#include <rheoChM.h>

Inheritance diagram for oofem::RheoChainMaterial:

Collaboration diagram for oofem::RheoChainMaterial:

Public Member Functions
	RheoChainMaterial (int n, Domain *d)
virtual	~RheoChainMaterial ()
void	giveRealStressVector (FloatArray &answer, GaussPoint gp, const FloatArray &reducedStrain, TimeStep tStep) const override
FloatArrayF< 6 >	giveRealStressVector_3d (const FloatArrayF< 6 > &strain, GaussPoint gp, TimeStep tStep) const override
	Default implementation relies on giveRealStressVector for second Piola-Kirchoff stress.
FloatArrayF< 4 >	giveRealStressVector_PlaneStrain (const FloatArrayF< 4 > &strain, GaussPoint gp, TimeStep tStep) const override
	Default implementation relies on giveRealStressVector_3d.
FloatArrayF< 3 >	giveRealStressVector_PlaneStress (const FloatArrayF< 3 > &strain, GaussPoint gp, TimeStep tStep) const override
	Default implementation relies on giveRealStressVector_StressControl.
FloatArrayF< 1 >	giveRealStressVector_1d (const FloatArrayF< 1 > &strain, GaussPoint gp, TimeStep tStep) const override
	Default implementation relies on giveRealStressVector_StressControl.
FloatArrayF< 2 >	giveRealStressVector_2dBeamLayer (const FloatArrayF< 2 > &strain, GaussPoint gp, TimeStep tStep) const override
	Default implementation relies on giveRealStressVector_StressControl.
FloatArrayF< 5 >	giveRealStressVector_PlateLayer (const FloatArrayF< 5 > &strain, GaussPoint gp, TimeStep tStep) const override
	Default implementation relies on giveRealStressVector_StressControl.
FloatArrayF< 6 >	giveThermalDilatationVector (GaussPoint gp, TimeStep tStep) const override
virtual double	giveEModulus (GaussPoint gp, TimeStep tStep) const =0
	Evaluation of the incremental modulus.
virtual FloatArray	computeCharCoefficients (double tPrime, GaussPoint gp, TimeStep tStep) const =0
	Evaluation of the moduli of individual units.
bool	hasMaterialModeCapability (MaterialMode mode) const override
bool	hasCastingTimeSupport () const override
const char *	giveClassName () const override
void	initializeFrom (InputRecord &ir) override
int	giveIPValue (FloatArray &answer, GaussPoint gp, InternalStateType type, TimeStep tStep) override
void	saveIPContext (DataStream &stream, ContextMode mode, GaussPoint *gp) override
void	restoreIPContext (DataStream &stream, ContextMode mode, GaussPoint *gp) override
FloatMatrixF< 6, 6 >	give3dMaterialStiffnessMatrix (MatResponseMode mode, GaussPoint gp, TimeStep tStep) const override
FloatMatrixF< 3, 3 >	givePlaneStressStiffMtrx (MatResponseMode mmode, GaussPoint gp, TimeStep tStep) const override
FloatMatrixF< 4, 4 >	givePlaneStrainStiffMtrx (MatResponseMode mmode, GaussPoint gp, TimeStep tStep) const override
FloatMatrixF< 1, 1 >	give1dStressStiffMtrx (MatResponseMode mmode, GaussPoint gp, TimeStep tStep) const override
FloatArray	computeStressIndependentStrainVector (GaussPoint gp, TimeStep tStep, ValueModeType mode) const override
virtual void	giveShrinkageStrainVector (FloatArray &answer, GaussPoint gp, TimeStep tStep, ValueModeType mode) const
virtual void	giveEigenStrainVector (FloatArray &answer, GaussPoint gp, TimeStep tStep, ValueModeType mode) const
std::unique_ptr< MaterialStatus >	CreateStatus (GaussPoint *gp) const override
double	giveAlphaOne () const
double	giveAlphaTwo () const
double	givePoissonsRatio () const
	Returns Poisson's ratio.
virtual double	computeCreepFunction (double t, double t_prime, GaussPoint gp, TimeStep tStep) const =0
	Evaluation of the creep compliance function at time t when loading is acting from time t_prime.
bool	isActivated (TimeStep *tStep) const override
	Extended meaning: returns true if the material is cast (target time > casting time) or the precasing time mat is defined.
virtual double	giveEquivalentTime (GaussPoint gp, TimeStep tStep) const
	By default returns equivalent time in the middle of the time step.
Public Member Functions inherited from oofem::StructuralMaterial
	StructuralMaterial (int n, Domain *d)
bool	hasMaterialModeCapability (MaterialMode mode) const override
const char *	giveClassName () const override
void	initializeFrom (InputRecord &ir) override
void	giveInputRecord (DynamicInputRecord &input) override
void	giveCharacteristicMatrix (FloatMatrix &answer, MatResponseMode type, GaussPoint gp, TimeStep tStep) const override
	Returns characteristic matrix of the receiver.
void	giveCharacteristicVector (FloatArray &answer, FloatArray &flux, MatResponseMode type, GaussPoint gp, TimeStep tStep) const override
	Returns characteristic vector of the receiver.
virtual void	giveStiffnessMatrix (FloatMatrix &answer, MatResponseMode mode, GaussPoint gp, TimeStep tStep) const
virtual FloatArray	giveRealStressVector_StressControl (const FloatArray &reducedE, const IntArray &strainControl, GaussPoint gp, TimeStep tStep) const
	Iteratively calls giveRealStressVector_3d to find the stress controlled equal to zero·
virtual FloatArray	giveRealStressVector_ShellStressControl (const FloatArray &reducedE, const IntArray &strainControl, GaussPoint gp, TimeStep tStep) const
virtual FloatArrayF< 2 >	giveRealStressVector_Warping (const FloatArrayF< 2 > &reducedE, GaussPoint gp, TimeStep tStep) const
	Default implementation relies on giveRealStressVector_StressControl.
virtual FloatArrayF< 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)
double	giveReferenceTemperature ()
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 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
void	printYourself () override
	Prints receiver state on stdout. Useful for debugging.
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 Member Functions
virtual bool	hasIncrementalShrinkageFormulation () const
const FloatArray &	giveDiscreteTimes () const
void	computeDiscreteRelaxationFunction (FloatArray &answer, const FloatArray &tSteps, double t0, double tr, GaussPoint gp, TimeStep tStep) const
void	giveUnitComplianceMatrix (FloatMatrix &answer, GaussPoint gp, TimeStep tStep) const
	Evaluation of elastic compliance matrix for unit Young's modulus.
void	giveUnitStiffnessMatrix (FloatMatrix &answer, GaussPoint gp, TimeStep tStep) const
	Evaluation of elastic stiffness matrix for unit Young's modulus.
virtual void	updateEparModuli (double tPrime, GaussPoint gp, TimeStep tStep) const
	Update of partial moduli of individual chain units.
double	giveEparModulus (int iChain) const
	Access to partial modulus of a given unit.
virtual void	computeCharTimes ()
	Evaluation of characteristic times.
double	giveCharTime (int) const
	Access to the characteristic time of a given unit.
virtual double	giveCharTimeExponent (int i) const
	Exponent to be used with the char time of a given unit, usually = 1.0.
StructuralMaterial *	giveLinearElasticMaterial ()
	Access to the underlying linear elastic material with unit Young's modulus.
double	giveEndOfTimeOfInterest ()
	Access to the time up to which the response should be accurate.
void	computeTrueStressIndependentStrainVector (FloatArray &answer, GaussPoint gp, TimeStep tStep, ValueModeType mode) const

