oofem::MPlasticMaterial Class Reference

#include <mplasticmaterial.h>

Inheritance diagram for oofem::MPlasticMaterial:

Collaboration diagram for oofem::MPlasticMaterial:

Public Member Functions
	MPlasticMaterial (int n, Domain *d)
virtual	~MPlasticMaterial ()
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
FloatMatrixF< 6, 6 >	give3dMaterialStiffnessMatrix (MatResponseMode, GaussPoint *gp, TimeStep *tStep) const override
void	giveRealStressVector (FloatArray &answer, GaussPoint *gp, const FloatArray &, 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.
int	giveIPValue (FloatArray &answer, GaussPoint *gp, InternalStateType type, TimeStep *tStep) override
virtual int	giveSizeOfFullHardeningVarsVector () const
virtual int	giveSizeOfReducedHardeningVarsVector (GaussPoint *) const
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)
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 >	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.
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 Types
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 }

Protected Member Functions
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	computeGradientVector (FloatArray &answer, functType ftype, int isurf, GaussPoint *gp, const FloatArray &fullStressVector, const FloatArray &fullStressSpaceHardeningVars) 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 void	giveElastoPlasticStiffnessMatrix (FloatMatrix &answer, MatResponseMode mode, GaussPoint *gp, TimeStep *tStep) const
void	computeAlgorithmicModuli (FloatMatrix &answer, GaussPoint *gp, const FloatMatrix &elasticModuliInverse, const FloatMatrix &hardeningModuliInverse, const FloatArray &gamma, const IntArray &activeConditionMap, const FloatArray &fullStressVector, const FloatArray &fullStressSpaceHardeningVars) const
void	computeDiagModuli (FloatMatrix &answer, GaussPoint *gp, FloatMatrix &elasticModuliInverse, FloatMatrix &hardeningModuliInverse) const
virtual void	computeStressSpaceHardeningVars (FloatArray &answer, GaussPoint *gp, const FloatArray &strainSpaceHardeningVariables) const =0
virtual double	computeYieldValueAt (GaussPoint *gp, int isurf, const FloatArray &stressVector, const FloatArray &stressSpaceHardeningVars) const =0
virtual void	computeHardeningReducedModuli (FloatMatrix &answer, GaussPoint *gp, const FloatArray &strainSpaceHardeningVariables, TimeStep *tStep) const =0
virtual void	computeStressGradientVector (FloatArray &answer, functType ftype, int isurf, GaussPoint *gp, const FloatArray &stressVector, const FloatArray &stressSpaceHardeningVars) const =0
virtual void	computeStressSpaceHardeningVarsReducedGradient (FloatArray &answer, functType ftype, int isurf, GaussPoint *gp, const FloatArray &stressVector, const FloatArray &stressSpaceHardeningVars) const =0
virtual int	hasHardening () const
virtual void	computeReducedGradientMatrix (FloatMatrix &answer, int isurf, GaussPoint *gp, const FloatArray &stressVector, const FloatArray &stressSpaceHardeningVars) const =0
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

Protected Attributes
LinearElasticMaterial *	linearElasticMaterial = nullptr
	Reference to bulk (undamaged) material.
int	nsurf = 0
	Number of yield surfaces.
enum oofem::MPlasticMaterial::ReturnMappingAlgoType	rmType = mpm_ClosestPoint
enum oofem::MPlasticMaterial::plastType	plType = associatedPT
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 general plastic material. It is assumed to be a base class for many material models based on different yield conditions and hardening laws. Sress return mapping algorithm is based on general return mapping algorithm, with following assumptions

• associative flow rule
• general hardening law is supported
• Kunt-Tucker conditions apply.

Definition at line 141 of file mplasticmaterial.h.

Member Enumeration Documentation

functType

enum oofem::MPlasticMaterial::functType

protected

Type that allows to distinguish between yield function and loading function.

Enumerator
yieldFunction
loadFunction

Definition at line 151 of file mplasticmaterial.h.

plastType

enum oofem::MPlasticMaterial::plastType

protected

Enumerator
associatedPT
nonassociatedPT

Definition at line 152 of file mplasticmaterial.h.

