oofem::StructuralFE2Material Class Reference

#include <structuralfe2material.h>

Inheritance diagram for oofem::StructuralFE2Material:

Collaboration diagram for oofem::StructuralFE2Material:

Public Member Functions
	StructuralFE2Material (int n, Domain *d)
void	initializeFrom (InputRecord &ir) override
void	giveInputRecord (DynamicInputRecord &input) override
const char *	giveInputRecordName () const override
const char *	giveClassName () const override
bool	isCharacteristicMtrxSymmetric (MatResponseMode rMode) const override
std::unique_ptr< MaterialStatus >	CreateStatus (GaussPoint *gp) const override
FloatArrayF< 6 >	giveRealStressVector_3d (const FloatArrayF< 6 > &strain, GaussPoint *gp, TimeStep *tStep) const override
	Default implementation relies on giveRealStressVector for second Piola-Kirchoff stress.
FloatArrayF< 3 >	giveRealStressVector_PlaneStress (const FloatArrayF< 3 > &strain, GaussPoint *gp, TimeStep *tStep) const override
	Default implementation relies on giveRealStressVector_StressControl.
FloatMatrixF< 6, 6 >	give3dMaterialStiffnessMatrix (MatResponseMode mode, GaussPoint *gp, TimeStep *tStep) const override
FloatMatrixF< 4, 4 >	givePlaneStrainStiffMtrx (MatResponseMode mode, GaussPoint *gp, TimeStep *tStep) const override
FloatMatrixF< 3, 3 >	givePlaneStressStiffMtrx (MatResponseMode mmode, 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< 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< 1 >	giveRealStressVector_1d (const FloatArrayF< 1 > &reducedE, GaussPoint *gp, TimeStep *tStep) const
	Default implementation relies on giveRealStressVector_StressControl.
virtual FloatArrayF< 2 >	giveRealStressVector_Warping (const FloatArrayF< 2 > &reducedE, GaussPoint *gp, TimeStep *tStep) const
	Default implementation relies on giveRealStressVector_StressControl.
virtual FloatArrayF< 2 >	giveRealStressVector_2dBeamLayer (const FloatArrayF< 2 > &reducedE, GaussPoint *gp, TimeStep *tStep) const
	Default implementation relies on giveRealStressVector_StressControl.
virtual FloatArrayF< 5 >	giveRealStressVector_PlateLayer (const FloatArrayF< 5 > &reducedE, GaussPoint *gp, TimeStep *tStep) const
	Default implementation relies on giveRealStressVector_StressControl.
virtual FloatArrayF< 3 >	giveRealStressVector_Fiber (const FloatArrayF< 3 > &reducedE, GaussPoint *gp, TimeStep *tStep) const
	Default implementation relies on giveRealStressVector_StressControl.
virtual FloatArrayF< 3 >	giveRealStressVector_2dPlateSubSoil (const FloatArrayF< 3 > &reducedE, GaussPoint *gp, TimeStep *tStep) const
	Default implementation is not provided.
virtual FloatArrayF< 6 >	giveRealStressVector_3dBeamSubSoil (const FloatArrayF< 6 > &reducedE, GaussPoint *gp, TimeStep *tStep) const
virtual FloatArrayF< 9 >	giveFirstPKStressVector_3d (const FloatArrayF< 9 > &vF, GaussPoint *gp, TimeStep *tStep) const
	Default implementation relies on giveRealStressVector for second Piola-Kirchoff stress.
virtual FloatArrayF< 5 >	giveFirstPKStressVector_PlaneStrain (const FloatArrayF< 5 > &vF, GaussPoint *gp, TimeStep *tStep) const
	Default implementation relies on giveFirstPKStressVector_3d.
virtual FloatArray	giveFirstPKStressVector_StressControl (const FloatArray &reducedvF, const IntArray &FControl, GaussPoint *gp, TimeStep *tStep) const
	Iteratively calls giveRealStressVector_3d to find the stress controlled equal to zero·
virtual FloatArrayF< 4 >	giveFirstPKStressVector_PlaneStress (const FloatArrayF< 4 > &vF, GaussPoint *gp, TimeStep *tStep) const
	Default implementation relies on giveFirstPKStressVector_StressControl.
virtual FloatArrayF< 1 >	giveFirstPKStressVector_1d (const FloatArrayF< 1 > &vF, GaussPoint *gp, TimeStep *tStep) const
	Default implementation relies on giveFirstPKStressVector_StressControl.
virtual void	giveCauchyStressVector_3d (FloatArray &answer, GaussPoint *gp, const FloatArray &reducedF, TimeStep *tStep)
virtual void	giveCauchyStressVector_PlaneStrain (FloatArray &answer, GaussPoint *gp, const FloatArray &reducedF, TimeStep *tStep)
virtual void	giveCauchyStressVector_PlaneStress (FloatArray &answer, GaussPoint *gp, const FloatArray &reducedF, TimeStep *tStep)
virtual void	giveCauchyStressVector_1d (FloatArray &answer, GaussPoint *gp, const FloatArray &reducedF, TimeStep *tStep)
virtual void	giveEshelbyStressVector_PlaneStrain (FloatArray &answer, GaussPoint *gp, const FloatArray &reducedF, TimeStep *tStep)
virtual FloatArrayF< 6 >	giveThermalDilatationVector (GaussPoint *gp, TimeStep *tStep) const
double	giveReferenceTemperature ()
virtual FloatArray	computeStressIndependentStrainVector (GaussPoint *gp, TimeStep *tStep, ValueModeType mode) const
FloatArrayF< 6 >	computeStressIndependentStrainVector_3d (GaussPoint *gp, TimeStep *tStep, ValueModeType mode) const
virtual void	giveStiffnessMatrix_dPdF (FloatMatrix &answer, MatResponseMode mode, GaussPoint *gp, TimeStep *tStep)
virtual FloatMatrixF< 9, 9 >	give3dMaterialStiffnessMatrix_dPdF (MatResponseMode mode, GaussPoint *gp, TimeStep *tStep) const
virtual void	give3dMaterialStiffnessMatrix_dCde (FloatMatrix &answer, MatResponseMode mode, GaussPoint *gp, TimeStep *tStep)
void	giveStressDependentPartOfStrainVector (FloatArray &answer, GaussPoint *gp, const FloatArray &reducedStrainVector, TimeStep *tStep, ValueModeType mode) const
int	setIPValue (const FloatArray &value, GaussPoint *gp, InternalStateType type) override
int	giveIPValue (FloatArray &answer, GaussPoint *gp, InternalStateType type, TimeStep *tStep) override
virtual FloatMatrixF< 4, 4 >	givePlaneStressStiffnessMatrix_dPdF (MatResponseMode mmode, GaussPoint *gp, TimeStep *tStep) const
virtual void	givePlaneStressStiffMtrx_dCde (FloatMatrix &answer, MatResponseMode mmode, GaussPoint *gp, TimeStep *tStep)
virtual FloatMatrixF< 5, 5 >	givePlaneStrainStiffnessMatrix_dPdF (MatResponseMode mmode, GaussPoint *gp, TimeStep *tStep) const
virtual void	givePlaneStrainStiffMtrx_dCde (FloatMatrix &answer, MatResponseMode mmode, GaussPoint *gp, TimeStep *tStep)
virtual FloatMatrixF< 1, 1 >	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 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 Attributes
std::string	inputfile
bool	useNumTangent = false
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.

