#include <isolinearelasticmaterial.h>

Inheritance diagram for oofem::IsotropicLinearElasticMaterial:

Collaboration diagram for oofem::IsotropicLinearElasticMaterial:

Public Member Functions
	IsotropicLinearElasticMaterial (int n, Domain *d)
	IsotropicLinearElasticMaterial (int n, Domain *d, double E, double nu)
const char *	giveClassName () const override
const char *	giveInputRecordName () const override
void	initializeFrom (InputRecord &ir) override
void	giveInputRecord (DynamicInputRecord &input) override
void	saveContext (DataStream &stream, ContextMode mode) override
void	restoreContext (DataStream &stream, ContextMode mode) override
void	initTangents ()
	Initialized fixed size tangents. Called by ctor and initializeFrom.
double	give (int aProperty, GaussPoint *gp) const override
double	giveYoungsModulus () const
	Returns Young's modulus.
double	givePoissonsRatio () const
	Returns Poisson's ratio.
double	giveShearModulus () const override
	Returns the shear elastic modulus \( G = \frac{E}{2(1+\nu)} \).
double	giveBulkModulus () const
	Returns the bulk elastic modulus \( K = \frac{E}{3(1-2\nu)} \).
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
double	giveQcElasticParamneter () override
double	giveQcPlasticParamneter () override
Interface *	giveInterface (InterfaceType t) override
void	giveCharacteristicMatrix (FloatMatrix &answer, MatResponseMode type, GaussPoint gp, TimeStep tStep) const override
void	giveCharacteristicVector (FloatArray &answer, FloatArray &flux, MatResponseMode type, GaussPoint gp, TimeStep tStep) const override
	Returns characteristic vector of the receiver.
void	giveDeviatoric3dMaterialStiffnessMatrix (FloatMatrix &answer, MatResponseMode, GaussPoint gp, TimeStep tStep) const override
void	giveDeviatoricPlaneStrainStiffMtrx (FloatMatrix &answer, MatResponseMode, GaussPoint gp, TimeStep tStep) const override
void	giveInverseOfBulkModulus (double &answer, MatResponseMode mode, GaussPoint gp, TimeStep tStep) override
void	giveRealStressVectorUP_3d (FloatArray &answer, GaussPoint gp, const FloatArray &reducedStrain, double pressure, TimeStep tStep) const override
void	giveRealStressVectorUP_PlaneStrain (FloatArray &answer, GaussPoint gp, const FloatArray &reducedStrain, double pressure, TimeStep tStep) const override
double	giveCharacteristicValue (MatResponseMode type, GaussPoint gp, TimeStep tStep) const override
	Returns characteristic value of the receiver.
Public Member Functions inherited from oofem::LinearElasticMaterial
	LinearElasticMaterial (int n, Domain *d)
	Constructor.
void	initializeFrom (InputRecord &ir) override
void	giveInputRecord (DynamicInputRecord &input) override
const FloatMatrixF< 6, 6 > &	giveTangent () const
const FloatArrayF< 6 > &	giveAlpha () const
void	computesSubTangents ()
FloatMatrixF< 6, 6 >	give3dMaterialStiffnessMatrix (MatResponseMode mode, GaussPoint gp, TimeStep tStep) const override
FloatArrayF< 6 >	giveThermalDilatationVector (GaussPoint gp, 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.
virtual FloatArrayF< 6 >	giveRealStressVector_3dDegeneratedShell (const FloatArrayF< 6 > &reducedF, GaussPoint gp, TimeStep tStep) const
FloatArrayF< 3 >	giveRealStressVector_PlaneStress (const FloatArrayF< 3 > &reducedStrain, GaussPoint gp, TimeStep tStep) const override
	Default implementation relies on giveRealStressVector_StressControl.
FloatArrayF< 1 >	giveRealStressVector_1d (const FloatArrayF< 1 > &reducedStrain, GaussPoint gp, TimeStep tStep) const override
	Default implementation relies on giveRealStressVector_StressControl.
FloatArrayF< 2 >	giveRealStressVector_Warping (const FloatArrayF< 2 > &reducedStrain, GaussPoint gp, TimeStep tStep) const override
	Default implementation relies on giveRealStressVector_StressControl.
FloatArrayF< 2 >	giveRealStressVector_2dBeamLayer (const FloatArrayF< 2 > &reducedE, GaussPoint gp, TimeStep tStep) const override
	Default implementation relies on giveRealStressVector_StressControl.
FloatArrayF< 5 >	giveRealStressVector_PlateLayer (const FloatArrayF< 5 > &reducedE, GaussPoint gp, TimeStep tStep) const override
	Default implementation relies on giveRealStressVector_StressControl.
FloatArrayF< 3 >	giveRealStressVector_Fiber (const FloatArrayF< 3 > &reducedE, GaussPoint gp, TimeStep tStep) const override
	Default implementation relies on giveRealStressVector_StressControl.
void	giveEshelbyStressVector_PlaneStrain (FloatArray &answer, GaussPoint gp, const FloatArray &reducedF, TimeStep tStep) override
double	giveEnergyDensity (GaussPoint gp, TimeStep tStep)
int	giveIPValue (FloatArray &answer, GaussPoint gp, InternalStateType type, TimeStep tStep) override
std::unique_ptr< MaterialStatus >	CreateStatus (GaussPoint *gp) const override
bool	hasCastingTimeSupport () const override
const char *	giveClassName () 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< 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< 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)
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< 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 bool	isCharacteristicMtrxSymmetric (MatResponseMode rMode) 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
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)
std::string	errorInfo (const char *func) const
	Returns string for prepending output (used by error reporting macros).
Public Member Functions inherited from oofem::QCMaterialExtensionInterface
	QCMaterialExtensionInterface ()
virtual	~QCMaterialExtensionInterface ()
	Destructor.
Public Member Functions inherited from oofem::Interface
	Interface ()
	Constructor.
virtual	~Interface ()
Public Member Functions inherited from oofem::MixedPressureMaterialExtensionInterface
	MixedPressureMaterialExtensionInterface (Domain *d)
virtual	~MixedPressureMaterialExtensionInterface ()
	Destructor.
virtual void	giveDeviatoricConstitutiveMatrix (FloatMatrix &answer, MatResponseMode, GaussPoint gp, TimeStep tStep) const
void	giveRealStressVector (FloatArray &answer, GaussPoint gp, const FloatArray &reducedStrain, double pressure, TimeStep tStep) const
virtual void	giveFiniteStrainGeneralizedStressVectors (FloatArray &sigma, GaussPoint gp, const FloatArray &devF, double pressure, TimeStep tStep)

