oofem::RankineMat Class Reference

#include <rankinemat.h>

Inheritance diagram for oofem::RankineMat:

Collaboration diagram for oofem::RankineMat:

Public Member Functions
	RankineMat (int n, Domain *d)
double	evalYieldFunction (const FloatArray &sigPrinc, const double kappa) const
double	evalYieldStress (const double kappa) const
double	evalPlasticModulus (const double kappa) const
void	performPlasticityReturn (GaussPoint *gp, const FloatArray &totalStrain) const
double	computeDamage (GaussPoint *gp, TimeStep *tStep) const
double	computeDamageParam (double tempKappa) const
double	computeDamageParamPrime (double tempKappa) const
virtual double	computeCumPlastStrain (GaussPoint *gp, TimeStep *tStep) const
bool	hasMaterialModeCapability (MaterialMode mode) const override
void	initializeFrom (InputRecord &ir) override
const char *	giveInputRecordName () const override
const char *	giveClassName () const override
LinearElasticMaterial *	giveLinearElasticMaterial ()
	Returns a reference to the basic elastic material.
bool	isCharacteristicMtrxSymmetric (MatResponseMode rMode) const override
std::unique_ptr< MaterialStatus >	CreateStatus (GaussPoint *gp) const override
FloatArrayF< 3 >	giveRealStressVector_PlaneStress (const FloatArrayF< 3 > &reducesStrain, GaussPoint *gp, TimeStep *tStep) const override
	Default implementation relies on giveRealStressVector_StressControl.
FloatArrayF< 1 >	giveRealStressVector_1d (const FloatArrayF< 1 > &totalStrain, GaussPoint *gp, TimeStep *tStep) const override
	Default implementation relies on giveRealStressVector_StressControl.
FloatMatrixF< 1, 1 >	give1dStressStiffMtrx (MatResponseMode mode, GaussPoint *gp, TimeStep *tStep) const override
FloatMatrixF< 3, 3 >	givePlaneStressStiffMtrx (MatResponseMode mode, GaussPoint *gp, TimeStep *tStep) 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 void	giveRealStressVector (FloatArray &answer, GaussPoint *gp, const FloatArray &reducedStrain, TimeStep *tStep) const
virtual FloatArrayF< 6 >	giveRealStressVector_3d (const FloatArrayF< 6 > &strain, GaussPoint *gp, TimeStep *tStep) const
	Default implementation relies on giveRealStressVector for second Piola-Kirchoff stress.
virtual FloatArrayF< 4 >	giveRealStressVector_PlaneStrain (const FloatArrayF< 4 > &strain, GaussPoint *gp, TimeStep *tStep) const
	Default implementation relies on giveRealStressVector_3d.
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 FloatMatrixF< 6, 6 >	give3dMaterialStiffnessMatrix (MatResponseMode mode, GaussPoint *gp, TimeStep *tStep) 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< 4, 4 >	givePlaneStrainStiffMtrx (MatResponseMode mmode, GaussPoint *gp, TimeStep *tStep) const
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< 2, 2 >	give2dBeamLayerStiffMtrx (MatResponseMode mmode, GaussPoint *gp, TimeStep *tStep) const
virtual FloatMatrixF< 5, 5 >	givePlateLayerStiffMtrx (MatResponseMode mmode, GaussPoint *gp, TimeStep *tStep) const
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 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
FloatMatrixF< 3, 3 >	evaluatePlaneStressStiffMtrx (MatResponseMode mode, GaussPoint *gp, TimeStep *tStep, double gprime) const
void	computeEta (FloatArray &answer, RankineMatStatus *status)
	Computes derivatives of final kappa with respect to final strain.
int	giveIPValue (FloatArray &answer, GaussPoint *gp, InternalStateType type, TimeStep *tStep) override

Protected Attributes
LinearElasticMaterial *	linearElasticMaterial = nullptr
	Reference to the basic elastic material.
double	E = 0.
	Young's modulus.
double	nu = 0.
	Poisson's ratio.
double	H0 = 0.
	Initial hardening modulus.
int	plasthardtype = 0
	Type of plastic hardening (0=linear, 1=exponential).
double	delSigY = 0.
	Final increment of yield stress (at infinite cumulative plastic strain).
double	sig0 = 0.
	Initial (uniaxial) yield stress.
double	yieldtol = 0.
	Relative tolerance in yield condition.
double	a = 0.
	Parameter that controls damage evolution (a=0 turns damage off).
double	ep = 0.
	Total strain at peak stress sig0–Used only if plasthardtype=2.
double	md = 0.
	Exponent in hardening law–Used only if plasthardtype=2.
int	damlaw = 1
	type of damage law (0=exponential, 1=exponential and damage starts after peak stress sig0)
double	param1 = 0.
	coefficient required when damlaw=1 or 2
double	param2 = 0.
	coefficient required when damlaw=1 or 2
double	param3 = 0.
	coefficient required when damlaw=2
double	param4 = 0.
	coefficient required when damlaw=2
double	param5 = 0.
	coefficient required when damlaw=2
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 an isotropic elastoplastic material with Rankine yield condition, associated flow rule and linear isotropic softening, and with isotropic damage that leads to softening.