ReturnMappingAlgoType

enum oofem::MPlasticMaterial::ReturnMappingAlgoType

protected

Protected type to determine the return mapping algorithm.

Enumerator
mpm_ClosestPoint
mpm_CuttingPlane

Definition at line 149 of file mplasticmaterial.h.

Constructor & Destructor Documentation

MPlasticMaterial()

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

Definition at line 48 of file mplasticmaterial.C.

References oofem::StructuralMaterial::StructuralMaterial().

Referenced by give1dStressStiffMtrx(), give2dBeamLayerStiffMtrx(), giveFiberStiffMtrx(), givePlateLayerStiffMtrx(), giveRealStressVector_1d(), giveRealStressVector_3d(), giveRealStressVector_PlaneStrain(), giveRealStressVector_PlaneStress(), oofem::J2MPlasticMaterial::J2MPlasticMaterial(), and oofem::RankinePlasticMaterial::RankinePlasticMaterial().

~MPlasticMaterial()

oofem::MPlasticMaterial::~MPlasticMaterial ( )

virtual

Definition at line 53 of file mplasticmaterial.C.

References linearElasticMaterial.

Member Function Documentation

closestPointReturn()

void oofem::MPlasticMaterial::closestPointReturn ( FloatArray & answer, IntArray & activeConditionMap, FloatArray & gamma, GaussPoint * gp, const FloatArray & totalStrain, FloatArray & plasticStrainR, FloatArray & strainSpaceHardeningVariables, TimeStep * tStep ) const

protected

Definition at line 162 of file mplasticmaterial.C.

References oofem::FloatArray::add(), associatedPT, oofem::FloatArray::at(), oofem::FloatMatrix::at(), oofem::IntArray::at(), oofem::FloatMatrix::beInverseOf(), oofem::FloatArray::beProductOf(), oofem::FloatArray::beTProductOf(), oofem::FloatMatrix::clear(), computeAlgorithmicModuli(), computeDiagModuli(), computeGradientVector(), computeHardeningReducedModuli(), oofem::FloatArray::computeNorm(), computeReducedElasticModuli(), computeResidualVector(), computeStressSpaceHardeningVars(), computeTrialStressIncrement(), computeYieldValueAt(), oofem::FloatArray::dotProduct(), oofem::GaussPoint::giveElement(), oofem::FEMComponent::giveNumber(), oofem::GaussPoint::giveNumber(), oofem::FloatMatrix::giveNumberOfRows(), oofem::MPlasticMaterialStatus::givePlasticStrainVector(), oofem::FloatArray::giveSize(), oofem::Material::giveStatus(), oofem::MPlasticMaterialStatus::giveStrainSpaceHardeningVars(), loadFunction, nonassociatedPT, nsurf, OOFEM_WARNING, PLASTIC_MATERIAL_MAX_ITERATIONS, plType, RES_TOL, oofem::FloatArray::resize(), oofem::FloatMatrix::resize(), oofem::FloatMatrix::solveForRhs(), oofem::FloatArray::subtract(), YIELD_TOL, yieldFunction, oofem::FloatArray::zero(), and oofem::IntArray::zero().

Referenced by giveRealStressVector().

computeAlgorithmicModuli()

void oofem::MPlasticMaterial::computeAlgorithmicModuli ( FloatMatrix & answer, GaussPoint * gp, const FloatMatrix & elasticModuliInverse, const FloatMatrix & hardeningModuliInverse, const FloatArray & gamma, const IntArray & activeConditionMap, const FloatArray & fullStressVector, const FloatArray & fullStressSpaceHardeningVars ) const

protected

Definition at line 751 of file mplasticmaterial.C.

