#include <linearelasticmaterial.h>

Inheritance diagram for oofem::LinearElasticMaterial:

Collaboration diagram for oofem::LinearElasticMaterial:

Public Member Functions
	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
virtual double	giveShearModulus () const
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< 3, 3 >	givePlaneStressStiffMtrx (MatResponseMode mmode, GaussPoint gp, TimeStep tStep) const
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 >	give1dStressStiffMtrx (MatResponseMode mmode, GaussPoint gp, TimeStep tStep) const
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 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
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 Attributes
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.

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 is a abstract base class for all linear elastic material models in a finite element problem. A material is an attribute of a domain. It is usually also attribute of many elements. Efficient implementation of services for obtaining characteristic matrices for several material modes is provided depending on other abstract services. Also general implementation of giveRealStressVector service is provided, computing the stress increment vector from strain increment multiplied by stiffness.

Tasks:

Returning standard material stiffness and flexibility matrices for 3d-case. according to current state determined by using data stored in Gausspoint.
Returning a material property (method 'give'). Only for non-standard elements.
Returning real stress state vector(tensor) at gauss point for 3d - case.

Definition at line 65 of file linearelasticmaterial.h.

Constructor & Destructor Documentation

◆ LinearElasticMaterial()

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

inline

Constructor.

Definition at line 81 of file linearelasticmaterial.h.

References oofem::StructuralMaterial::StructuralMaterial().

Referenced by oofem::AnisotropicLinearElasticMaterial::AnisotropicLinearElasticMaterial(), oofem::IsotropicLinearElasticMaterial::IsotropicLinearElasticMaterial(), oofem::IsotropicLinearElasticMaterial::IsotropicLinearElasticMaterial(), and oofem::OrthotropicLinearElasticMaterial::OrthotropicLinearElasticMaterial().

Member Function Documentation

◆ computesSubTangents()

void oofem::LinearElasticMaterial::computesSubTangents ( )

Computes the plane strain and plane stress tangents from the 3D tangent.

Definition at line 62 of file linearelasticmaterial.C.

References oofem::inv(), tangent, tangentPlaneStrain, and tangentPlaneStress.

Referenced by oofem::AnisotropicLinearElasticMaterial::initializeFrom(), oofem::OrthotropicLinearElasticMaterial::initializeFrom(), and oofem::IsotropicLinearElasticMaterial::initTangents().

◆ CreateStatus()

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

overridevirtual

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

Parameters

gp	Integration point where newly created status will be stored.

Returns: Reference to new status.

Reimplemented from oofem::Material.

Definition at line 420 of file linearelasticmaterial.C.

◆ give3dMaterialStiffnessMatrix()

FloatMatrixF< 6, 6 > oofem::LinearElasticMaterial::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.

Reimplemented in oofem::OrthotropicLinearElasticMaterial.

Definition at line 82 of file linearelasticmaterial.C.

References oofem::TimeStep::giveIntrinsicTime(), preCastStiffnessReduction, and tangent.

Referenced by giveRealStressVector_3d(), and giveRealStressVector_3dDegeneratedShell().

◆ giveAlpha()

const FloatArrayF< 6 > & oofem::LinearElasticMaterial::giveAlpha ( ) const

inline

Definition at line 87 of file linearelasticmaterial.h.

References alpha.

◆ giveClassName()

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

inlineoverridevirtual

Returns: Class name of the receiver.

Implements oofem::FEMComponent.

Reimplemented in oofem::OrthotropicLinearElasticMaterial.

Definition at line 116 of file linearelasticmaterial.h.

◆ giveEnergyDensity()

double oofem::LinearElasticMaterial::giveEnergyDensity	(	GaussPoint *	gp,
		TimeStep *	tStep )

Definition at line 386 of file linearelasticmaterial.C.

References oofem::FloatArray::dotProduct(), oofem::Material::giveStatus(), oofem::StructuralMaterialStatus::giveTempStrainVector(), and oofem::StructuralMaterialStatus::giveTempStressVector().

Referenced by giveEshelbyStressVector_PlaneStrain(), and giveIPValue().