Static Protected Member Functions
static FloatArray	generateLogTimeScale (double from, double to, int nsteps)

Protected Attributes
double	talpha = 0.
	thermal dilatation coeff.
int	nUnits = 0
	Number of (Maxwell or Kelvin) units in the rheologic chain.
double	relMatAge = 0.
	Physical age of the material at castingTime.
bool	lattice = false
double	nu = 0.
	Poisson's ratio (assumed to be constant, unaffected by creep).
double	alphaOne = 0.
	Parameters for the lattice model.
double	alphaTwo = 0.
double	EparValTime = -1.
	Time for which the partial moduli of individual units have been evaluated.
double	begOfTimeOfInterest = 0.
	Time from which the model should give a good approximation. Optional field. Default value is 0.1 [day].
double	endOfTimeOfInterest = 0.
	Time (age???) up to which the model should give a good approximation.
StructuralMaterial *	linearElasticMaterial = nullptr
	Associated linearElasticMaterial, with E = 1.
FloatArray	EparVal
	Partial moduli of individual units.
FloatArray	charTimes
	Characteristic times of individual units (relaxation or retardation times).
FloatArray	discreteTimeScale
	Times at which the errors are evaluated if the least-square method is used.
double	timeFactor = 0.
Protected Attributes inherited from oofem::StructuralMaterial
double	referenceTemperature = 0.
	Reference temperature (temperature, when material has been built into structure).
MatResponseMode	SCStiffMode = TangentStiffness
	stifness mode used in stress control
double	SCRelTol = 1.e-3
	relative tolerance for stress control
double	SCAbsTol = 1.e-12
	absolute stress tolerance for stress control
int	SCMaxiter = 100000
	maximum iterations for stress-control
Protected Attributes inherited from oofem::Material
Dictionary	propertyDictionary
double	castingTime
int	preCastingTimeMat
	Material existing before casting time - optional parameter, zero by default.
Protected Attributes inherited from oofem::FEMComponent
int	number
	Component number.
Domain *	domain
	Link to domain object, useful for communicating with other FEM components.

Additional Inherited Members
Static Public Member Functions inherited from oofem::StructuralMaterial
static int	giveSymVI (int ind1, int ind2)
static int	giveVI (int ind1, int ind2)
static FloatMatrixF< 9, 9 >	convert_dSdE_2_dPdF_3D (const FloatMatrixF< 6, 6 > &dSdE, const FloatArrayF< 6 > &S, const FloatArrayF< 9 > &F)
static FloatMatrixF< 5, 5 >	convert_dSdE_2_dPdF_PlaneStrain (const FloatMatrixF< 4, 4 > &dSdE, const FloatArrayF< 4 > &S, const FloatArrayF< 5 > &F)
static FloatMatrixF< 4, 4 >	convert_dSdE_2_dPdF_PlaneStress (const FloatMatrixF< 3, 3 > &dSdE, const FloatArrayF< 3 > &S, const FloatArrayF< 4 > &F)
static FloatMatrixF< 1, 1 >	convert_dSdE_2_dPdF_1D (const FloatMatrixF< 1, 1 > &dSdE, const FloatArrayF< 1 > &S, const FloatArrayF< 1 > &F)
static void	computePrincipalValues (FloatArray &answer, const FloatArray &s, stressStrainPrincMode mode)
	Common functions for convenience.
static FloatArrayF< 3 >	computePrincipalValues (const FloatMatrixF< 3, 3 > &s)
static FloatArrayF< 3 >	computePrincipalValues (double I1, double I2, double I3)
static void	computePrincipalValDir (FloatArray &answer, FloatMatrix &dir, const FloatArray &s, stressStrainPrincMode mode)
static std::pair< FloatArrayF< 3 >, FloatMatrixF< 3, 3 > >	computePrincipalValDir (const FloatMatrixF< 3, 3 > &s)
static FloatArrayF< 6 >	computeDeviator (const FloatArrayF< 6 > &s)
static std::pair< FloatArrayF< 6 >, double >	computeDeviatoricVolumetricSplit (const FloatArrayF< 6 > &s)
static FloatArrayF< 6 >	computeDeviatoricVolumetricSum (const FloatArrayF< 6 > &dev, double mean)
static FloatArrayF< 6 >	applyDeviatoricElasticCompliance (const FloatArrayF< 6 > &stress, double EModulus, double nu)
static FloatArrayF< 6 >	applyDeviatoricElasticCompliance (const FloatArrayF< 6 > &stress, double GModulus)
static FloatArrayF< 6 >	applyDeviatoricElasticStiffness (const FloatArrayF< 6 > &strain, double EModulus, double nu)
static FloatArrayF< 6 >	applyDeviatoricElasticStiffness (const FloatArrayF< 6 > &strain, double GModulus)
static FloatArrayF< 6 >	applyElasticStiffness (const FloatArrayF< 6 > &strain, double EModulus, double nu)
static FloatArrayF< 6 >	applyElasticCompliance (const FloatArrayF< 6 > &stress, double EModulus, double nu)
static double	computeStressNorm (const FloatArrayF< 6 > &stress)
static double	computeFirstInvariant (const FloatArrayF< 6 > &s)
static double	computeSecondStressInvariant (const FloatArrayF< 6 > &s)
static double	computeThirdStressInvariant (const FloatArrayF< 6 > &s)
static double	computeFirstCoordinate (const FloatArrayF< 6 > &s)
static double	computeSecondCoordinate (const FloatArrayF< 6 > &s)
static double	computeThirdCoordinate (const FloatArrayF< 6 > &s)
static int	giveVoigtVectorMask (IntArray &answer, MaterialMode mmode)
static int	giveVoigtSymVectorMask (IntArray &answer, MaterialMode mmode)
static void	giveInvertedVoigtVectorMask (IntArray &answer, MaterialMode mmode)
static int	giveSizeOfVoigtVector (MaterialMode mmode)
static int	giveSizeOfVoigtSymVector (MaterialMode mmode)
static void	giveFullVectorForm (FloatArray &answer, const FloatArray &strainVector, MaterialMode matMode)
	Converts the reduced symmetric Voigt vector (2nd order tensor) to full form.
static void	giveFullVectorFormF (FloatArray &answer, const FloatArray &strainVector, MaterialMode matMode)
	Converts the reduced deformation gradient Voigt vector (2nd order tensor).
static void	giveFullSymVectorForm (FloatArray &answer, const FloatArray &vec, MaterialMode matMode)
	Converts the reduced unsymmetric Voigt vector (2nd order tensor) to full form.
static void	giveReducedVectorForm (FloatArray &answer, const FloatArray &vec, MaterialMode matMode)
	Converts the full symmetric Voigt vector (2nd order tensor) to reduced form.
static void	giveReducedSymVectorForm (FloatArray &answer, const FloatArray &vec, MaterialMode matMode)
	Converts the full unsymmetric Voigt vector (2nd order tensor) to reduced form.
static void	giveFullSymMatrixForm (FloatMatrix &answer, const FloatMatrix &red, MaterialMode matMode)
	Converts the full unsymmetric Voigt matrix (4th order tensor) to reduced form.
static void	giveReducedMatrixForm (FloatMatrix &answer, const FloatMatrix &full, MaterialMode matMode)
	Converts the full symmetric Voigt matrix (4th order tensor) to reduced form.
static void	giveReducedSymMatrixForm (FloatMatrix &answer, const FloatMatrix &full, MaterialMode matMode)
	Converts the full unsymmetric Voigt matrix (4th order tensor) to reduced form.
static FloatArrayF< 6 >	transformStrainVectorTo (const FloatMatrixF< 3, 3 > &base, const FloatArrayF< 6 > &strain, bool transpose=false)
static FloatArrayF< 6 >	transformStressVectorTo (const FloatMatrixF< 3, 3 > &base, const FloatArrayF< 6 > &stress, bool transpose=false)
static double	computeVonMisesStress (const FloatArray &currentStress)
static double	computeVonMisesStress_3D (const FloatArrayF< 6 > &stress)
static double	computeVonMisesStress_PlaneStress (const FloatArrayF< 3 > &stress)
static FloatMatrixF< 6, 6 >	giveStrainVectorTranformationMtrx (const FloatMatrixF< 3, 3 > &base, bool transpose=false)
static FloatMatrixF< 3, 3 >	give2DStrainVectorTranformationMtrx (const FloatMatrixF< 2, 2 > &base, bool transpose=false)
static FloatMatrixF< 6, 6 >	giveStressVectorTranformationMtrx (const FloatMatrixF< 3, 3 > &base, bool transpose=false)
static FloatMatrixF< 3, 3 >	givePlaneStressVectorTranformationMtrx (const FloatMatrixF< 2, 2 > &base, bool transpose=false)
static void	sortPrincDirAndValCloseTo (FloatArray &pVal, FloatMatrix &pDir, const FloatMatrix &toPDir)
Static Public Attributes inherited from oofem::StructuralMaterial
static std::array< std::array< int, 3 >, 3 >	vIindex
	Voigt index map.
static std::array< std::array< int, 3 >, 3 >	svIndex
	Symmetric Voigt index map.