References oofem::FloatMatrix::add(), oofem::FloatArray::at(), oofem::FloatMatrix::at(), oofem::IntArray::at(), oofem::FloatMatrix::beInverseOf(), computeReducedGradientMatrix(), oofem::FloatMatrix::giveNumberOfRows(), oofem::FloatArray::giveSize(), hasHardening(), nsurf, oofem::FloatMatrix::resize(), oofem::FloatMatrix::times(), and oofem::FloatMatrix::zero().

Referenced by closestPointReturn(), and giveConsistentStiffnessMatrix().

computeDiagModuli()

void oofem::MPlasticMaterial::computeDiagModuli ( FloatMatrix & answer, GaussPoint * gp, FloatMatrix & elasticModuliInverse, FloatMatrix & hardeningModuliInverse ) const

protected

Definition at line 1105 of file mplasticmaterial.C.

References oofem::FloatMatrix::at(), oofem::FloatMatrix::giveNumberOfRows(), oofem::FloatMatrix::resize(), and oofem::FloatMatrix::zero().

Referenced by closestPointReturn().

computeGradientVector()

void oofem::MPlasticMaterial::computeGradientVector ( FloatArray & answer, functType ftype, int isurf, GaussPoint * gp, const FloatArray & fullStressVector, const FloatArray & fullStressSpaceHardeningVars ) const

protected

Definition at line 652 of file mplasticmaterial.C.

References oofem::FloatArray::at(), computeStressGradientVector(), computeStressSpaceHardeningVarsReducedGradient(), oofem::GaussPoint::giveMaterialMode(), oofem::FloatArray::giveSize(), oofem::FloatArray::isNotEmpty(), and oofem::FloatArray::resize().

Referenced by closestPointReturn(), cuttingPlaneReturn(), giveConsistentStiffnessMatrix(), and giveElastoPlasticStiffnessMatrix().

computeHardeningReducedModuli()

virtual void oofem::MPlasticMaterial::computeHardeningReducedModuli ( FloatMatrix & answer, GaussPoint * gp, const FloatArray & strainSpaceHardeningVariables, TimeStep * tStep ) const

protectedpure virtual

Implemented in oofem::J2MPlasticMaterial, and oofem::RankinePlasticMaterial.

Referenced by closestPointReturn(), cuttingPlaneReturn(), giveConsistentStiffnessMatrix(), and giveElastoPlasticStiffnessMatrix().

computeReducedElasticModuli()

void oofem::MPlasticMaterial::computeReducedElasticModuli ( FloatMatrix & answer, GaussPoint * gp, TimeStep * tStep ) const

protectedvirtual

Definition at line 1139 of file mplasticmaterial.C.

References linearElasticMaterial.

Referenced by closestPointReturn(), computeTrialStressIncrement(), cuttingPlaneReturn(), giveConsistentStiffnessMatrix(), and giveElastoPlasticStiffnessMatrix().

computeReducedGradientMatrix()

virtual void oofem::MPlasticMaterial::computeReducedGradientMatrix ( FloatMatrix & answer, int isurf, GaussPoint * gp, const FloatArray & stressVector, const FloatArray & stressSpaceHardeningVars ) const

protectedpure virtual

Implemented in oofem::J2MPlasticMaterial, and oofem::RankinePlasticMaterial.

Referenced by computeAlgorithmicModuli().

computeResidualVector()

void oofem::MPlasticMaterial::computeResidualVector ( FloatArray & answer, GaussPoint * gp, const FloatArray & gamma, const IntArray & activeConditionMap, const FloatArray & plasticStrainVectorR, const FloatArray & strainSpaceHardeningVariables, std ::vector< FloatArray > & gradVec ) const

protected

Definition at line 697 of file mplasticmaterial.C.

References oofem::FloatArray::at(), oofem::IntArray::at(), oofem::MPlasticMaterialStatus::givePlasticStrainVector(), oofem::FloatArray::giveSize(), oofem::Material::giveStatus(), oofem::MPlasticMaterialStatus::giveStrainSpaceHardeningVars(), nsurf, and oofem::FloatArray::resize().