◆ giveEshelbyStressVector_PlaneStrain()

void oofem::LinearElasticMaterial::giveEshelbyStressVector_PlaneStrain	(	FloatArray &	answer,
		GaussPoint *	gp,
		const FloatArray &	reducedF,
		TimeStep *	tStep )

overridevirtual

Prototype for computation of Eshelby stress. No default implementation is provided.

Reimplemented from oofem::StructuralMaterial.

Definition at line 345 of file linearelasticmaterial.C.

References oofem::FloatMatrix::beMatrixForm(), oofem::FloatMatrix::beMatrixFormOfStress(), oofem::FloatMatrix::beTProductOf(), oofem::FloatArray::beVectorForm(), giveEnergyDensity(), oofem::Material::giveStatus(), oofem::StructuralMaterialStatus::giveTempStressVector(), and oofem::FloatMatrix::negated().

◆ giveInputRecord()

void oofem::LinearElasticMaterial::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.

Reimplemented in oofem::OrthotropicLinearElasticMaterial.

Definition at line 55 of file linearelasticmaterial.C.

References _IFT_LinearElasticMaterial_preCastStiffRed, preCastStiffnessReduction, and oofem::DynamicInputRecord::setField().

◆ giveIPValue()

int oofem::LinearElasticMaterial::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.

Reimplemented from oofem::Material.

Definition at line 396 of file linearelasticmaterial.C.

References oofem::FloatArray::at(), oofem::StructuralMaterial::computeStressIndependentStrainVector_3d(), giveEnergyDensity(), oofem::Material::giveStatus(), oofem::StructuralMaterialStatus::giveStrainVector(), oofem::StructuralMaterial::giveStressDependentPartOfStrainVector(), oofem::FloatArray::resize(), and oofem::FloatArray::zero().

◆ giveRealStressVector_1d()

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

overridevirtual

Default implementation relies on giveRealStressVector_StressControl.

Reimplemented from oofem::StructuralMaterial.

Definition at line 194 of file linearelasticmaterial.C.

References oofem::FloatArray::add(), oofem::FloatArray::beProductOf(), oofem::Material::castingTime, oofem::StructuralMaterial::give1dStressStiffMtrx(), oofem::Material::giveStatus(), and oofem::StructuralMaterial::giveStressDependentPartOfStrainVector().

◆ giveRealStressVector_2dBeamLayer()

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

overridevirtual

Default implementation relies on giveRealStressVector_StressControl.

Reimplemented from oofem::StructuralMaterial.

Definition at line 265 of file linearelasticmaterial.C.

References oofem::FloatArray::add(), oofem::FloatArray::beDifferenceOf(), oofem::FloatArray::beProductOf(), oofem::Material::castingTime, oofem::StructuralMaterial::give2dBeamLayerStiffMtrx(), oofem::Material::giveStatus(), and oofem::StructuralMaterial::giveStressDependentPartOfStrainVector().

◆ giveRealStressVector_3d()

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

overridevirtual

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

Reimplemented from oofem::StructuralMaterial.

Definition at line 102 of file linearelasticmaterial.C.

References oofem::Material::castingTime, oofem::StructuralMaterial::computeStressIndependentStrainVector_3d(), oofem::dot(), give3dMaterialStiffnessMatrix(), and oofem::Material::giveStatus().

◆ giveRealStressVector_3dDegeneratedShell()

FloatArrayF< 6 > oofem::LinearElasticMaterial::giveRealStressVector_3dDegeneratedShell	(	const FloatArrayF< 6 > &	reducedF,
		GaussPoint *	gp,
		TimeStep *	tStep ) const

virtual

Todo: Should this be virtual? It's never used. It's not part of the base class.

Definition at line 128 of file linearelasticmaterial.C.

References oofem::Material::castingTime, oofem::StructuralMaterial::computeStressIndependentStrainVector_3d(), oofem::dot(), give3dMaterialStiffnessMatrix(), and oofem::Material::giveStatus().

◆ giveRealStressVector_Fiber()

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

overridevirtual

Default implementation relies on giveRealStressVector_StressControl.

Reimplemented from oofem::StructuralMaterial.

Definition at line 319 of file linearelasticmaterial.C.

References oofem::FloatArray::add(), oofem::FloatArray::beProductOf(), oofem::Material::castingTime, oofem::StructuralMaterial::giveFiberStiffMtrx(), oofem::Material::giveStatus(), and oofem::StructuralMaterial::giveStressDependentPartOfStrainVector().