Detailed Description

This class implements a rheologic chain model describing a viscoelastic material. It serves as the parent class for Maxwell and Kelvin chains.

Definition at line 139 of file rheoChM.h.

Constructor & Destructor Documentation

◆ RheoChainMaterial()

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

Definition at line 48 of file rheoChM.C.

References oofem::StructuralMaterial::StructuralMaterial().

Referenced by giveRealStressVector_1d(), giveRealStressVector_2dBeamLayer(), giveRealStressVector_3d(), giveRealStressVector_PlaneStrain(), giveRealStressVector_PlaneStress(), giveRealStressVector_PlateLayer(), oofem::KelvinChainMaterial::KelvinChainMaterial(), oofem::KelvinChainSolidMaterial::KelvinChainSolidMaterial(), and oofem::MaxwellChainMaterial::MaxwellChainMaterial().

◆ ~RheoChainMaterial()

oofem::RheoChainMaterial::~RheoChainMaterial ( )

virtual

Definition at line 52 of file rheoChM.C.

References linearElasticMaterial.

Member Function Documentation

◆ computeCharCoefficients()

virtual FloatArray oofem::RheoChainMaterial::computeCharCoefficients	(	double	tPrime,
		GaussPoint *	gp,
		TimeStep *	tStep ) const

pure virtual

Evaluation of the moduli of individual units.

Implemented in oofem::B3SolidMaterial, oofem::Eurocode2CreepMaterial, oofem::KelvinChainMaterial, oofem::MaxwellChainMaterial, and oofem::MPSMaterial.

Referenced by updateEparModuli().

◆ computeCharTimes()

void oofem::RheoChainMaterial::computeCharTimes ( )

protectedvirtual

Evaluation of characteristic times.

Reimplemented in oofem::B3SolidMaterial, oofem::Eurocode2CreepMaterial, and oofem::MPSMaterial.

Definition at line 402 of file rheoChM.C.

References begOfTimeOfInterest, charTimes, giveEndOfTimeOfInterest(), nUnits, OOFEM_ERROR, and relMatAge.

Referenced by initializeFrom().

◆ computeCreepFunction()

virtual double oofem::RheoChainMaterial::computeCreepFunction	(	double	t,
		double	t_prime,
		GaussPoint *	gp,
		TimeStep *	tStep ) const

pure virtual

Evaluation of the creep compliance function at time t when loading is acting from time t_prime.

Implemented in oofem::B3Material, oofem::B3SolidMaterial, oofem::CebFip78Material, oofem::DoublePowerLawMaterial, oofem::Eurocode2CreepMaterial, oofem::KelvinChainSolidMaterial, and oofem::MPSMaterial.

Referenced by oofem::KelvinChainMaterial::computeCharCoefficients(), computeDiscreteRelaxationFunction(), oofem::LatticeDamageViscoelastic::initializeFrom(), oofem::LatticePlasticityDamageViscoelastic::initializeFrom(), and oofem::LatticeViscoelastic::initializeFrom().

◆ computeDiscreteRelaxationFunction()

void oofem::RheoChainMaterial::computeDiscreteRelaxationFunction	(	FloatArray &	answer,
		const FloatArray &	tSteps,
		double	t0,
		double	tr,
		GaussPoint *	gp,
		TimeStep *	tStep ) const

protected

Evaluation of the relaxation function at given times. This functions solves numerically an integral equation of the form

\[\varepsilon(t) = \int_{0}^{t} J(t, \tau) \mathrm{d}\sigma(\tau) + \varepsilon_n(t) \]

where \( \varepsilon_n(t) \) is stress-independent deformation, for the case where \( \varepsilon(t) = 1 \) is kept at constant value in time.

Parameters

[out]	answer	Array with evaluated relaxation function.
	t0	Age of material when load is applied.
	tr	Age of material when relaxation has begun ???
	tSteps	At which times the relaxation function will be evaluated.

Warning: tSteps should be uniformly distributed in log time scale and relatively dense (100 intervals) in order to achieve a reasonable accuracy.

Definition at line 197 of file rheoChM.C.

References oofem::FloatArray::at(), computeCreepFunction(), oofem::FloatArray::giveSize(), oofem::FloatArray::resize(), oofem::sum(), and oofem::FloatArray::zero().

Referenced by oofem::MaxwellChainMaterial::computeCharCoefficients().