Referenced by closestPointReturn().

computeStressGradientVector()

virtual void oofem::MPlasticMaterial::computeStressGradientVector ( FloatArray & answer, functType ftype, int isurf, GaussPoint * gp, const FloatArray & stressVector, const FloatArray & stressSpaceHardeningVars ) const

protectedpure virtual

Implemented in oofem::J2MPlasticMaterial, and oofem::RankinePlasticMaterial.

Referenced by computeGradientVector().

computeStressSpaceHardeningVars()

virtual void oofem::MPlasticMaterial::computeStressSpaceHardeningVars ( FloatArray & answer, GaussPoint * gp, const FloatArray & strainSpaceHardeningVariables ) const

protectedpure virtual

Implemented in oofem::J2MPlasticMaterial, and oofem::RankinePlasticMaterial.

Referenced by closestPointReturn(), cuttingPlaneReturn(), giveConsistentStiffnessMatrix(), and giveElastoPlasticStiffnessMatrix().

computeStressSpaceHardeningVarsReducedGradient()

virtual void oofem::MPlasticMaterial::computeStressSpaceHardeningVarsReducedGradient ( FloatArray & answer, functType ftype, int isurf, GaussPoint * gp, const FloatArray & stressVector, const FloatArray & stressSpaceHardeningVars ) const

protectedpure virtual

Implemented in oofem::J2MPlasticMaterial, and oofem::RankinePlasticMaterial.

Referenced by computeGradientVector().

computeTrialStressIncrement()

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

protectedvirtual

Definition at line 734 of file mplasticmaterial.C.

References oofem::FloatArray::beProductOf(), computeReducedElasticModuli(), and oofem::GaussPoint::giveMaterialMode().

Referenced by closestPointReturn(), and cuttingPlaneReturn().

computeYieldValueAt()

virtual double oofem::MPlasticMaterial::computeYieldValueAt ( GaussPoint * gp, int isurf, const FloatArray & stressVector, const FloatArray & stressSpaceHardeningVars ) const

protectedpure virtual

Implemented in oofem::J2MPlasticMaterial, and oofem::RankinePlasticMaterial.

Referenced by closestPointReturn(), and cuttingPlaneReturn().

CreateStatus()

std::unique_ptr< MaterialStatus > oofem::MPlasticMaterial::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.

Reimplemented in oofem::RankinePlasticMaterial.

Definition at line 75 of file mplasticmaterial.C.

References giveSizeOfReducedHardeningVarsVector().

cuttingPlaneReturn()

void oofem::MPlasticMaterial::cuttingPlaneReturn ( FloatArray & answer, IntArray & activeConditionMap, FloatArray & gamma, GaussPoint * gp, const FloatArray & totalStrain, FloatArray & plasticStrainR, FloatArray & strainSpaceHardeningVariables, TimeStep * tStep ) const

protected

Definition at line 404 of file mplasticmaterial.C.

References oofem::FloatArray::add(), associatedPT, oofem::FloatArray::at(), oofem::FloatMatrix::at(), oofem::IntArray::at(), oofem::FloatArray::beTProductOf(), computeGradientVector(), computeHardeningReducedModuli(), computeReducedElasticModuli(), computeStressSpaceHardeningVars(), computeTrialStressIncrement(), computeYieldValueAt(), oofem::GaussPoint::giveElement(), oofem::GaussPoint::giveMaterialMode(), oofem::FEMComponent::giveNumber(), oofem::GaussPoint::giveNumber(), oofem::FloatMatrix::giveNumberOfRows(), oofem::MPlasticMaterialStatus::givePlasticStrainVector(), oofem::Material::giveStatus(), oofem::MPlasticMaterialStatus::giveStrainSpaceHardeningVars(), oofem::StructuralMaterialStatus::giveStressVector(), loadFunction, nonassociatedPT, nsurf, OOFEM_WARNING, PLASTIC_MATERIAL_MAX_ITERATIONS, plType, oofem::FloatArray::resize(), oofem::FloatMatrix::resize(), oofem::FloatMatrix::solveForRhs(), oofem::FloatArray::subtract(), YIELD_TOL, yieldFunction, oofem::FloatArray::zero(), oofem::FloatMatrix::zero(), and oofem::IntArray::zero().

