oofem::IsotropicDamageMaterial1 Class Reference

#include <idm1.h>

Inheritance diagram for oofem::IsotropicDamageMaterial1:

Collaboration diagram for oofem::IsotropicDamageMaterial1:

Public Member Functions
	IsotropicDamageMaterial1 (int n, Domain *d)
	Constructor.
virtual	~IsotropicDamageMaterial1 ()
	Destructor.
const char *	giveClassName () const override
const char *	giveInputRecordName () const override
void	initializeFrom (InputRecord &ir) override
void	giveInputRecord (DynamicInputRecord &input) override
bool	isCrackBandApproachUsed () const
double	computeEquivalentStrain (const FloatArray &strain, GaussPoint *gp, TimeStep *tStep) const override
void	computeEta (FloatArray &answer, const FloatArray &strain, GaussPoint *gp, TimeStep *tStep) const override
double	computeDamageParam (double kappa, const FloatArray &strain, GaussPoint *gp) const override
double	computeDamageParamForCohesiveCrack (double kappa, GaussPoint *gp) const
double	damageFunction (double kappa, GaussPoint *gp) const
double	damageFunctionPrime (double kappa, GaussPoint *gp) const override
double	complianceFunction (double kappa, GaussPoint *gp) const
double	evaluatePermanentStrain (double kappa, double omega) const override
Interface *	giveInterface (InterfaceType it) override
int	MMI_map (GaussPoint *gp, Domain *oldd, TimeStep *tStep) override
int	MMI_update (GaussPoint *gp, TimeStep *tStep, FloatArray *estrain=nullptr) override
int	MMI_finish (TimeStep *tStep) override
std::unique_ptr< MaterialStatus >	CreateStatus (GaussPoint *gp) const override
MaterialStatus *	giveStatus (GaussPoint *gp) const override
double	give (int aProperty, GaussPoint *gp) const override
bool	isCharacteristicMtrxSymmetric (MatResponseMode rMode) const override
void	restoreContext (DataStream &stream, ContextMode mode) override
void	saveContext (DataStream &stream, ContextMode mode) override
Public Member Functions inherited from oofem::IsotropicDamageMaterial
	IsotropicDamageMaterial (int n, Domain *d)
	Constructor.
virtual	~IsotropicDamageMaterial ()
	Destructor.
bool	hasMaterialModeCapability (MaterialMode mode) const override
LinearElasticMaterial *	giveLinearElasticMaterial () const
	Returns reference to undamaged (bulk) material.
FloatMatrixF< 6, 6 >	give3dMaterialStiffnessMatrix (MatResponseMode mode, GaussPoint *gp, TimeStep *tStep) const override
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.
FloatArray	giveRealStressVector_StressControl (const FloatArray &strain, const IntArray &strainControl, GaussPoint *gp, TimeStep *tStep) const override
	Iteratively calls giveRealStressVector_3d to find the stress controlled equal to zero·
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.
int	giveIPValue (FloatArray &answer, GaussPoint *gp, InternalStateType type, TimeStep *tStep) override
FloatArrayF< 6 >	giveThermalDilatationVector (GaussPoint *gp, TimeStep *tStep) const override
FloatMatrixF< 1, 1 >	give1dStressStiffMtrx (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 FloatArray	giveRealStressVector_ShellStressControl (const FloatArray &reducedE, const IntArray &strainControl, GaussPoint *gp, TimeStep *tStep) const
virtual FloatArrayF< 2 >	giveRealStressVector_Warping (const FloatArrayF< 2 > &reducedE, GaussPoint *gp, TimeStep *tStep) const
	Default implementation relies on giveRealStressVector_StressControl.
virtual FloatArrayF< 2 >	giveRealStressVector_2dBeamLayer (const FloatArrayF< 2 > &reducedE, GaussPoint *gp, TimeStep *tStep) const
	Default implementation relies on giveRealStressVector_StressControl.
virtual FloatArrayF< 5 >	giveRealStressVector_PlateLayer (const FloatArrayF< 5 > &reducedE, GaussPoint *gp, TimeStep *tStep) const
	Default implementation relies on giveRealStressVector_StressControl.