◆ computeStressIndependentStrainVector()

FloatArray oofem::RheoChainMaterial::computeStressIndependentStrainVector	(	GaussPoint *	gp,
		TimeStep *	tStep,
		ValueModeType	mode ) const

overridevirtual

Computes reduced strain vector in given integration point, generated by internal processes in material, which are independent on loading in particular integration point. Default implementation takes into account temperature induced strains and eigenstrains.

Parameters

answer	Returned strain vector.
gp	Integration point.
tStep	Time step (most models are able to respond only when tStep is current time step).
mode	Determines response mode (Total or incremental).

Todo: Hack for loose gausspoints. We shouldn't ask for "gp->giveElement()". FIXME

Reimplemented from oofem::StructuralMaterial.

Definition at line 370 of file rheoChM.C.

References oofem::FloatArray::add(), computeTrueStressIndependentStrainVector(), giveEigenStrainVector(), and oofem::FloatArray::giveSize().

Referenced by oofem::KelvinChainMaterial::computeHiddenVars(), oofem::KelvinChainSolidMaterial::computeHiddenVars(), and oofem::ConcreteFCMViscoElastic::computeStressIndependentStrainVector().

◆ computeTrueStressIndependentStrainVector()

void oofem::RheoChainMaterial::computeTrueStressIndependentStrainVector	(	FloatArray &	answer,
		GaussPoint *	gp,
		TimeStep *	tStep,
		ValueModeType	mode ) const

protected

Computes, for the given integration point, internal processes in the material. Takes into account only temperature and shrinkage-induced strains.

Parameters

answer	Returned strain vector.
gp	Integration point.
tStep	Time step (most models are able to respond only when tStep is current time step).
mode	Determines response mode (Total or incremental).

Definition at line 340 of file rheoChM.C.

References giveShrinkageStrainVector(), oofem::Material::giveStatus(), oofem::RheoChainMaterialStatus::giveThermalStrain(), and oofem::RheoChainMaterialStatus::setTempThermalStrain().

Referenced by oofem::MaxwellChainMaterial::computeHiddenVars(), and computeStressIndependentStrainVector().

◆ CreateStatus()

std::unique_ptr< MaterialStatus > oofem::RheoChainMaterial::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 558 of file rheoChM.C.

References nUnits.

◆ generateLogTimeScale()

FloatArray oofem::RheoChainMaterial::generateLogTimeScale	(	double	from,
		double	to,
		int	nsteps )

staticprotected

Generates discrete times starting from time "from" to time "to" uniformly distributed in log time scale. The time interval (to-from) is divided to nsteps intervals. We return times starting from ("from" + first increment)

Parameters

from	Starting time
to	End time
nsteps	Number of discrete steps.

Returns: Resulting array of discrete times.

Definition at line 248 of file rheoChM.C.

References oofem::FloatArray::at().

Referenced by initializeFrom().

◆ give1dStressStiffMtrx()

FloatMatrixF< 1, 1 > oofem::RheoChainMaterial::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 543 of file rheoChM.C.

References oofem::FEMComponent::domain, giveEModulus(), oofem::Material::giveStatus(), linearElasticMaterial, oofem::Material::preCastingTimeMat, and oofem::StructuralMaterial::StructuralMaterial().

◆ give3dMaterialStiffnessMatrix()

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

overridevirtual

Computes the stiffness matrix for giveRealStressVector of receiver in given integration point, respecting its history. The algorithm should use temporary or equilibrium history variables stored in integration point status to compute and return required result.

Parameters

answer	Contains result.
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 486 of file rheoChM.C.

References oofem::FEMComponent::domain, giveEModulus(), oofem::Material::giveStatus(), linearElasticMaterial, oofem::Material::preCastingTimeMat, and oofem::StructuralMaterial::StructuralMaterial().

◆ giveAlphaOne()

double oofem::RheoChainMaterial::giveAlphaOne ( ) const

inline

Definition at line 311 of file rheoChM.h.

Referenced by oofem::LatticeDamageViscoelastic::checkConsistency(), oofem::LatticePlasticityDamageViscoelastic::checkConsistency(), and oofem::LatticeViscoelastic::checkConsistency().

◆ giveAlphaTwo()

double oofem::RheoChainMaterial::giveAlphaTwo ( ) const

inline

Definition at line 312 of file rheoChM.h.

References alphaTwo.

Referenced by oofem::LatticeDamageViscoelastic::checkConsistency(), oofem::LatticePlasticityDamageViscoelastic::checkConsistency(), and oofem::LatticeViscoelastic::checkConsistency().

◆ giveCharTime()

double oofem::RheoChainMaterial::giveCharTime ( int i ) const

protected

Access to the characteristic time of a given unit.

Definition at line 396 of file rheoChM.C.

References charTimes.

Referenced by oofem::KelvinChainSolidMaterial::computeBetaMu(), oofem::MPSMaterial::computeBetaMu(), oofem::B3SolidMaterial::computeCharCoefficients(), oofem::KelvinChainMaterial::computeCharCoefficients(), oofem::MaxwellChainMaterial::computeCharCoefficients(), oofem::MPSMaterial::computeCharCoefficients(), oofem::KelvinChainMaterial::computeHiddenVars(), oofem::MaxwellChainMaterial::computeHiddenVars(), oofem::KelvinChainSolidMaterial::computeLambdaMu(), oofem::MPSMaterial::computeLambdaMu(), oofem::MaxwellChainMaterial::giveEigenStrainVector(), oofem::KelvinChainMaterial::giveEModulus(), and oofem::MaxwellChainMaterial::giveEModulus().

◆ giveCharTimeExponent()

virtual double oofem::RheoChainMaterial::giveCharTimeExponent ( int i ) const

inlineprotectedvirtual

Exponent to be used with the char time of a given unit, usually = 1.0.

Definition at line 389 of file rheoChM.h.

Referenced by oofem::MaxwellChainMaterial::computeCharCoefficients(), oofem::MaxwellChainMaterial::computeHiddenVars(), oofem::MaxwellChainMaterial::giveEigenStrainVector(), and oofem::MaxwellChainMaterial::giveEModulus().

◆ giveClassName()

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

inlineoverridevirtual

Returns: Class name of the receiver.

Implements oofem::FEMComponent.

Definition at line 248 of file rheoChM.h.

◆ giveDiscreteTimes()

const FloatArray & oofem::RheoChainMaterial::giveDiscreteTimes ( ) const

protected

Definition at line 260 of file rheoChM.C.

References discreteTimeScale.

Referenced by oofem::KelvinChainMaterial::computeCharCoefficients(), oofem::MaxwellChainMaterial::computeCharCoefficients(), and oofem::KelvinChainMaterial::initializeFrom().

◆ giveEigenStrainVector()

virtual void oofem::RheoChainMaterial::giveEigenStrainVector	(	FloatArray &	answer,
		GaussPoint *	gp,
		TimeStep *	tStep,
		ValueModeType	mode ) const

inlinevirtual

Computes, for the given integration point, the strain vector induced by the stress history (typically creep strain).

Parameters

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

Reimplemented in oofem::B3SolidMaterial, oofem::KelvinChainMaterial, oofem::KelvinChainSolidMaterial, oofem::MaxwellChainMaterial, and oofem::MPSMaterial.