Static Public Member Functions
static double	computeBulkModulusFromYoungAndPoisson (double young, double nu)
static double	computeShearModulusFromYoungAndPoisson (double young, double nu)
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)

Protected Attributes
double	E = 0
	Young's modulus.
double	nu = 0
	Poisson's ratio.
double	G = 0
	Shear modulus.
double	a = 0
	Alpha.
Protected Attributes inherited from oofem::LinearElasticMaterial
double	preCastStiffnessReduction = 0.
	artificial isotropic damage to reflect reduction in stiffness for time < castingTime.
FloatMatrixF< 6, 6 >	tangent
	Preconstructed 3d tangent.
FloatMatrixF< 4, 4 >	tangentPlaneStrain
FloatMatrixF< 3, 3 >	tangentPlaneStress
FloatArrayF< 6 >	alpha
	Thermal expansion.
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.
Protected Attributes inherited from oofem::MixedPressureMaterialExtensionInterface
Domain *	dom = nullptr

Additional Inherited Members
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 linear elastic material in a finite element problem. For large deformation analysis it becomes the St. Venant-Kirchoff hyperelasticity model.

Tasks:

Returning standard material stiffness matrix for 3d-case. according to current state determined by using data stored in Gausspoint.
methods give2dPlaneStressMtrx, givePlaneStrainMtrx, give1dStressMtrx are introduced since form of this matrices is well known, and for faster response mainly in linear elastic problems.
Returning a material property (method 'give'). Only for non-standard elements.
Returning real stress state vector(tensor) at gauss point for 3d - case.

Definition at line 74 of file isolinearelasticmaterial.h.

Constructor & Destructor Documentation

◆ IsotropicLinearElasticMaterial() [1/2]

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

Creates a new IsotropicLinearElasticMaterial class instance with given number belonging to domain d.

Parameters

n	material model number in domain
d	domain which receiver belongs to

Definition at line 48 of file isolinearelasticmaterial.C.