Referenced by giveRealStressVector().

give1dStressStiffMtrx()

FloatMatrixF< 1, 1 > oofem::MPlasticMaterial::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 1238 of file mplasticmaterial.C.

References giveConsistentStiffnessMatrix(), giveElastoPlasticStiffnessMatrix(), linearElasticMaterial, MPlasticMaterial(), mpm_ClosestPoint, and rmType.

give2dBeamLayerStiffMtrx()

FloatMatrixF< 2, 2 > oofem::MPlasticMaterial::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 1259 of file mplasticmaterial.C.

References giveConsistentStiffnessMatrix(), giveElastoPlasticStiffnessMatrix(), linearElasticMaterial, MPlasticMaterial(), mpm_ClosestPoint, and rmType.

give3dMaterialStiffnessMatrix()

FloatMatrixF< 6, 6 > oofem::MPlasticMaterial::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 1150 of file mplasticmaterial.C.

References giveConsistentStiffnessMatrix(), giveElastoPlasticStiffnessMatrix(), linearElasticMaterial, mpm_ClosestPoint, and rmType.

giveClassName()

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

inlineoverridevirtual

Returns

Class name of the receiver.

Implements oofem::FEMComponent.

Reimplemented in oofem::RankinePlasticMaterial.

Definition at line 160 of file mplasticmaterial.h.

giveConsistentStiffnessMatrix()

FloatMatrix oofem::MPlasticMaterial::giveConsistentStiffnessMatrix ( MatResponseMode mode, GaussPoint * gp, TimeStep * tStep ) const

protectedvirtual

Definition at line 823 of file mplasticmaterial.C.

References associatedPT, oofem::FloatMatrix::at(), oofem::IntArray::at(), oofem::FloatMatrix::beInverseOf(), oofem::FloatMatrix::beProductOf(), oofem::FloatMatrix::beProductTOf(), oofem::FloatMatrix::beSubMatrixOf(), oofem::FloatMatrix::clear(), computeAlgorithmicModuli(), computeGradientVector(), computeHardeningReducedModuli(), computeReducedElasticModuli(), computeStressSpaceHardeningVars(), oofem::GaussPoint::giveMaterialMode(), oofem::FloatMatrix::giveNumberOfColumns(), oofem::FloatMatrix::giveNumberOfRows(), oofem::Material::giveStatus(), oofem::MPlasticMaterialStatus::giveStrainSpaceHardeningVars(), oofem::StructuralMaterialStatus::giveStressVector(), oofem::MPlasticMaterialStatus::giveTempActiveConditionMap(), oofem::MPlasticMaterialStatus::giveTempGamma(), oofem::MPlasticMaterialStatus::giveTempStateFlag(), linearElasticMaterial, loadFunction, nonassociatedPT, nsurf, plType, oofem::FloatMatrix::resize(), oofem::FloatMatrix::subtract(), and yieldFunction.

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

giveElastoPlasticStiffnessMatrix()

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

protectedvirtual

Definition at line 973 of file mplasticmaterial.C.

References oofem::FloatMatrix::add(), associatedPT, oofem::FloatMatrix::at(), oofem::IntArray::at(), oofem::FloatMatrix::beInverseOf(), oofem::FloatMatrix::beProductOf(), oofem::FloatMatrix::beProductTOf(), oofem::FloatMatrix::beTProductOf(), computeGradientVector(), computeHardeningReducedModuli(), computeReducedElasticModuli(), computeStressSpaceHardeningVars(), oofem::GaussPoint::giveMaterialMode(), oofem::FloatMatrix::giveNumberOfRows(), oofem::Material::giveStatus(), oofem::MPlasticMaterialStatus::giveStrainSpaceHardeningVars(), oofem::StructuralMaterialStatus::giveStressVector(), oofem::MPlasticMaterialStatus::giveTempActiveConditionMap(), oofem::MPlasticMaterialStatus::giveTempStateFlag(), linearElasticMaterial, loadFunction, oofem::FloatMatrix::negated(), nonassociatedPT, nsurf, plType, oofem::FloatMatrix::resize(), yieldFunction, and oofem::FloatMatrix::zero().