Static Protected Attributes
static int	n = 1

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

Multiscale constitutive model for subscale structural problems.

The material uses the PrescribedGradient boundary condition to perform computational homogenization. The requirement for the supplied subscale problem is:

• It must have a PrescribedGradient boundary condition.
• It must be the first boundary condition

Author

Mikael Öhman

Definition at line 120 of file structuralfe2material.h.

Constructor & Destructor Documentation

StructuralFE2Material()

oofem::StructuralFE2Material::StructuralFE2Material	(	int	n,
		Domain *	d )

Definition at line 65 of file structuralfe2material.C.

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

Referenced by give3dMaterialStiffnessMatrix(), givePlaneStressStiffMtrx(), and oofem::StructuralSlipFE2Material::StructuralSlipFE2Material().

Member Function Documentation

CreateStatus()

std::unique_ptr< MaterialStatus > oofem::StructuralFE2Material::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::StructuralSlipFE2Material.

Definition at line 92 of file structuralfe2material.C.

References oofem::FEMComponent::domain, and inputfile.

give3dMaterialStiffnessMatrix()

FloatMatrixF< 6, 6 > oofem::StructuralFE2Material::give3dMaterialStiffnessMatrix ( MatResponseMode mode, GaussPoint * gp, TimeStep * tStep ) const

overridevirtual

Computes full 3d material stiffness matrix at given integration point, time, respecting load history in integration point.

Parameters

answer	Computed results.
mode	Material response mode.
gp	Integration point.
tStep	Time step (most models are able to respond only when tStep is current time step).

Reimplemented from oofem::StructuralMaterial.

Definition at line 147 of file structuralfe2material.C.

References oofem::FloatArray::at(), oofem::FloatArray::beDifferenceOf(), oofem::FloatMatrix::computeFrobeniusNorm(), giveRealStressVector_3d(), oofem::StructuralMaterial::giveReducedSymMatrixForm(), oofem::Material::giveStatus(), oofem::norm(), OOFEM_ERROR, oofem::FloatMatrix::setColumn(), oofem::FloatMatrixF< N, M >::setColumn(), StructuralFE2Material(), oofem::FloatMatrix::subtract(), oofem::FloatMatrix::times(), and useNumTangent.