It differs from other similar materials (such as RankinePlasticMaterial) by implementation - here we use an efficient algorithm for this specific model and implement the plane stress case and the vertex return. Also, hardening and softening is incorporated.

Definition at line 85 of file rankinemat.h.

Constructor & Destructor Documentation

RankineMat()

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

Definition at line 52 of file rankinemat.C.

References linearElasticMaterial, and oofem::StructuralMaterial::StructuralMaterial().

Referenced by oofem::RankineMatGrad::RankineMatGrad(), and oofem::RankineMatNl::RankineMatNl().

Member Function Documentation

computeCumPlastStrain()

double oofem::RankineMat::computeCumPlastStrain ( GaussPoint * gp, TimeStep * tStep ) const

virtual

Reimplemented in oofem::RankineMatGrad.

Definition at line 467 of file rankinemat.C.

References oofem::Material::giveStatus(), and oofem::RankineMatStatus::giveTempCumulativePlasticStrain().

Referenced by computeDamage().

computeDamage()

double oofem::RankineMat::computeDamage	(	GaussPoint *	gp,
		TimeStep *	tStep ) const

Definition at line 454 of file rankinemat.C.

References computeCumPlastStrain(), computeDamageParam(), oofem::RankineMatStatus::giveDamage(), and oofem::Material::giveStatus().

Referenced by giveRealStressVector_1d(), giveRealStressVector_PlaneStress(), and oofem::RankineMatGrad::giveRealStressVectorGradientDamage().

computeDamageParam()

double oofem::RankineMat::computeDamageParam

(

double

tempKappa

)

const

Definition at line 416 of file rankinemat.C.

References a, damlaw, ep, H0, param1, param2, param3, param4, param5, and sig0.

Referenced by computeDamage(), and oofem::RankineMatNl::computeDamage().

computeDamageParamPrime()

double oofem::RankineMat::computeDamageParamPrime

(

double

tempKappa

)

const

Definition at line 435 of file rankinemat.C.

References a, damlaw, ep, H0, param1, param2, param3, param4, param5, and sig0.

Referenced by oofem::RankineMatGrad::giveGradientDamageStiffnessMatrix_dd_BN(), oofem::RankineMatGrad::giveGradientDamageStiffnessMatrix_dd_NN(), oofem::RankineMatGrad::giveGradientDamageStiffnessMatrix_du_BB(), oofem::RankineMatGrad::giveGradientDamageStiffnessMatrix_du_NB(), oofem::RankineMatGrad::giveGradientDamageStiffnessMatrix_ud(), oofem::RankineMatGrad::giveGradientDamageStiffnessMatrix_uu(), oofem::RankineMatNl::giveLocalNonlocalStiffnessContribution(), givePlaneStressStiffMtrx(), oofem::RankineMatGrad::givePlaneStressStiffMtrx(), and oofem::RankineMatNl::givePlaneStressStiffMtrx().

computeEta()

void oofem::RankineMat::computeEta ( FloatArray & answer, RankineMatStatus * status )

protected

Computes derivatives of final kappa with respect to final strain.

Definition at line 587 of file rankinemat.C.

References oofem::FloatArray::at(), oofem::FloatArray::beProductOf(), oofem::StressVector::computePrincipalValDir(), E, evalPlasticModulus(), oofem::RankineMatStatus::giveDKappa(), oofem::StructuralMaterial::givePlaneStressVectorTranformationMtrx(), oofem::RankineMatStatus::giveTempCumulativePlasticStrain(), oofem::RankineMatStatus::giveTempEffectiveStress(), and nu.

Referenced by oofem::RankineMatNl::giveRemoteNonlocalStiffnessContribution().

CreateStatus()

std::unique_ptr< MaterialStatus > oofem::RankineMat::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::RankineMatGrad, and oofem::RankineMatNl.

Definition at line 146 of file rankinemat.C.

evalPlasticModulus()

double oofem::RankineMat::evalPlasticModulus

(

const double

kappa

)

const

Definition at line 241 of file rankinemat.C.