◆ giveRealStressVector_PlaneStress()

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

overridevirtual

Default implementation relies on giveRealStressVector_StressControl.

Reimplemented from oofem::StructuralMaterial.

Definition at line 167 of file linearelasticmaterial.C.

References oofem::FloatArray::add(), oofem::FloatArray::beProductOf(), oofem::Material::castingTime, oofem::StructuralMaterial::givePlaneStressStiffMtrx(), oofem::Material::giveStatus(), and oofem::StructuralMaterial::giveStressDependentPartOfStrainVector().

◆ giveRealStressVector_PlateLayer()

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

overridevirtual

Default implementation relies on giveRealStressVector_StressControl.

Reimplemented from oofem::StructuralMaterial.

Definition at line 292 of file linearelasticmaterial.C.

References oofem::FloatArray::add(), oofem::FloatArray::beDifferenceOf(), oofem::FloatArray::beProductOf(), oofem::Material::castingTime, oofem::StructuralMaterial::givePlateLayerStiffMtrx(), oofem::Material::giveStatus(), and oofem::StructuralMaterial::giveStressDependentPartOfStrainVector().

◆ giveRealStressVector_Warping()

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

overridevirtual

Default implementation relies on giveRealStressVector_StressControl.

Todo: Why is this warping method implemented here? It seems to assume isotropic linear elastic material, so it should be implemented in the subclass instead of relying on "giveShearModulus" which is only implemented there anyway.

Reimplemented from oofem::StructuralMaterial.

Definition at line 220 of file linearelasticmaterial.C.

References oofem::FloatArray::at(), oofem::FloatArrayF< N >::at(), oofem::FloatArray::beDifferenceOf(), oofem::Material::castingTime, oofem::Element::computeGlobalCoordinates(), oofem::GaussPoint::giveElement(), oofem::TimeStep::giveIntrinsicTime(), oofem::GaussPoint::giveNaturalCoordinates(), giveShearModulus(), oofem::Material::giveStatus(), and preCastStiffnessReduction.

◆ giveShearModulus()

virtual double oofem::LinearElasticMaterial::giveShearModulus ( ) const

inlinevirtual

Todo: This makes no sense in this base class, it should belong to isotropiclinearelastic material.

Reimplemented in oofem::IsotropicLinearElasticMaterial.

Definition at line 114 of file linearelasticmaterial.h.

Referenced by giveRealStressVector_Warping().

◆ giveTangent()

const FloatMatrixF< 6, 6 > & oofem::LinearElasticMaterial::giveTangent ( ) const

inline

Definition at line 86 of file linearelasticmaterial.h.

References tangent.

◆ giveThermalDilatationVector()

FloatArrayF< 6 > oofem::LinearElasticMaterial::giveThermalDilatationVector	(	GaussPoint *	gp,
		TimeStep *	tStep ) const

overridevirtual

Returns a vector of coefficients of thermal dilatation in direction of each material principal (local) axis.

Parameters

answer	Vector of thermal dilatation coefficients.
gp	Integration point.
tStep	Time step (most models are able to respond only when tStep is current time step).

Reimplemented from oofem::StructuralMaterial.

Reimplemented in oofem::OrthotropicLinearElasticMaterial.

Definition at line 95 of file linearelasticmaterial.C.

References alpha.

◆ hasCastingTimeSupport()

bool oofem::LinearElasticMaterial::hasCastingTimeSupport ( ) const

inlineoverridevirtual

Tests if material supports casting time

Returns: Nonzero if supported, zero otherwise.

Reimplemented from oofem::Material.

Definition at line 115 of file linearelasticmaterial.h.

◆ initializeFrom()

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

overridevirtual

Initializes receiver according to object description stored in input record. This function is called immediately after creating object using constructor. Input record can be imagined as data record in component database belonging to receiver. Receiver may use value-name extracting functions to extract particular field from record. Note that initializeFrom may be called mutiple times.

See also: IR_GIVE_FIELD; IR_GIVE_OPTIONAL_FIELD

Parameters

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

Reimplemented from oofem::FEMComponent.