Definition at line 307 of file rheoChM.h.

Referenced by computeStressIndependentStrainVector().

◆ giveEModulus()

virtual double oofem::RheoChainMaterial::giveEModulus	(	GaussPoint *	gp,
		TimeStep *	tStep ) const

pure virtual

Evaluation of the incremental modulus.

Implemented in oofem::B3SolidMaterial, oofem::Eurocode2CreepMaterial, oofem::KelvinChainMaterial, oofem::KelvinChainSolidMaterial, oofem::MaxwellChainMaterial, and oofem::MPSMaterial.

Referenced by oofem::ConcreteFCMViscoElastic::computeOverallElasticShearModulus(), oofem::ConcreteFCMViscoElastic::computeOverallElasticStiffness(), give1dStressStiffMtrx(), oofem::LatticeDamageViscoelastic::give2dLatticeStiffnessMatrix(), oofem::LatticeViscoelastic::give2dLatticeStiffnessMatrix(), oofem::LatticeDamageViscoelastic::give3dLatticeStiffnessMatrix(), oofem::LatticePlasticityDamageViscoelastic::give3dLatticeStiffnessMatrix(), oofem::LatticeViscoelastic::give3dLatticeStiffnessMatrix(), give3dMaterialStiffnessMatrix(), oofem::LatticeViscoelastic::giveLatticeStress3d(), givePlaneStrainStiffMtrx(), givePlaneStressStiffMtrx(), and giveRealStressVector().

◆ giveEndOfTimeOfInterest()

double oofem::RheoChainMaterial::giveEndOfTimeOfInterest ( )

protected

Access to the time up to which the response should be accurate.

Definition at line 629 of file rheoChM.C.

References endOfTimeOfInterest, oofem::FEMComponent::giveDomain(), and timeFactor.

Referenced by oofem::MPSMaterial::computeCharTimes(), computeCharTimes(), and initializeFrom().

◆ giveEparModulus()

double oofem::RheoChainMaterial::giveEparModulus ( int iChain ) const

protected

Access to partial modulus of a given unit.

Definition at line 303 of file rheoChM.C.

References EparVal.

Referenced by oofem::KelvinChainMaterial::computeHiddenVars(), oofem::MaxwellChainMaterial::computeHiddenVars(), oofem::KelvinChainSolidMaterial::giveEigenStrainVector(), oofem::KelvinChainMaterial::giveEModulus(), oofem::KelvinChainSolidMaterial::giveEModulus(), and oofem::MaxwellChainMaterial::giveEModulus().

◆ giveEquivalentTime()

virtual double oofem::RheoChainMaterial::giveEquivalentTime	(	GaussPoint *	gp,
		TimeStep *	tStep ) const

inlinevirtual

By default returns equivalent time in the middle of the time step.

Reimplemented in oofem::MPSMaterial.

Definition at line 330 of file rheoChM.h.

References oofem::TimeStep::giveTargetTime(), and oofem::TimeStep::giveTimeIncrement().

Referenced by oofem::ConcreteFCMViscoElastic::giveEquivalentTime(), and oofem::LatticePlasticityDamageViscoelastic::giveEquivalentTime().

◆ giveIPValue()

int oofem::RheoChainMaterial::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 657 of file rheoChM.C.

References oofem::FloatArray::at(), oofem::Material::giveStatus(), oofem::RheoChainMaterialStatus::giveThermalStrain(), oofem::FloatArray::resize(), and oofem::FloatArray::zero().

Referenced by oofem::ConcreteFCMViscoElastic::giveIPValue(), oofem::LatticeDamageViscoelastic::giveIPValue(), oofem::LatticePlasticityDamageViscoelastic::giveIPValue(), oofem::LatticeViscoelastic::giveIPValue(), and oofem::MPSMaterial::giveIPValue().

◆ giveLinearElasticMaterial()

StructuralMaterial * oofem::RheoChainMaterial::giveLinearElasticMaterial ( )

protected

Access to the underlying linear elastic material with unit Young's modulus.

Definition at line 611 of file rheoChM.C.

References alphaOne, alphaTwo, oofem::FEMComponent::giveDomain(), oofem::FEMComponent::giveNumber(), lattice, linearElasticMaterial, and nu.

Referenced by initializeFrom(), restoreIPContext(), and saveIPContext().

◆ givePlaneStrainStiffMtrx()

FloatMatrixF< 4, 4 > oofem::RheoChainMaterial::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 526 of file rheoChM.C.

References oofem::FEMComponent::domain, giveEModulus(), oofem::Material::giveStatus(), linearElasticMaterial, oofem::Material::preCastingTimeMat, and oofem::StructuralMaterial::StructuralMaterial().

◆ givePlaneStressStiffMtrx()

FloatMatrixF< 3, 3 > oofem::RheoChainMaterial::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 509 of file rheoChM.C.

References oofem::FEMComponent::domain, giveEModulus(), oofem::Material::giveStatus(), linearElasticMaterial, oofem::Material::preCastingTimeMat, and oofem::StructuralMaterial::StructuralMaterial().

◆ givePoissonsRatio()

double oofem::RheoChainMaterial::givePoissonsRatio ( ) const

inline

Returns Poisson's ratio.

Definition at line 315 of file rheoChM.h.

References nu.

Referenced by oofem::ConcreteFCMViscoElastic::checkConsistency().

◆ giveRealStressVector()

void oofem::RheoChainMaterial::giveRealStressVector	(	FloatArray &	answer,
		GaussPoint *	gp,
		const FloatArray &	reducedStrain,
		TimeStep *	tStep ) const

overridevirtual

Computes the real stress vector for given total strain and integration point. The total strain is defined as strain computed directly from displacement field at given time. The stress independent parts (temperature, eigenstrains) are subtracted in constitutive driver. The service should use previously reached equilibrium history variables. Also it should update temporary history variables in status according to newly reached state. The temporary history variables are moved into equilibrium ones after global structure equilibrium has been reached by iteration process.

Parameters

answer	Stress vector in reduced form. For large deformations it is treated as the second Piola-Kirchoff stress.
gp	Integration point.
reducedStrain	Strain vector in reduced form. For large deformations it is treated as the Green-Lagrange strain.
tStep	Current time step (most models are able to respond only when tStep is current time step).

Todo: Move this to StructuralCrossSection ?

Reimplemented from oofem::StructuralMaterial.

Definition at line 72 of file rheoChM.C.