References delSigY, E, ep, H0, md, and plasthardtype.

Referenced by computeEta(), evaluatePlaneStressStiffMtrx(), oofem::RankineMatGrad::giveGradientDamageStiffnessMatrix_du(), oofem::RankineMatGrad::giveGradientDamageStiffnessMatrix_du_BB(), oofem::RankineMatGrad::giveGradientDamageStiffnessMatrix_du_NB(), and performPlasticityReturn().

evaluatePlaneStressStiffMtrx()

FloatMatrixF< 3, 3 > oofem::RankineMat::evaluatePlaneStressStiffMtrx ( MatResponseMode mode, GaussPoint * gp, TimeStep * tStep, double gprime ) const

protected

Executive method used by local and gradient version. (with different parameters gprime)

Definition at line 502 of file rankinemat.C.

References oofem::FloatArray::at(), oofem::FloatMatrixF< N, M >::at(), oofem::StressVector::computePrincipalValDir(), E, evalPlasticModulus(), oofem::RankineMatStatus::giveCumulativePlasticStrain(), oofem::StructuralMaterial::givePlaneStressVectorTranformationMtrx(), oofem::Material::giveStatus(), linearElasticMaterial, nu, and oofem::unrotate().

Referenced by oofem::RankineMatGrad::giveGradientDamageStiffnessMatrix_uu(), givePlaneStressStiffMtrx(), oofem::RankineMatGrad::givePlaneStressStiffMtrx(), and oofem::RankineMatNl::givePlaneStressStiffMtrx().

evalYieldFunction()

double oofem::RankineMat::evalYieldFunction	(	const FloatArray &	sigPrinc,
		const double	kappa ) const

Definition at line 211 of file rankinemat.C.

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

Referenced by performPlasticityReturn().

evalYieldStress()

double oofem::RankineMat::evalYieldStress

(

const double

kappa

)

const

Definition at line 218 of file rankinemat.C.

References delSigY, E, ep, H0, md, plasthardtype, and sig0.

Referenced by evalYieldFunction(), and performPlasticityReturn().

give1dStressStiffMtrx()

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

overridevirtual

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 486 of file rankinemat.C.

References E, oofem::Material::giveStatus(), oofem::RankineMatStatus::giveTempDamage(), and OOFEM_ERROR.

giveClassName()

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

inlineoverridevirtual

Returns

Class name of the receiver.

Implements oofem::FEMComponent.

Reimplemented in oofem::RankineMatGrad, and oofem::RankineMatNl.

Definition at line 158 of file rankinemat.h.

giveInputRecordName()

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

inlineoverridevirtual

Returns

Input record name of the receiver.

Implements oofem::FEMComponent.

Reimplemented in oofem::RankineMatGrad, and oofem::RankineMatNl.

Definition at line 157 of file rankinemat.h.

References _IFT_RankineMat_Name.

giveIPValue()

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

overrideprotectedvirtual

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

Fix this value!

Reimplemented from oofem::Material.

Reimplemented in oofem::RankineMatGrad, and oofem::RankineMatNl.

Definition at line 624 of file rankinemat.C.

References oofem::FloatArray::at(), ep, oofem::RankineMatStatus::giveCumulativePlasticStrain(), oofem::RankineMatStatus::giveDamage(), oofem::RankineMatStatus::giveDissWork(), oofem::RankineMatStatus::givePlasDef(), oofem::Material::giveStatus(), oofem::RankineMatStatus::giveStressWork(), oofem::FloatArray::resize(), and oofem::FloatArray::zero().

giveLinearElasticMaterial()

LinearElasticMaterial * oofem::RankineMat::giveLinearElasticMaterial ( )

inline

Returns a reference to the basic elastic material.

Definition at line 161 of file rankinemat.h.

References linearElasticMaterial.

givePlaneStressStiffMtrx()

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

overridevirtual

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.

Reimplemented in oofem::RankineMatGrad, and oofem::RankineMatNl.

Definition at line 475 of file rankinemat.C.

References computeDamageParamPrime(), evaluatePlaneStressStiffMtrx(), oofem::Material::giveStatus(), and oofem::RankineMatStatus::giveTempCumulativePlasticStrain().

giveRealStressVector_1d()

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

overridevirtual

Default implementation relies on giveRealStressVector_StressControl.

Reimplemented from oofem::StructuralMaterial.

Reimplemented in oofem::RankineMatNl.

Definition at line 154 of file rankinemat.C.