Reimplemented in oofem::OrthotropicLinearElasticMaterial.

Definition at line 45 of file linearelasticmaterial.C.

References _IFT_LinearElasticMaterial_preCastStiffRed, IR_GIVE_OPTIONAL_FIELD, and preCastStiffnessReduction.

Member Data Documentation

◆ alpha

FloatArrayF<6> oofem::LinearElasticMaterial::alpha

protected

Thermal expansion.

Definition at line 77 of file linearelasticmaterial.h.

Referenced by giveAlpha(), oofem::AnisotropicLinearElasticMaterial::giveInputRecord(), giveThermalDilatationVector(), oofem::OrthotropicLinearElasticMaterial::giveThermalDilatationVector(), oofem::AnisotropicLinearElasticMaterial::initializeFrom(), oofem::OrthotropicLinearElasticMaterial::initializeFrom(), and oofem::IsotropicLinearElasticMaterial::initTangents().

◆ preCastStiffnessReduction

double oofem::LinearElasticMaterial::preCastStiffnessReduction = 0.

protected

artificial isotropic damage to reflect reduction in stiffness for time < castingTime.

Definition at line 69 of file linearelasticmaterial.h.

Referenced by oofem::IsotropicLinearElasticMaterial::give1dStressStiffMtrx(), give3dMaterialStiffnessMatrix(), oofem::OrthotropicLinearElasticMaterial::give3dMaterialStiffnessMatrix(), giveInputRecord(), oofem::IsotropicLinearElasticMaterial::givePlaneStrainStiffMtrx(), oofem::IsotropicLinearElasticMaterial::givePlaneStressStiffMtrx(), giveRealStressVector_Warping(), and initializeFrom().

◆ tangent

FloatMatrixF<6,6> oofem::LinearElasticMaterial::tangent

protected

Preconstructed 3d tangent.

Definition at line 72 of file linearelasticmaterial.h.

Referenced by computesSubTangents(), give3dMaterialStiffnessMatrix(), oofem::OrthotropicLinearElasticMaterial::give3dMaterialStiffnessMatrix(), oofem::AnisotropicLinearElasticMaterial::giveInputRecord(), giveTangent(), oofem::AnisotropicLinearElasticMaterial::initializeFrom(), oofem::OrthotropicLinearElasticMaterial::initializeFrom(), and oofem::IsotropicLinearElasticMaterial::initTangents().

◆ tangentPlaneStrain

FloatMatrixF<4,4> oofem::LinearElasticMaterial::tangentPlaneStrain

protected

Definition at line 73 of file linearelasticmaterial.h.

Referenced by computesSubTangents(), and oofem::IsotropicLinearElasticMaterial::givePlaneStrainStiffMtrx().

◆ tangentPlaneStress

FloatMatrixF<3,3> oofem::LinearElasticMaterial::tangentPlaneStress

protected

Definition at line 74 of file linearelasticmaterial.h.

Referenced by computesSubTangents(), and oofem::IsotropicLinearElasticMaterial::givePlaneStressStiffMtrx().

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

Public Member Functions

Protected Attributes

Additional Inherited Members

Detailed Description

Constructor & Destructor Documentation

◆ LinearElasticMaterial()

Member Function Documentation

◆ computesSubTangents()

◆ CreateStatus()

◆ give3dMaterialStiffnessMatrix()

◆ giveAlpha()

◆ giveClassName()

◆ giveEnergyDensity()

◆ giveEshelbyStressVector_PlaneStrain()

◆ giveInputRecord()

◆ giveIPValue()

◆ giveRealStressVector_1d()

◆ giveRealStressVector_2dBeamLayer()

◆ giveRealStressVector_3d()

◆ giveRealStressVector_3dDegeneratedShell()

◆ giveRealStressVector_Fiber()

◆ giveRealStressVector_PlaneStress()

◆ giveRealStressVector_PlateLayer()

◆ giveRealStressVector_Warping()

◆ giveShearModulus()

◆ giveTangent()

◆ giveThermalDilatationVector()

◆ hasCastingTimeSupport()

◆ initializeFrom()

Member Data Documentation

◆ alpha

◆ preCastStiffnessReduction

◆ tangent

◆ tangentPlaneStrain

◆ tangentPlaneStress