Referenced by oofem::XfemStructuralElementInterface::computeCohesiveTangent().

giveClassName()

const char * oofem::StructuralFE2Material::giveClassName ( ) const

inlineoverridevirtual

Returns

Class name of the receiver.

Implements oofem::FEMComponent.

Reimplemented in oofem::StructuralSlipFE2Material.

Definition at line 133 of file structuralfe2material.h.

giveInputRecord()

void oofem::StructuralFE2Material::giveInputRecord ( DynamicInputRecord & input )

overridevirtual

Setups the input record string of receiver.

Parameters

input

Dynamic input record to be filled by receiver.

Reimplemented from oofem::Material.

Reimplemented in oofem::StructuralSlipFE2Material.

Definition at line 80 of file structuralfe2material.C.

References _IFT_StructuralFE2Material_fileName, _IFT_StructuralFE2Material_useNumericalTangent, inputfile, oofem::DynamicInputRecord::setField(), and useNumTangent.

giveInputRecordName()

const char * oofem::StructuralFE2Material::giveInputRecordName ( ) const

inlineoverridevirtual

Returns

Input record name of the receiver.

Implements oofem::FEMComponent.

Reimplemented in oofem::StructuralSlipFE2Material.

Definition at line 132 of file structuralfe2material.h.

References _IFT_StructuralFE2Material_Name.

givePlaneStrainStiffMtrx()

FloatMatrixF< 4, 4 > oofem::StructuralFE2Material::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).

The plane-strain version of the tangent is overloaded primarily for performance when using the numerical tangent.

Reimplemented from oofem::StructuralMaterial.

Definition at line 238 of file structuralfe2material.C.

References oofem::StructuralMaterial::giveRealStressVector_PlaneStrain(), oofem::Material::giveStatus(), oofem::FloatMatrixF< N, M >::setColumn(), and useNumTangent.

givePlaneStressStiffMtrx()

FloatMatrixF< 3, 3 > oofem::StructuralFE2Material::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::StructuralSlipFE2Material.

Definition at line 301 of file structuralfe2material.C.

References oofem::FloatMatrix::beSubMatrixOf(), giveRealStressVector_PlaneStress(), oofem::Material::giveStatus(), oofem::FloatMatrixF< N, M >::setColumn(), StructuralFE2Material(), and useNumTangent.

Referenced by oofem::StructuralSlipFE2Material::givePlaneStressStiffMtrx().

giveRealStressVector_3d()

FloatArrayF< 6 > oofem::StructuralFE2Material::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 104 of file structuralfe2material.C.

References oofem::XfemStructureManager::computeTotalCrackLength(), oofem::FEMComponent::giveDomain(), oofem::FloatArray::giveSize(), and oofem::Material::giveStatus().

Referenced by oofem::XfemStructuralElementInterface::computeCohesiveForces(), and give3dMaterialStiffnessMatrix().

giveRealStressVector_PlaneStress()

FloatArrayF< 3 > oofem::StructuralFE2Material::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::StructuralSlipFE2Material.

Definition at line 269 of file structuralfe2material.C.

References oofem::Material::giveStatus(), and oofem::StructuralFE2MaterialStatus::setTimeStep().

Referenced by givePlaneStressStiffMtrx().

initializeFrom()

void oofem::StructuralFE2Material::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::StructuralSlipFE2Material.

Definition at line 70 of file structuralfe2material.C.

References _IFT_StructuralFE2Material_fileName, _IFT_StructuralFE2Material_useNumericalTangent, oofem::InputRecord::hasField(), inputfile, IR_GIVE_FIELD, and useNumTangent.

isCharacteristicMtrxSymmetric()

bool oofem::StructuralFE2Material::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 134 of file structuralfe2material.h.

Member Data Documentation

inputfile

std::string oofem::StructuralFE2Material::inputfile

protected

Definition at line 123 of file structuralfe2material.h.

Referenced by CreateStatus(), oofem::StructuralSlipFE2Material::CreateStatus(), giveInputRecord(), and initializeFrom().

n

int oofem::StructuralFE2Material::n = 1

staticprotected

Definition at line 124 of file structuralfe2material.h.

Referenced by StructuralFE2Material(), and oofem::StructuralSlipFE2Material::StructuralSlipFE2Material().

useNumTangent

bool oofem::StructuralFE2Material::useNumTangent = false

protected

Definition at line 125 of file structuralfe2material.h.

Referenced by give3dMaterialStiffnessMatrix(), giveInputRecord(), givePlaneStrainStiffMtrx(), givePlaneStressStiffMtrx(), oofem::StructuralSlipFE2Material::givePlaneStressStiffMtrx(), oofem::StructuralSlipFE2Material::giveSensitivities(), and initializeFrom().

---

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

• structuralfe2material.h
• structuralfe2material.C