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

giveFiberStiffMtrx()

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

overrideprotectedvirtual

Method for computing 1d fiber stiffness matrix of receiver. Default implementation computes 3d stiffness matrix using give3dMaterialStiffnessMatrix and reduces it to 1d fiber 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 1307 of file mplasticmaterial.C.

References giveConsistentStiffnessMatrix(), giveElastoPlasticStiffnessMatrix(), linearElasticMaterial, MPlasticMaterial(), mpm_ClosestPoint, and rmType.

giveIPValue()

int oofem::MPlasticMaterial::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 1331 of file mplasticmaterial.C.

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

giveLinearElasticMaterial()

LinearElasticMaterial * oofem::MPlasticMaterial::giveLinearElasticMaterial ( )

inline

Returns reference to undamaged (bulk) material.

Definition at line 163 of file mplasticmaterial.h.

References linearElasticMaterial.

givePlaneStrainStiffMtrx()

FloatMatrixF< 4, 4 > oofem::MPlasticMaterial::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 1215 of file mplasticmaterial.C.

References giveConsistentStiffnessMatrix(), giveElastoPlasticStiffnessMatrix(), linearElasticMaterial, mpm_ClosestPoint, and rmType.

givePlaneStressStiffMtrx()

FloatMatrixF< 3, 3 > oofem::MPlasticMaterial::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 1190 of file mplasticmaterial.C.

References giveConsistentStiffnessMatrix(), giveElastoPlasticStiffnessMatrix(), linearElasticMaterial, mpm_ClosestPoint, and rmType.

givePlateLayerStiffMtrx()

FloatMatrixF< 5, 5 > oofem::MPlasticMaterial::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 1283 of file mplasticmaterial.C.

References giveConsistentStiffnessMatrix(), giveElastoPlasticStiffnessMatrix(), linearElasticMaterial, MPlasticMaterial(), mpm_ClosestPoint, and rmType.

giveRealStressVector()

void oofem::MPlasticMaterial::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 82 of file mplasticmaterial.C.

References oofem::FloatArray::at(), closestPointReturn(), cuttingPlaneReturn(), oofem::MPlasticMaterialStatus::giveStateFlag(), oofem::Material::giveStatus(), oofem::StructuralMaterial::giveStressDependentPartOfStrainVector(), oofem::StructuralMaterialStatus::giveTempStressVector(), oofem::Material::initTempStatus(), oofem::MPlasticMaterialStatus::letTempPlasticStrainVectorBe(), oofem::MPlasticMaterialStatus::letTempStateFlagBe(), oofem::MPlasticMaterialStatus::letTempStrainSpaceHardeningVarsVectorBe(), oofem::StructuralMaterialStatus::letTempStrainVectorBe(), oofem::StructuralMaterialStatus::letTempStressVectorBe(), mpm_ClosestPoint, nsurf, rmType, oofem::MPlasticMaterialStatus::setTempActiveConditionMap(), and oofem::MPlasticMaterialStatus::setTempGamma().

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

giveRealStressVector_1d()

FloatArrayF< 1 > oofem::MPlasticMaterial::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 195 of file mplasticmaterial.h.

References giveRealStressVector(), and MPlasticMaterial().

giveRealStressVector_3d()

FloatArrayF< 6 > oofem::MPlasticMaterial::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 177 of file mplasticmaterial.h.

References giveRealStressVector(), and MPlasticMaterial().

giveRealStressVector_PlaneStrain()

FloatArrayF< 4 > oofem::MPlasticMaterial::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 183 of file mplasticmaterial.h.

References giveRealStressVector(), and MPlasticMaterial().

giveRealStressVector_PlaneStress()

FloatArrayF< 3 > oofem::MPlasticMaterial::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 189 of file mplasticmaterial.h.