References oofem::FloatArray::beScaled(), computeDamage(), E, oofem::Material::giveStatus(), oofem::Material::initTempStatus(), performPlasticityReturn(), and sig0.

giveRealStressVector_PlaneStress()

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

overridevirtual

Default implementation relies on giveRealStressVector_StressControl.

Reimplemented from oofem::StructuralMaterial.

Reimplemented in oofem::RankineMatNl.

Definition at line 182 of file rankinemat.C.

References oofem::FloatArray::beScaled(), computeDamage(), E, oofem::Material::giveStatus(), oofem::Material::initTempStatus(), performPlasticityReturn(), and sig0.

hasMaterialModeCapability()

bool oofem::RankineMat::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.

Reimplemented in oofem::RankineMatGrad.

Definition at line 60 of file rankinemat.C.

initializeFrom()

void oofem::RankineMat::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::Material.

Reimplemented in oofem::RankineMatGrad, and oofem::RankineMatNl.

Definition at line 68 of file rankinemat.C.

References _IFT_RankineMat_a, _IFT_RankineMat_damlaw, _IFT_RankineMat_delsigy, _IFT_RankineMat_ep, _IFT_RankineMat_gf, _IFT_RankineMat_h, _IFT_RankineMat_param1, _IFT_RankineMat_param2, _IFT_RankineMat_param3, _IFT_RankineMat_param4, _IFT_RankineMat_param5, _IFT_RankineMat_plasthardtype, _IFT_RankineMat_sig0, _IFT_RankineMat_yieldtol, a, damlaw, delSigY, E, ep, H0, IR_GIVE_FIELD, IR_GIVE_OPTIONAL_FIELD, linearElasticMaterial, md, nu, OOFEM_ERROR, param1, param2, param3, param4, param5, plasthardtype, sig0, and yieldtol.

isCharacteristicMtrxSymmetric()

bool oofem::RankineMat::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 163 of file rankinemat.h.

References a.

performPlasticityReturn()

void oofem::RankineMat::performPlasticityReturn	(	GaussPoint *	gp,
		const FloatArray &	totalStrain ) const

Definition at line 263 of file rankinemat.C.

References oofem::StrainVector::applyElasticStiffness(), oofem::FloatArray::at(), oofem::FloatMatrix::at(), oofem::StressVector::computePrincipalValDir(), E, evalPlasticModulus(), evalYieldFunction(), evalYieldStress(), oofem::RankineMatStatus::giveCumulativePlasticStrain(), oofem::RankineMatStatus::giveDKappa(), oofem::GaussPoint::giveMaterialMode(), oofem::RankineMatStatus::givePlasticStrain(), oofem::Material::giveStatus(), oofem::RankineMatStatus::letTempEffectiveStressBe(), oofem::RankineMatStatus::letTempPlasticStrainBe(), nu, OOFEM_ERROR, oofem::FloatArray::pY(), oofem::RankineMatStatus::setDKappa(), oofem::RankineMatStatus::setTangentShearStiffness(), oofem::RankineMatStatus::setTempCumulativePlasticStrain(), sig0, oofem::FloatArray::subtract(), and yieldtol.

Referenced by giveRealStressVector_1d(), giveRealStressVector_PlaneStress(), and oofem::RankineMatNl::updateBeforeNonlocAverage().

Member Data Documentation

a

double oofem::RankineMat::a = 0.

protected

Parameter that controls damage evolution (a=0 turns damage off).

Definition at line 113 of file rankinemat.h.

Referenced by computeDamageParam(), computeDamageParamPrime(), initializeFrom(), and isCharacteristicMtrxSymmetric().

damlaw

int oofem::RankineMat::damlaw = 1

protected

type of damage law (0=exponential, 1=exponential and damage starts after peak stress sig0)

Definition at line 122 of file rankinemat.h.

Referenced by computeDamageParam(), computeDamageParamPrime(), and initializeFrom().

delSigY

double oofem::RankineMat::delSigY = 0.

protected

Final increment of yield stress (at infinite cumulative plastic strain).

Definition at line 104 of file rankinemat.h.

Referenced by evalPlasticModulus(), evalYieldStress(), and initializeFrom().

E

double oofem::RankineMat::E = 0.

protected

Young's modulus.

Definition at line 92 of file rankinemat.h.

