatMatrix::resize(), and oofem::FloatMatrix::zero().

Referenced by computeReducedHardeningVarsSigmaGradient(), and computeReducedSKGradientMatrix().

◆ computeStrainHardeningVarsIncrement()

void oofem::J2Mat::computeStrainHardeningVarsIncrement	(	FloatArray &	answer,
		GaussPoint *	gp,
		const FloatArray &	stress,
		const FloatArray &	dlambda,
		const FloatArray &	dplasticStrain,
		const IntArray &	activeConditionMap ) const

overrideprotectedvirtual

Computes the increment of strain-space hardening variables.

Parameters

answer	Result.
gp	Gauss point to compute at.
stress	Updated stress (corresponds to newly reached state).
dlambda	Increment of consistency parameters.
dplasticStrain	Actual plastic strain increment.
activeConditionMap	Array of active yield conditions.

Implements oofem::MPlasticMaterial2.

Definition at line 200 of file j2mat.C.

References oofem::FloatArray::at(), oofem::FloatArray::giveSize(), giveSizeOfReducedHardeningVarsVector(), isotropicHardeningFlag, kinematicHardeningFlag, and oofem::FloatArray::resize().

◆ computeStressGradientVector()

void oofem::J2Mat::computeStressGradientVector	(	FloatArray &	answer,
		functType	ftype,
		int	isurf,
		GaussPoint *	gp,
		const FloatArray &	stressVector,
		const FloatArray &	strainSpaceHardeningVariables ) const

overrideprotectedvirtual

Computes the stress gradient of yield/loading function (df/d_sigma).

Implements oofem::MPlasticMaterial2.

Definition at line 154 of file j2mat.C.

References oofem::FloatArray::add(), oofem::FloatArray::at(), computeJ2InvariantAt(), giveStressBackVector(), oofem::FloatArray::isNotEmpty(), kinematicHardeningFlag, oofem::FloatArray::resize(), and oofem::FloatArray::zero().

◆ computeYieldValueAt()

double oofem::J2Mat::computeYieldValueAt	(	GaussPoint *	gp,
		int	isurf,
		const FloatArray &	stressVector,
		const FloatArray &	strainSpaceHardeningVariables ) const

overrideprotectedvirtual

Computes the value of yield function.

Implements oofem::MPlasticMaterial2.

Definition at line 130 of file j2mat.C.

References oofem::FloatArray::add(), computeJ2InvariantAt(), giveIsotropicHardeningVar(), giveStressBackVector(), oofem::FloatArray::isNotEmpty(), k, and kinematicHardeningFlag.

◆ CreateStatus()

std::unique_ptr< MaterialStatus > oofem::J2Mat::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 89 of file j2mat.C.

References giveSizeOfReducedHardeningVarsVector().

◆ giveClassName()

const char * oofem::J2Mat::giveClassName ( ) const

inlineoverridevirtual

Returns: Class name of the receiver.

Implements oofem::FEMComponent.

Definition at line 69 of file j2mat.h.

◆ giveInputRecordName()

const char * oofem::J2Mat::giveInputRecordName ( ) const

inlineoverridevirtual

Returns: Input record name of the receiver.

Implements oofem::FEMComponent.

Definition at line 68 of file j2mat.h.

References _IFT_J2Mat_Name.

◆ giveIsotropicHardeningVar()

double oofem::J2Mat::giveIsotropicHardeningVar	(	GaussPoint *	gp,
		const FloatArray &	strainSpaceHardeningVars ) const

protected

Definition at line 477 of file j2mat.C.

References oofem::FloatArray::at(), giveSizeOfReducedHardeningVarsVector(), isotropicHardeningFlag, and isotropicModuli.

Referenced by computeYieldValueAt().

◆ giveMaxNumberOfActiveYieldConds()

int oofem::J2Mat::giveMaxNumberOfActiveYieldConds ( GaussPoint * gp ) const

inlineoverrideprotectedvirtual

Implements oofem::MPlasticMaterial2.

Definition at line 78 of file j2mat.h.

◆ giveSizeOfFullHardeningVarsVector()

int oofem::J2Mat::giveSizeOfFullHardeningVarsVector ( ) const

overridevirtual

Reimplemented from oofem::MPlasticMaterial2.

Definition at line 95 of file j2mat.C.

References isotropicHardeningFlag, and kinematicHardeningFlag.

◆ giveSizeOfReducedHardeningVarsVector()

int oofem::J2Mat::giveSizeOfReducedHardeningVarsVector ( GaussPoint * gp ) const

overridevirtual

Reimplemented from oofem::MPlasticMaterial2.

Definition at line 112 of file j2mat.C.

References oofem::GaussPoint::giveMaterialMode(), isotropicHardeningFlag, and kinematicHardeningFlag.

Referenced by computeKGradientVector(), computeReducedHardeningVarsLamGradient(), computeReducedHardeningVarsSigmaGradient(), computeReducedSKGradientMatrix(), computeStrainHardeningVarsIncrement(), CreateStatus(), and giveIsotropicHardeningVar().

◆ giveStressBackVector()

void oofem::J2Mat::giveStressBackVector	(	FloatArray &	answer,
		GaussPoint *	gp,
		const FloatArray &	strainSpaceHardeningVars ) const

protected

Definition at line 452 of file j2mat.C.