References oofem::FloatArray::add(), oofem::FloatArray::beDifferenceOf(), oofem::FloatArray::beProductOf(), oofem::FEMComponent::domain, oofem::RheoChainMaterialStatus::giveCurrentTime(), giveEModulus(), giveShrinkageStrainVector(), oofem::FloatArray::giveSize(), oofem::Material::giveStatus(), oofem::StructuralMaterial::giveStiffnessMatrix(), oofem::StructuralMaterialStatus::giveStrainVector(), oofem::StructuralMaterial::giveStressDependentPartOfStrainVector(), giveUnitStiffnessMatrix(), oofem::RheoChainMaterialStatus::giveViscoelasticStressVector(), hasIncrementalShrinkageFormulation(), oofem::Material::initTempStatus(), isActivated(), oofem::StructuralMaterialStatus::letTempStrainVectorBe(), oofem::StructuralMaterialStatus::letTempStressVectorBe(), oofem::Material::preCastingTimeMat, oofem::FloatArray::resize(), oofem::RheoChainMaterialStatus::setCurrentTime(), oofem::RheoChainMaterialStatus::setShrinkageStrainVector(), oofem::StructuralMaterial::StructuralMaterial(), oofem::FloatMatrix::times(), oofem::FloatArray::zero(), and oofem::zeros().

Referenced by oofem::LatticeDamageViscoelastic::giveLatticeStress3d(), oofem::LatticePlasticityDamageViscoelastic::giveLatticeStress3d(), oofem::LatticeViscoelastic::giveLatticeStress3d(), oofem::ConcreteFCMViscoElastic::giveRealStressVector(), giveRealStressVector_1d(), giveRealStressVector_2dBeamLayer(), giveRealStressVector_3d(), giveRealStressVector_PlaneStrain(), giveRealStressVector_PlaneStress(), and giveRealStressVector_PlateLayer().

◆ giveRealStressVector_1d()

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

inlineoverridevirtual

Default implementation relies on giveRealStressVector_StressControl.

Reimplemented from oofem::StructuralMaterial.

Definition at line 205 of file rheoChM.h.

References giveRealStressVector(), and RheoChainMaterial().

◆ giveRealStressVector_2dBeamLayer()

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

inlineoverridevirtual

Default implementation relies on giveRealStressVector_StressControl.

Reimplemented from oofem::StructuralMaterial.

Definition at line 211 of file rheoChM.h.

References giveRealStressVector(), and RheoChainMaterial().

◆ giveRealStressVector_3d()

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

inlineoverridevirtual

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

Reimplemented from oofem::StructuralMaterial.

Definition at line 187 of file rheoChM.h.

References giveRealStressVector(), and RheoChainMaterial().

◆ giveRealStressVector_PlaneStrain()

FloatArrayF< 4 > oofem::RheoChainMaterial::giveRealStressVector_PlaneStrain	(	const FloatArrayF< 4 > &	strain,
		GaussPoint *	gp,
		TimeStep *	tStep ) const

inlineoverridevirtual

Default implementation relies on giveRealStressVector_3d.

Reimplemented from oofem::StructuralMaterial.

Definition at line 193 of file rheoChM.h.

References giveRealStressVector(), and RheoChainMaterial().

◆ giveRealStressVector_PlaneStress()

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

inlineoverridevirtual

Default implementation relies on giveRealStressVector_StressControl.

Reimplemented from oofem::StructuralMaterial.

Definition at line 199 of file rheoChM.h.

References giveRealStressVector(), and RheoChainMaterial().

◆ giveRealStressVector_PlateLayer()

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

inlineoverridevirtual

Default implementation relies on giveRealStressVector_StressControl.

Reimplemented from oofem::StructuralMaterial.

Definition at line 217 of file rheoChM.h.

References giveRealStressVector(), and RheoChainMaterial().

◆ giveShrinkageStrainVector()

virtual void oofem::RheoChainMaterial::giveShrinkageStrainVector	(	FloatArray &	answer,
		GaussPoint *	gp,
		TimeStep *	tStep,
		ValueModeType	mode ) const

inlinevirtual

Computes, for the given integration point, the strain vector induced by stress-independent shrinkage.

Parameters

answer	Returned strain vector.
gp	Integration point.
tStep	Time step (most models are able to respond only when tStep is current time step).
mode	Determines response mode (Total or incremental).

Reimplemented in oofem::B3Material, oofem::B3SolidMaterial, oofem::Eurocode2CreepMaterial, oofem::KelvinChainMaterial, oofem::KelvinChainSolidMaterial, oofem::MaxwellChainMaterial, and oofem::MPSMaterial.

Definition at line 292 of file rheoChM.h.

References oofem::FloatArray::clear().

Referenced by computeTrueStressIndependentStrainVector(), and giveRealStressVector().

◆ giveThermalDilatationVector()

FloatArrayF< 6 > oofem::RheoChainMaterial::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.

Definition at line 171 of file rheoChM.C.

References talpha.

◆ giveUnitComplianceMatrix()

void oofem::RheoChainMaterial::giveUnitComplianceMatrix	(	FloatMatrix &	answer,
		GaussPoint *	gp,
		TimeStep *	tStep ) const

protected

Evaluation of elastic compliance matrix for unit Young's modulus.

Definition at line 286 of file rheoChM.C.

References linearElasticMaterial.

Referenced by oofem::B3SolidMaterial::giveEigenStrainVector(), oofem::KelvinChainSolidMaterial::giveEigenStrainVector(), oofem::MaxwellChainMaterial::giveEigenStrainVector(), and oofem::MPSMaterial::giveEigenStrainVector().

◆ giveUnitStiffnessMatrix()

void oofem::RheoChainMaterial::giveUnitStiffnessMatrix	(	FloatMatrix &	answer,
		GaussPoint *	gp,
		TimeStep *	tStep ) const

protected

Evaluation of elastic stiffness matrix for unit Young's modulus.

Definition at line 267 of file rheoChM.C.

References linearElasticMaterial.

Referenced by oofem::KelvinChainSolidMaterial::computeHiddenVars(), oofem::MaxwellChainMaterial::computeHiddenVars(), and giveRealStressVector().

◆ hasCastingTimeSupport()

bool oofem::RheoChainMaterial::hasCastingTimeSupport ( ) const

inlineoverridevirtual

Tests if material supports casting time

Returns: Nonzero if supported, zero otherwise.

Reimplemented from oofem::Material.

Definition at line 246 of file rheoChM.h.

◆ hasIncrementalShrinkageFormulation()

virtual bool oofem::RheoChainMaterial::hasIncrementalShrinkageFormulation ( ) const

inlineprotectedvirtual

If only incremental shrinkage strain formulation is provided, then total shrinkage strain must be tracked in status in order to be able to compute total value.

Reimplemented in oofem::B3Material, oofem::B3SolidMaterial, oofem::Eurocode2CreepMaterial, oofem::KelvinChainMaterial, oofem::KelvinChainSolidMaterial, oofem::MaxwellChainMaterial, and oofem::MPSMaterial.

Definition at line 339 of file rheoChM.h.

Referenced by giveRealStressVector().

◆ hasMaterialModeCapability()

bool oofem::RheoChainMaterial::hasMaterialModeCapability ( MaterialMode mode ) const

overridevirtual

Tests if material supports material mode.

Parameters

mode	Required material mode.

Returns: Nonzero if supported, zero otherwise.

Reimplemented from oofem::Material.

Definition at line 61 of file rheoChM.C.

◆ initializeFrom()

void oofem::RheoChainMaterial::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

Warning: Stiffness is time dependant, so the variable changes with time.