References oofem::LinearElasticMaterial::LinearElasticMaterial(), and oofem::MixedPressureMaterialExtensionInterface::MixedPressureMaterialExtensionInterface().

◆ IsotropicLinearElasticMaterial() [2/2]

oofem::IsotropicLinearElasticMaterial::IsotropicLinearElasticMaterial	(	int	n,
		Domain *	d,
		double	E,
		double	nu )

Creates a new IsotropicLinearElasticMaterial class instance with given number belonging to domain d.

Parameters

n	Material model number in domain.
d	Domain which receiver belongs to.
E	Young modulus.
nu	Poisson ratio.

Definition at line 52 of file isolinearelasticmaterial.C.

References a, E, G, initTangents(), oofem::LinearElasticMaterial::LinearElasticMaterial(), oofem::MixedPressureMaterialExtensionInterface::MixedPressureMaterialExtensionInterface(), and nu.

Member Function Documentation

◆ computeBulkModulusFromYoungAndPoisson()

double oofem::IsotropicLinearElasticMaterial::computeBulkModulusFromYoungAndPoisson	(	double	young,
		double	nu )

inlinestatic

Computes bulk modulus from given Young's modulus and Poisson's ratio.

Parameters

young	Young's modulus ( \( E \)).
nu	Poisson's ratio ( \( \nu \)).

Returns: Bulk modulus ( \( K = E/(3*(1-2*nu) \)).

Definition at line 150 of file isolinearelasticmaterial.h.

References nu.

◆ computeShearModulusFromYoungAndPoisson()

double oofem::IsotropicLinearElasticMaterial::computeShearModulusFromYoungAndPoisson	(	double	young,
		double	nu )

inlinestatic

Computes shear modulus from given Young's modulus and Poisson's ratio.

Parameters

young	Young's modulus ( \( E \)).
nu	Poisson's ratio ( \( \nu \)).

Returns: Shear modulus ( \( G = \frac{E}{2 (1+\nu)} \)).

Definition at line 161 of file isolinearelasticmaterial.h.

References nu.

◆ give()

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

overridevirtual

Returns the value of material property 'aProperty'. Property must be identified by unique int id. Integration point also passed to allow for materials with spatially varying properties

Parameters

aProperty	ID of property requested.
gp	Integration point,

Returns: Property value.

Reimplemented from oofem::Material.

Definition at line 142 of file isolinearelasticmaterial.C.

References E, Ex, Ey, Ez, G, Gxy, Gxz, Gyz, nu, NYxy, NYxz, NYyx, NYyz, NYzx, and NYzy.

◆ give1dStressStiffMtrx()

FloatMatrixF< 1, 1 > oofem::IsotropicLinearElasticMaterial::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 194 of file isolinearelasticmaterial.C.

References E, oofem::TimeStep::giveIntrinsicTime(), and oofem::LinearElasticMaterial::preCastStiffnessReduction.

◆ giveBulkModulus()

double oofem::IsotropicLinearElasticMaterial::giveBulkModulus ( ) const

inline

Returns the bulk elastic modulus \( K = \frac{E}{3(1-2\nu)} \).

Definition at line 133 of file isolinearelasticmaterial.h.

References E, and nu.

Referenced by giveCharacteristicValue().

◆ giveCharacteristicMatrix()

void oofem::IsotropicLinearElasticMaterial::giveCharacteristicMatrix	(	FloatMatrix &	answer,
		MatResponseMode	type,
		GaussPoint *	gp,
		TimeStep *	tStep ) const

overridevirtual

support for mixed u-p formulation

Reimplemented from oofem::Material.

Definition at line 333 of file isolinearelasticmaterial.C.

References oofem::Material::giveCharacteristicMatrix(), and oofem::MixedPressureMaterialExtensionInterface::giveDeviatoricConstitutiveMatrix().

◆ giveCharacteristicValue()

double oofem::IsotropicLinearElasticMaterial::giveCharacteristicValue	(	MatResponseMode	type,
		GaussPoint *	gp,
		TimeStep *	tStep ) const

overridevirtual

Returns characteristic value of the receiver.

Reimplemented from oofem::Material.

Definition at line 305 of file isolinearelasticmaterial.C.