References oofem::FloatArray::at(), oofem::IntArray::at(), oofem::FloatArray::clear(), oofem::GaussPoint::giveMaterialMode(), oofem::IntArray::giveSize(), kinematicHardeningFlag, kinematicModuli, and oofem::FloatArray::resize().

Referenced by computeReducedSSGradientMatrix(), computeStressGradientVector(), and computeYieldValueAt().

◆ hasHardening()

int oofem::J2Mat::hasHardening ( ) const

overrideprotectedvirtual

Indicates, whether receiver model has hardening/softening behavior or behaves according to perfect plasticity theory.

Implements oofem::MPlasticMaterial2.

Definition at line 424 of file j2mat.C.

References isotropicHardeningFlag, and kinematicHardeningFlag.

Referenced by computeKGradientVector().

◆ initializeFrom()

void oofem::J2Mat::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.

See also: IR_GIVE_FIELD; IR_GIVE_OPTIONAL_FIELD

Parameters

ir	Input record to initialize from.
priority	Priority of the input record. This is used to determine the order of initialization

Reimplemented from oofem::FEMComponent.

Definition at line 54 of file j2mat.C.

References _IFT_J2Mat_ihm, _IFT_J2Mat_khm, _IFT_J2Mat_rma, _IFT_J2Mat_ry, IR_GIVE_FIELD, IR_GIVE_OPTIONAL_FIELD, isotropicHardeningFlag, isotropicModuli, k, kinematicHardeningFlag, kinematicModuli, oofem::MPlasticMaterial2::linearElasticMaterial, oofem::MPlasticMaterial2::mpm_ClosestPoint, oofem::MPlasticMaterial2::mpm_CuttingPlane, and oofem::MPlasticMaterial2::rmType.

◆ isCharacteristicMtrxSymmetric()

bool oofem::J2Mat::isCharacteristicMtrxSymmetric ( MatResponseMode rMode ) const

inlineoverridevirtual

Returns true if stiffness matrix of receiver is symmetric Default implementation returns true.

Reimplemented from oofem::Material.

Definition at line 73 of file j2mat.h.

Member Data Documentation

◆ isotropicHardeningFlag

int oofem::J2Mat::isotropicHardeningFlag = 0

protected

Definition at line 60 of file j2mat.h.

Referenced by computeKGradientVector(), computeReducedHardeningVarsLamGradient(), computeStrainHardeningVarsIncrement(), giveIsotropicHardeningVar(), giveSizeOfFullHardeningVarsVector(), giveSizeOfReducedHardeningVarsVector(), hasHardening(), and initializeFrom().

◆ isotropicModuli

double oofem::J2Mat::isotropicModuli = 0.

protected

Definition at line 61 of file j2mat.h.

Referenced by computeKGradientVector(), giveIsotropicHardeningVar(), and initializeFrom().

◆ k

double oofem::J2Mat::k = 0.

protected

Definition at line 62 of file j2mat.h.

Referenced by computeYieldValueAt(), and initializeFrom().

◆ kinematicHardeningFlag

int oofem::J2Mat::kinematicHardeningFlag = 0

protected

Definition at line 60 of file j2mat.h.

Referenced by computeKGradientVector(), computeReducedHardeningVarsLamGradient(), computeReducedHardeningVarsSigmaGradient(), computeReducedSKGradientMatrix(), computeReducedSSGradientMatrix(), computeStrainHardeningVarsIncrement(), computeStressGradientVector(), computeYieldValueAt(), giveSizeOfFullHardeningVarsVector(), giveSizeOfReducedHardeningVarsVector(), giveStressBackVector(), hasHardening(), and initializeFrom().

◆ kinematicModuli

double oofem::J2Mat::kinematicModuli = 0.

protected

Definition at line 61 of file j2mat.h.

Referenced by computeKGradientVector(), computeReducedSKGradientMatrix(), giveStressBackVector(), and initializeFrom().

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

Public Member Functions

Protected Member Functions

Static Protected Member Functions

Protected Attributes

Additional Inherited Members

Detailed Description

Constructor & Destructor Documentation

◆ J2Mat()

Member Function Documentation

◆ computeJ2InvariantAt()

◆ computeKGradientVector()

◆ computeReducedHardeningVarsLamGradient()

◆ computeReducedHardeningVarsSigmaGradient()

◆ computeReducedSKGradientMatrix()

◆ computeReducedSSGradientMatrix()

◆ computeStrainHardeningVarsIncrement()

◆ computeStressGradientVector()

◆ computeYieldValueAt()

◆ CreateStatus()

◆ giveClassName()

◆ giveInputRecordName()

◆ giveIsotropicHardeningVar()

◆ giveMaxNumberOfActiveYieldConds()

◆ giveSizeOfFullHardeningVarsVector()

◆ giveSizeOfReducedHardeningVarsVector()

◆ giveStressBackVector()

◆ hasHardening()

◆ initializeFrom()

◆ isCharacteristicMtrxSymmetric()

Member Data Documentation

◆ isotropicHardeningFlag

◆ isotropicModuli

◆ k

◆ kinematicHardeningFlag

◆ kinematicModuli