Reimplemented from oofem::Material.

Definition at line 565 of file rheoChM.C.

◆ isActivated()

bool oofem::RheoChainMaterial::isActivated ( TimeStep * tStep ) const

inlineoverridevirtual

Extended meaning: returns true if the material is cast (target time > casting time) or the precasing time mat is defined.

Reimplemented from oofem::Material.

Definition at line 321 of file rheoChM.h.

References oofem::Material::preCastingTimeMat.

Referenced by oofem::Eurocode2CreepMaterial::giveRealStressVector(), oofem::MPSDamMaterial::giveRealStressVector(), giveRealStressVector(), and oofem::Eurocode2CreepMaterial::giveShrinkageStrainVector().

◆ restoreIPContext()

void oofem::RheoChainMaterial::restoreIPContext	(	DataStream &	stream,
		ContextMode	mode,
		GaussPoint *	gp )

overridevirtual

Reads integration point state to output stream.

Parameters

stream	Output stream.
mode	Determines amount of info required in stream (state, definition, ...).
gp	integration point.

Exceptions

throws an ContextIOERR exception if error encountered.

Reimplemented from oofem::Material.

Definition at line 648 of file rheoChM.C.

References giveLinearElasticMaterial().

◆ saveIPContext()

void oofem::RheoChainMaterial::saveIPContext	(	DataStream &	stream,
		ContextMode	mode,
		GaussPoint *	gp )

overridevirtual

Stores integration point state to output stream.

Parameters

stream	Output stream.
mode	Determines amount of info required in stream (state, definition, ...).
gp	integration point.

Exceptions

throws an ContextIOERR exception if error encountered.

Reimplemented from oofem::Material.

Definition at line 641 of file rheoChM.C.

References giveLinearElasticMaterial().

◆ updateEparModuli()

void oofem::RheoChainMaterial::updateEparModuli	(	double	tPrime,
		GaussPoint *	gp,
		TimeStep *	tStep ) const

protectedvirtual

Update of partial moduli of individual chain units.

Reimplemented in oofem::B3SolidMaterial.

Definition at line 313 of file rheoChM.C.

References computeCharCoefficients(), EparVal, EparValTime, and TIME_DIFF.

Referenced by oofem::KelvinChainSolidMaterial::giveEigenStrainVector(), oofem::KelvinChainMaterial::giveEModulus(), oofem::KelvinChainSolidMaterial::giveEModulus(), oofem::MaxwellChainMaterial::giveEModulus(), and oofem::MPSMaterial::giveEModulus().

Member Data Documentation

◆ alphaOne

double oofem::RheoChainMaterial::alphaOne = 0.

protected

Parameters for the lattice model.

Definition at line 153 of file rheoChM.h.

Referenced by giveLinearElasticMaterial(), and initializeFrom().

◆ alphaTwo

double oofem::RheoChainMaterial::alphaTwo = 0.

protected

Definition at line 153 of file rheoChM.h.

Referenced by giveAlphaTwo(), giveLinearElasticMaterial(), and initializeFrom().

◆ begOfTimeOfInterest

double oofem::RheoChainMaterial::begOfTimeOfInterest = 0.

protected

Time from which the model should give a good approximation. Optional field. Default value is 0.1 [day].

Definition at line 158 of file rheoChM.h.

Referenced by oofem::B3SolidMaterial::computeCharTimes(), oofem::Eurocode2CreepMaterial::computeCharTimes(), oofem::MPSMaterial::computeCharTimes(), computeCharTimes(), and initializeFrom().

◆ charTimes

FloatArray oofem::RheoChainMaterial::charTimes

mutableprotected

Characteristic times of individual units (relaxation or retardation times).

Definition at line 169 of file rheoChM.h.

Referenced by oofem::B3SolidMaterial::computeCharCoefficients(), oofem::MPSMaterial::computeCharCoefficients(), oofem::B3SolidMaterial::computeCharTimes(), oofem::Eurocode2CreepMaterial::computeCharTimes(), oofem::MPSMaterial::computeCharTimes(), computeCharTimes(), and giveCharTime().

◆ discreteTimeScale

FloatArray oofem::RheoChainMaterial::discreteTimeScale

protected

Times at which the errors are evaluated if the least-square method is used.

Definition at line 171 of file rheoChM.h.

Referenced by giveDiscreteTimes(), and initializeFrom().

◆ endOfTimeOfInterest

double oofem::RheoChainMaterial::endOfTimeOfInterest = 0.

protected

Time (age???) up to which the model should give a good approximation.

Definition at line 160 of file rheoChM.h.

Referenced by oofem::B3SolidMaterial::computeCharTimes(), oofem::Eurocode2CreepMaterial::computeCharTimes(), oofem::MPSMaterial::computeCharTimes(), giveEndOfTimeOfInterest(), and initializeFrom().

◆ EparVal

FloatArray oofem::RheoChainMaterial::EparVal

mutableprotected

Partial moduli of individual units.

Definition at line 166 of file rheoChM.h.

Referenced by oofem::KelvinChainSolidMaterial::giveEigenStrainVector(), oofem::KelvinChainSolidMaterial::giveEModulus(), oofem::MPSMaterial::giveEModulus(), giveEparModulus(), oofem::B3SolidMaterial::updateEparModuli(), and updateEparModuli().

◆ EparValTime

double oofem::RheoChainMaterial::EparValTime = -1.

mutableprotected

Time for which the partial moduli of individual units have been evaluated.

Definition at line 155 of file rheoChM.h.

Referenced by updateEparModuli().

◆ lattice

bool oofem::RheoChainMaterial::lattice = false

protected

Definition at line 149 of file rheoChM.h.

Referenced by giveLinearElasticMaterial(), and initializeFrom().

◆ linearElasticMaterial

StructuralMaterial* oofem::RheoChainMaterial::linearElasticMaterial = nullptr

protected

Associated linearElasticMaterial, with E = 1.

Definition at line 163 of file rheoChM.h.

Referenced by give1dStressStiffMtrx(), give3dMaterialStiffnessMatrix(), giveLinearElasticMaterial(), givePlaneStrainStiffMtrx(), givePlaneStressStiffMtrx(), giveUnitComplianceMatrix(), giveUnitStiffnessMatrix(), and ~RheoChainMaterial().

◆ nu

double oofem::RheoChainMaterial::nu = 0.

protected

Poisson's ratio (assumed to be constant, unaffected by creep).

Definition at line 151 of file rheoChM.h.

Referenced by giveLinearElasticMaterial(), givePoissonsRatio(), and initializeFrom().

◆ nUnits

int oofem::RheoChainMaterial::nUnits = 0

protected

Number of (Maxwell or Kelvin) units in the rheologic chain.

Definition at line 145 of file rheoChM.h.