References giveRealStressVector(), and MPlasticMaterial().

giveSizeOfFullHardeningVarsVector()

virtual int oofem::MPlasticMaterial::giveSizeOfFullHardeningVarsVector ( ) const

inlinevirtual

Reimplemented in oofem::J2MPlasticMaterial.

Definition at line 205 of file mplasticmaterial.h.

giveSizeOfReducedHardeningVarsVector()

virtual int oofem::MPlasticMaterial::giveSizeOfReducedHardeningVarsVector ( GaussPoint * ) const

inlinevirtual

Reimplemented in oofem::J2MPlasticMaterial.

Definition at line 206 of file mplasticmaterial.h.

Referenced by CreateStatus(), and oofem::RankinePlasticMaterial::CreateStatus().

hasHardening()

virtual int oofem::MPlasticMaterial::hasHardening ( ) const

inlineprotectedvirtual

Reimplemented in oofem::J2MPlasticMaterial, and oofem::RankinePlasticMaterial.

Definition at line 256 of file mplasticmaterial.h.

Referenced by computeAlgorithmicModuli().

hasMaterialModeCapability()

bool oofem::MPlasticMaterial::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 60 of file mplasticmaterial.C.

isCharacteristicMtrxSymmetric()

bool oofem::MPlasticMaterial::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 169 of file mplasticmaterial.h.

Member Data Documentation

linearElasticMaterial

LinearElasticMaterial* oofem::MPlasticMaterial::linearElasticMaterial = nullptr

protected

Reference to bulk (undamaged) material.

Definition at line 145 of file mplasticmaterial.h.

Referenced by oofem::J2MPlasticMaterial::compute3dElasticModuli(), computeReducedElasticModuli(), give1dStressStiffMtrx(), give2dBeamLayerStiffMtrx(), give3dMaterialStiffnessMatrix(), giveConsistentStiffnessMatrix(), giveElastoPlasticStiffnessMatrix(), giveFiberStiffMtrx(), giveLinearElasticMaterial(), givePlaneStrainStiffMtrx(), givePlaneStressStiffMtrx(), givePlateLayerStiffMtrx(), oofem::J2MPlasticMaterial::initializeFrom(), oofem::RankinePlasticMaterial::initializeFrom(), oofem::J2MPlasticMaterial::J2MPlasticMaterial(), oofem::RankinePlasticMaterial::RankinePlasticMaterial(), and ~MPlasticMaterial().

nsurf

int oofem::MPlasticMaterial::nsurf = 0

protected

Number of yield surfaces.

Definition at line 147 of file mplasticmaterial.h.

Referenced by closestPointReturn(), computeAlgorithmicModuli(), computeResidualVector(), cuttingPlaneReturn(), giveConsistentStiffnessMatrix(), giveElastoPlasticStiffnessMatrix(), giveRealStressVector(), oofem::J2MPlasticMaterial::J2MPlasticMaterial(), and oofem::RankinePlasticMaterial::RankinePlasticMaterial().

plType

enum oofem::MPlasticMaterial::plastType oofem::MPlasticMaterial::plType = associatedPT

protected

Referenced by closestPointReturn(), cuttingPlaneReturn(), giveConsistentStiffnessMatrix(), and giveElastoPlasticStiffnessMatrix().

rmType

enum oofem::MPlasticMaterial::ReturnMappingAlgoType oofem::MPlasticMaterial::rmType = mpm_ClosestPoint

protected

Referenced by give1dStressStiffMtrx(), give2dBeamLayerStiffMtrx(), give3dMaterialStiffnessMatrix(), giveFiberStiffMtrx(), givePlaneStrainStiffMtrx(), givePlaneStressStiffMtrx(), givePlateLayerStiffMtrx(), giveRealStressVector(), oofem::J2MPlasticMaterial::initializeFrom(), and oofem::RankinePlasticMaterial::RankinePlasticMaterial().

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

• mplasticmaterial.h
• mplasticmaterial.C