Referenced by computeEta(), evalPlasticModulus(), evaluatePlaneStressStiffMtrx(), evalYieldStress(), give1dStressStiffMtrx(), oofem::RankineMatGrad::giveGradientDamageStiffnessMatrix_du(), oofem::RankineMatGrad::giveGradientDamageStiffnessMatrix_du_BB(), oofem::RankineMatGrad::giveGradientDamageStiffnessMatrix_du_NB(), giveRealStressVector_1d(), oofem::RankineMatNl::giveRealStressVector_1d(), giveRealStressVector_PlaneStress(), oofem::RankineMatNl::giveRealStressVector_PlaneStress(), oofem::RankineMatGrad::giveRealStressVectorGradientDamage(), initializeFrom(), and performPlasticityReturn().

ep

double oofem::RankineMat::ep = 0.

protected

Total strain at peak stress sig0–Used only if plasthardtype=2.

Definition at line 116 of file rankinemat.h.

Referenced by computeDamageParam(), computeDamageParamPrime(), evalPlasticModulus(), evalYieldStress(), giveIPValue(), and initializeFrom().

H0

double oofem::RankineMat::H0 = 0.

protected

Initial hardening modulus.

Definition at line 98 of file rankinemat.h.

Referenced by computeDamageParam(), computeDamageParamPrime(), evalPlasticModulus(), evalYieldStress(), and initializeFrom().

linearElasticMaterial

LinearElasticMaterial* oofem::RankineMat::linearElasticMaterial = nullptr

protected

Reference to the basic elastic material.

Definition at line 89 of file rankinemat.h.

Referenced by evaluatePlaneStressStiffMtrx(), giveLinearElasticMaterial(), oofem::RankineMatGrad::giveLinearElasticMaterial(), oofem::RankineMatNl::givePlaneStressStiffMtrx(), initializeFrom(), and RankineMat().

md

double oofem::RankineMat::md = 0.

protected

Exponent in hardening law–Used only if plasthardtype=2.

Definition at line 119 of file rankinemat.h.

Referenced by evalPlasticModulus(), evalYieldStress(), and initializeFrom().

nu

double oofem::RankineMat::nu = 0.

protected

Poisson's ratio.

Definition at line 95 of file rankinemat.h.

Referenced by computeEta(), evaluatePlaneStressStiffMtrx(), oofem::RankineMatGrad::giveGradientDamageStiffnessMatrix_du(), oofem::RankineMatGrad::giveGradientDamageStiffnessMatrix_du_BB(), oofem::RankineMatGrad::giveGradientDamageStiffnessMatrix_du_NB(), initializeFrom(), and performPlasticityReturn().

param1

double oofem::RankineMat::param1 = 0.

protected

coefficient required when damlaw=1 or 2

Definition at line 125 of file rankinemat.h.

Referenced by computeDamageParam(), computeDamageParamPrime(), and initializeFrom().

param2

double oofem::RankineMat::param2 = 0.

protected

coefficient required when damlaw=1 or 2

Definition at line 128 of file rankinemat.h.

Referenced by computeDamageParam(), computeDamageParamPrime(), and initializeFrom().

param3

double oofem::RankineMat::param3 = 0.

protected

coefficient required when damlaw=2

Definition at line 131 of file rankinemat.h.

Referenced by computeDamageParam(), computeDamageParamPrime(), and initializeFrom().

param4

double oofem::RankineMat::param4 = 0.

protected

coefficient required when damlaw=2

Definition at line 134 of file rankinemat.h.

Referenced by computeDamageParam(), computeDamageParamPrime(), and initializeFrom().

param5

double oofem::RankineMat::param5 = 0.

protected

coefficient required when damlaw=2

Definition at line 137 of file rankinemat.h.

Referenced by computeDamageParam(), computeDamageParamPrime(), and initializeFrom().

plasthardtype

int oofem::RankineMat::plasthardtype = 0

protected

Type of plastic hardening (0=linear, 1=exponential).

Definition at line 101 of file rankinemat.h.

Referenced by evalPlasticModulus(), evalYieldStress(), and initializeFrom().

sig0

double oofem::RankineMat::sig0 = 0.

protected

Initial (uniaxial) yield stress.

Definition at line 107 of file rankinemat.h.

Referenced by computeDamageParam(), computeDamageParamPrime(), evalYieldStress(), giveRealStressVector_1d(), oofem::RankineMatNl::giveRealStressVector_1d(), giveRealStressVector_PlaneStress(), oofem::RankineMatNl::giveRealStressVector_PlaneStress(), oofem::RankineMatGrad::giveRealStressVectorGradientDamage(), initializeFrom(), and performPlasticityReturn().

yieldtol

double oofem::RankineMat::yieldtol = 0.

protected

Relative tolerance in yield condition.

Definition at line 110 of file rankinemat.h.

Referenced by initializeFrom(), and performPlasticityReturn().

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

• rankinemat.h
• rankinemat.C