virtual FloatArrayF< 3 >	giveRealStressVector_Fiber (const FloatArrayF< 3 > &reducedE, GaussPoint *gp, TimeStep *tStep) const
	Default implementation relies on giveRealStressVector_StressControl.
virtual FloatArrayF< 3 >	giveRealStressVector_2dPlateSubSoil (const FloatArrayF< 3 > &reducedE, GaussPoint *gp, TimeStep *tStep) const
	Default implementation is not provided.
virtual FloatArrayF< 6 >	giveRealStressVector_3dBeamSubSoil (const FloatArrayF< 6 > &reducedE, GaussPoint *gp, TimeStep *tStep) const
virtual FloatArrayF< 9 >	giveFirstPKStressVector_3d (const FloatArrayF< 9 > &vF, GaussPoint *gp, TimeStep *tStep) const
	Default implementation relies on giveRealStressVector for second Piola-Kirchoff stress.
virtual FloatArrayF< 5 >	giveFirstPKStressVector_PlaneStrain (const FloatArrayF< 5 > &vF, GaussPoint *gp, TimeStep *tStep) const
	Default implementation relies on giveFirstPKStressVector_3d.
virtual FloatArray	giveFirstPKStressVector_StressControl (const FloatArray &reducedvF, const IntArray &FControl, GaussPoint *gp, TimeStep *tStep) const
	Iteratively calls giveRealStressVector_3d to find the stress controlled equal to zero·
virtual FloatArrayF< 4 >	giveFirstPKStressVector_PlaneStress (const FloatArrayF< 4 > &vF, GaussPoint *gp, TimeStep *tStep) const
	Default implementation relies on giveFirstPKStressVector_StressControl.
virtual FloatArrayF< 1 >	giveFirstPKStressVector_1d (const FloatArrayF< 1 > &vF, GaussPoint *gp, TimeStep *tStep) const
	Default implementation relies on giveFirstPKStressVector_StressControl.
virtual void	giveCauchyStressVector_3d (FloatArray &answer, GaussPoint *gp, const FloatArray &reducedF, TimeStep *tStep)
virtual void	giveCauchyStressVector_PlaneStrain (FloatArray &answer, GaussPoint *gp, const FloatArray &reducedF, TimeStep *tStep)
virtual void	giveCauchyStressVector_PlaneStress (FloatArray &answer, GaussPoint *gp, const FloatArray &reducedF, TimeStep *tStep)
virtual void	giveCauchyStressVector_1d (FloatArray &answer, GaussPoint *gp, const FloatArray &reducedF, TimeStep *tStep)
virtual void	giveEshelbyStressVector_PlaneStrain (FloatArray &answer, GaussPoint *gp, const FloatArray &reducedF, TimeStep *tStep)
double	giveReferenceTemperature ()
virtual FloatArray	computeStressIndependentStrainVector (GaussPoint *gp, TimeStep *tStep, ValueModeType mode) const
FloatArrayF< 6 >	computeStressIndependentStrainVector_3d (GaussPoint *gp, TimeStep *tStep, ValueModeType mode) const
virtual void	giveStiffnessMatrix_dPdF (FloatMatrix &answer, MatResponseMode mode, GaussPoint *gp, TimeStep *tStep)
virtual FloatMatrixF< 9, 9 >	give3dMaterialStiffnessMatrix_dPdF (MatResponseMode mode, GaussPoint *gp, TimeStep *tStep) const
virtual void	give3dMaterialStiffnessMatrix_dCde (FloatMatrix &answer, MatResponseMode mode, GaussPoint *gp, TimeStep *tStep)
void	giveStressDependentPartOfStrainVector (FloatArray &answer, GaussPoint *gp, const FloatArray &reducedStrainVector, TimeStep *tStep, ValueModeType mode) const
int	setIPValue (const FloatArray &value, GaussPoint *gp, InternalStateType type) override
int	giveIPValue (FloatArray &answer, GaussPoint *gp, InternalStateType type, TimeStep *tStep) override