Referenced by oofem::B3SolidMaterial::computeCharCoefficients(), oofem::Eurocode2CreepMaterial::computeCharCoefficients(), oofem::KelvinChainMaterial::computeCharCoefficients(), oofem::MaxwellChainMaterial::computeCharCoefficients(), oofem::MPSMaterial::computeCharCoefficients(), oofem::B3SolidMaterial::computeCharTimes(), oofem::Eurocode2CreepMaterial::computeCharTimes(), oofem::MPSMaterial::computeCharTimes(), computeCharTimes(), oofem::KelvinChainMaterial::computeHiddenVars(), oofem::KelvinChainSolidMaterial::computeHiddenVars(), oofem::MaxwellChainMaterial::computeHiddenVars(), oofem::B3SolidMaterial::CreateStatus(), oofem::Eurocode2CreepMaterial::CreateStatus(), oofem::KelvinChainMaterial::CreateStatus(), oofem::KelvinChainSolidMaterial::CreateStatus(), oofem::MaxwellChainMaterial::CreateStatus(), oofem::MPSDamMaterial::CreateStatus(), oofem::MPSMaterial::CreateStatus(), CreateStatus(), oofem::KelvinChainMaterial::giveEigenStrainVector(), oofem::KelvinChainSolidMaterial::giveEigenStrainVector(), oofem::MaxwellChainMaterial::giveEigenStrainVector(), oofem::KelvinChainMaterial::giveEModulus(), oofem::KelvinChainSolidMaterial::giveEModulus(), and oofem::MaxwellChainMaterial::giveEModulus().

◆ relMatAge

double oofem::RheoChainMaterial::relMatAge = 0.

protected

Physical age of the material at castingTime.

Definition at line 147 of file rheoChM.h.

Referenced by oofem::MPSMaterial::computeAutogenousShrinkageDefinedByTF(), oofem::MPSMaterial::computeB4AutogenousShrinkageStrainVector(), computeCharTimes(), oofem::Eurocode2CreepMaterial::computeEquivalentMaturity(), oofem::MPSMaterial::computeEquivalentTime(), oofem::MPSMaterial::computeFibAutogenousShrinkageStrainVector(), oofem::B3SolidMaterial::computeFlowTermViscosity(), oofem::MPSMaterial::computeFlowTermViscosity(), oofem::B3Material::computeShrinkageStrainVector(), oofem::B3SolidMaterial::computeSolidifiedVolume(), oofem::MPSMaterial::computeSolidifiedVolume(), oofem::B3Material::computeTotalAverageShrinkageStrainVector(), oofem::B3SolidMaterial::computeTotalAverageShrinkageStrainVector(), oofem::B3SolidMaterial::giveEModulus(), oofem::Eurocode2CreepMaterial::giveEModulus(), oofem::KelvinChainMaterial::giveEModulus(), oofem::MaxwellChainMaterial::giveEModulus(), oofem::MPSMaterial::giveEModulus(), oofem::Eurocode2CreepMaterial::giveShrinkageStrainVector(), oofem::B3SolidMaterial::initializeFrom(), oofem::MPSMaterial::initializeFrom(), and initializeFrom().

◆ talpha

double oofem::RheoChainMaterial::talpha = 0.

protected

thermal dilatation coeff.

Definition at line 143 of file rheoChM.h.

Referenced by giveThermalDilatationVector(), and initializeFrom().

◆ timeFactor

double oofem::RheoChainMaterial::timeFactor = 0.

protected

Scaling factor transforming the simulation time units into days (gives the number of simulation time units in one day, e.g. 86400 if the simulation works with seconds as the time units)

Definition at line 178 of file rheoChM.h.

Referenced by oofem::Eurocode2CreepMaterial::computeCharCoefficients(), oofem::Eurocode2CreepMaterial::computeCharTimes(), oofem::Eurocode2CreepMaterial::computeConcreteStrengthAtAge(), oofem::Eurocode2CreepMaterial::computeCreepCoefficient(), oofem::B3SolidMaterial::computeFlowTermViscosity(), oofem::MaxwellChainMaterial::computeHiddenVars(), oofem::B3SolidMaterial::computeMicroPrestress(), oofem::Eurocode2CreepMaterial::computeRetardationTimeCorrection(), oofem::B3Material::computeShrinkageStrainVector(), oofem::B3SolidMaterial::computeSolidifiedVolume(), oofem::B3Material::computeTotalAverageShrinkageStrainVector(), oofem::B3SolidMaterial::computeTotalAverageShrinkageStrainVector(), oofem::Eurocode2CreepMaterial::evaluateSpectrumAt(), oofem::B3SolidMaterial::giveEigenStrainVector(), oofem::MaxwellChainMaterial::giveEigenStrainVector(), oofem::B3SolidMaterial::giveEModulus(), oofem::MaxwellChainMaterial::giveEModulus(), giveEndOfTimeOfInterest(), oofem::Eurocode2CreepMaterial::giveShrinkageStrainVector(), and initializeFrom().

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

Public Member Functions

Protected Member Functions

Static Protected Member Functions

Protected Attributes

Additional Inherited Members

Detailed Description

Constructor & Destructor Documentation

◆ RheoChainMaterial()

◆ ~RheoChainMaterial()

Member Function Documentation

◆ computeCharCoefficients()

◆ computeCharTimes()

◆ computeCreepFunction()

◆ computeDiscreteRelaxationFunction()

◆ computeStressIndependentStrainVector()

◆ computeTrueStressIndependentStrainVector()

◆ CreateStatus()

◆ generateLogTimeScale()

◆ give1dStressStiffMtrx()

◆ give3dMaterialStiffnessMatrix()

◆ giveAlphaOne()

◆ giveAlphaTwo()

◆ giveCharTime()

◆ giveCharTimeExponent()

◆ giveClassName()

◆ giveDiscreteTimes()

◆ giveEigenStrainVector()

◆ giveEModulus()

◆ giveEndOfTimeOfInterest()

◆ giveEparModulus()

◆ giveEquivalentTime()

◆ giveIPValue()

◆ giveLinearElasticMaterial()

◆ givePlaneStrainStiffMtrx()

◆ givePlaneStressStiffMtrx()

◆ givePoissonsRatio()

◆ giveRealStressVector()

◆ giveRealStressVector_1d()

◆ giveRealStressVector_2dBeamLayer()

◆ giveRealStressVector_3d()

◆ giveRealStressVector_PlaneStrain()

◆ giveRealStressVector_PlaneStress()

◆ giveRealStressVector_PlateLayer()

◆ giveShrinkageStrainVector()

◆ giveThermalDilatationVector()

◆ giveUnitComplianceMatrix()

◆ giveUnitStiffnessMatrix()

◆ hasCastingTimeSupport()

◆ hasIncrementalShrinkageFormulation()

◆ hasMaterialModeCapability()

◆ initializeFrom()

◆ isActivated()

◆ restoreIPContext()

◆ saveIPContext()

◆ updateEparModuli()

Member Data Documentation

◆ alphaOne

◆ alphaTwo

◆ begOfTimeOfInterest

◆ charTimes

◆ discreteTimeScale

◆ endOfTimeOfInterest

◆ EparVal

◆ EparValTime

◆ lattice

◆ linearElasticMaterial

◆ nu

◆ nUnits

◆ relMatAge

◆ talpha

◆ timeFactor