References giveBulkModulus(), and oofem::Material::giveCharacteristicValue().

◆ giveCharacteristicVector()

void oofem::IsotropicLinearElasticMaterial::giveCharacteristicVector	(	FloatArray &	answer,
		FloatArray &	flux,
		MatResponseMode	type,
		GaussPoint *	gp,
		TimeStep *	tStep ) const

overridevirtual

Returns characteristic vector of the receiver.

Reimplemented from oofem::Material.

Definition at line 319 of file isolinearelasticmaterial.C.

References oofem::FloatArray::beProductOf(), oofem::MixedPressureMaterialExtensionInterface::giveDeviatoricConstitutiveMatrix(), oofem::StructuralMaterial::giveRealStressVector(), and OOFEM_ERROR.

◆ giveClassName()

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

inlineoverridevirtual

Returns: Class name of the receiver.

Implements oofem::FEMComponent.

Definition at line 104 of file isolinearelasticmaterial.h.

◆ giveDeviatoric3dMaterialStiffnessMatrix()

void oofem::IsotropicLinearElasticMaterial::giveDeviatoric3dMaterialStiffnessMatrix	(	FloatMatrix &	answer,
		MatResponseMode	mode,
		GaussPoint *	gp,
		TimeStep *	tStep ) const

overridevirtual

Reimplemented from oofem::MixedPressureMaterialExtensionInterface.

Definition at line 213 of file isolinearelasticmaterial.C.

References E, and nu.

Referenced by giveRealStressVectorUP_3d().

◆ giveDeviatoricPlaneStrainStiffMtrx()

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

overridevirtual

Reimplemented from oofem::MixedPressureMaterialExtensionInterface.

Definition at line 239 of file isolinearelasticmaterial.C.

References oofem::FloatMatrix::at(), E, nu, oofem::FloatMatrix::resize(), oofem::FloatMatrix::times(), and oofem::FloatMatrix::zero().

Referenced by giveRealStressVectorUP_PlaneStrain().

◆ giveInputRecord()

void oofem::IsotropicLinearElasticMaterial::giveInputRecord ( DynamicInputRecord & input )

overridevirtual

Setups the input record string of receiver.

Parameters

input Dynamic input record to be filled by receiver.

Reimplemented from oofem::FEMComponent.

Definition at line 91 of file isolinearelasticmaterial.C.

References _IFT_IsotropicLinearElasticMaterial_e, _IFT_IsotropicLinearElasticMaterial_n, _IFT_IsotropicLinearElasticMaterial_talpha, a, E, nu, and oofem::DynamicInputRecord::setField().

◆ giveInputRecordName()

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

inlineoverridevirtual

Returns: Input record name of the receiver.

Implements oofem::FEMComponent.

Definition at line 105 of file isolinearelasticmaterial.h.

References _IFT_IsotropicLinearElasticMaterial_Name.

◆ giveInterface()

Interface * oofem::IsotropicLinearElasticMaterial::giveInterface ( InterfaceType t )

inlineoverridevirtual

Interface requesting service.

See also: InterfaceType

Returns: Requested interface if implemented, otherwise NULL.

Reimplemented from oofem::FEMComponent.

Definition at line 169 of file isolinearelasticmaterial.h.

References oofem::MixedPressureMaterialExtensionInterface::MixedPressureMaterialExtensionInterface(), oofem::MixedPressureMaterialExtensionInterfaceType, oofem::QCMaterialExtensionInterface::QCMaterialExtensionInterface(), and oofem::QCMaterialExtensionInterfaceType.

◆ giveInverseOfBulkModulus()

void oofem::IsotropicLinearElasticMaterial::giveInverseOfBulkModulus	(	double &	answer,
		MatResponseMode	mode,
		GaussPoint *	gp,
		TimeStep *	tStep )

inlineoverridevirtual

Implements oofem::MixedPressureMaterialExtensionInterface.

Definition at line 200 of file isolinearelasticmaterial.h.

References E, and nu.

◆ givePlaneStrainStiffMtrx()

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

overridevirtual

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 181 of file isolinearelasticmaterial.C.

References oofem::TimeStep::giveIntrinsicTime(), oofem::LinearElasticMaterial::preCastStiffnessReduction, and oofem::LinearElasticMaterial::tangentPlaneStrain.

◆ givePlaneStressStiffMtrx()

FloatMatrixF< 3, 3 > oofem::IsotropicLinearElasticMaterial::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.

Definition at line 168 of file isolinearelasticmaterial.C.

References oofem::TimeStep::giveIntrinsicTime(), oofem::LinearElasticMaterial::preCastStiffnessReduction, and oofem::LinearElasticMaterial::tangentPlaneStress.

◆ givePoissonsRatio()

double oofem::IsotropicLinearElasticMaterial::givePoissonsRatio ( ) const

inline

Returns Poisson's ratio.

Definition at line 127 of file isolinearelasticmaterial.h.

References nu.

Referenced by oofem::J2plasticMaterial::giveInputRecord().

◆ giveQcElasticParamneter()

double oofem::IsotropicLinearElasticMaterial::giveQcElasticParamneter ( )

inlineoverridevirtual

Implements oofem::QCMaterialExtensionInterface.

Definition at line 166 of file isolinearelasticmaterial.h.

References E.

◆ giveQcPlasticParamneter()

double oofem::IsotropicLinearElasticMaterial::giveQcPlasticParamneter ( )

inlineoverridevirtual

Implements oofem::QCMaterialExtensionInterface.

Definition at line 167 of file isolinearelasticmaterial.h.

◆ giveRealStressVectorUP_3d()

void oofem::IsotropicLinearElasticMaterial::giveRealStressVectorUP_3d	(	FloatArray &	answer,
		GaussPoint *	gp,
		const FloatArray &	reducedStrain,
		double	pressure,
		TimeStep *	tStep ) const

overridevirtual

Implements oofem::MixedPressureMaterialExtensionInterface.

Definition at line 262 of file isolinearelasticmaterial.C.

References oofem::FloatArray::at(), oofem::FloatArray::beProductOf(), giveDeviatoric3dMaterialStiffnessMatrix(), oofem::Material::giveStatus(), oofem::StructuralMaterial::giveStressDependentPartOfStrainVector(), oofem::StructuralMaterialStatus::letTempStrainVectorBe(), and oofem::StructuralMaterialStatus::letTempStressVectorBe().

◆ giveRealStressVectorUP_PlaneStrain()

void oofem::IsotropicLinearElasticMaterial::giveRealStressVectorUP_PlaneStrain	(	FloatArray &	answer,
		GaussPoint *	gp,
		const FloatArray &	reducedStrain,
		double	pressure,
		TimeStep *	tStep ) const

overridevirtual

Reimplemented from oofem::MixedPressureMaterialExtensionInterface.

Definition at line 284 of file isolinearelasticmaterial.C.

References oofem::FloatArray::at(), oofem::FloatArray::beProductOf(), giveDeviatoricPlaneStrainStiffMtrx(), oofem::Material::giveStatus(), oofem::StructuralMaterial::giveStressDependentPartOfStrainVector(), oofem::StructuralMaterialStatus::letTempStrainVectorBe(), and oofem::StructuralMaterialStatus::letTempStressVectorBe().

◆ giveShearModulus()

double oofem::IsotropicLinearElasticMaterial::giveShearModulus ( ) const

inlineoverridevirtual

Returns the shear elastic modulus \( G = \frac{E}{2(1+\nu)} \).

Reimplemented from oofem::LinearElasticMaterial.

Definition at line 130 of file isolinearelasticmaterial.h.

References G.

◆ giveYoungsModulus()

double oofem::IsotropicLinearElasticMaterial::giveYoungsModulus ( ) const

inline

Returns Young's modulus.

Definition at line 124 of file isolinearelasticmaterial.h.

References E.

Referenced by oofem::J2plasticMaterial::giveInputRecord().

◆ initializeFrom()

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

overridevirtual

Initializes receiver according to object description stored in input record. The E modulus (keyword "E"), Poisson ratio ("nu") and coefficient of thermal dilatation alpha ("talpha") are read. The parent class instanciateFrom method is called.

Reimplemented from oofem::FEMComponent.

Definition at line 65 of file isolinearelasticmaterial.C.

References _IFT_IsotropicLinearElasticMaterial_e, _IFT_IsotropicLinearElasticMaterial_n, _IFT_IsotropicLinearElasticMaterial_talpha, a, E, G, initTangents(), IR_GIVE_FIELD, and nu.