virtual FloatMatrixF< 4, 4 >	givePlaneStressStiffnessMatrix_dPdF (MatResponseMode mmode, GaussPoint *gp, TimeStep *tStep) const
virtual void	givePlaneStressStiffMtrx_dCde (FloatMatrix &answer, MatResponseMode mmode, GaussPoint *gp, TimeStep *tStep)
virtual FloatMatrixF< 5, 5 >	givePlaneStrainStiffnessMatrix_dPdF (MatResponseMode mmode, GaussPoint *gp, TimeStep *tStep) const
virtual void	givePlaneStrainStiffMtrx_dCde (FloatMatrix &answer, MatResponseMode mmode, GaussPoint *gp, TimeStep *tStep)
virtual FloatMatrixF< 1, 1 >	give1dStressStiffnessMatrix_dPdF (MatResponseMode mmode, GaussPoint *gp, TimeStep *tStep) const
virtual void	give1dStressStiffMtrx_dCde (FloatMatrix &answer, MatResponseMode mmode, GaussPoint *gp, TimeStep *tStep)
virtual FloatMatrixF< 2, 2 >	give2dBeamLayerStiffMtrx (MatResponseMode mmode, GaussPoint *gp, TimeStep *tStep) const
virtual FloatMatrixF< 5, 5 >	givePlateLayerStiffMtrx (MatResponseMode mmode, GaussPoint *gp, TimeStep *tStep) const
virtual FloatMatrixF< 3, 3 >	giveFiberStiffMtrx (MatResponseMode mmode, GaussPoint *gp, TimeStep *tStep) const
virtual FloatMatrixF< 3, 3 >	give2dPlateSubSoilStiffMtrx (MatResponseMode mmode, GaussPoint *gp, TimeStep *tStep) const
virtual FloatMatrixF< 6, 6 >	give3dBeamSubSoilStiffMtrx (MatResponseMode mmode, GaussPoint *gp, TimeStep *tStep) const
Public Member Functions inherited from oofem::Material
	Material (int n, Domain *d)
virtual	~Material ()=default
	Destructor.
virtual double	giveCharacteristicValue (MatResponseMode type, GaussPoint *gp, TimeStep *tStep) const
	Returns characteristic value of the receiver.
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 int	packUnknowns (DataStream &buff, TimeStep *tStep, GaussPoint *ip)
virtual int	unpackAndUpdateUnknowns (DataStream &buff, TimeStep *tStep, GaussPoint *ip)
virtual int	estimatePackSize (DataStream &buff, GaussPoint *ip)
virtual double	predictRelativeComputationalCost (GaussPoint *gp)
virtual double	predictRelativeRedistributionCost (GaussPoint *gp)
virtual void	initTempStatus (GaussPoint *gp) const
void	saveContext (DataStream &stream, ContextMode mode) override
void	restoreContext (DataStream &stream, ContextMode mode) override
Public Member Functions inherited from oofem::FEMComponent
	FEMComponent (int n, Domain *d)
virtual	~FEMComponent ()=default
	Virtual destructor.
Domain *	giveDomain () const
virtual void	setDomain (Domain *d)
int	giveNumber () const
void	setNumber (int num)
virtual void	updateLocalNumbering (EntityRenumberingFunctor &f)
virtual void	initializeFrom (InputRecord &ir, int priority)
virtual void	initializeFinish ()
virtual void	postInitialize ()
	Performs post initialization steps. Called after all components are created and initialized.
virtual void	printOutputAt (FILE *file, TimeStep *tStep)
std::string	errorInfo (const char *func) const
	Returns string for prepending output (used by error reporting macros).
Public Member Functions inherited from oofem::RandomMaterialExtensionInterface
	RandomMaterialExtensionInterface ()
	Constructor.
virtual	~RandomMaterialExtensionInterface ()
	Destructor.
void	initializeFrom (InputRecord &ir)
void	giveInputRecord (DynamicInputRecord &ir)
bool	give (int key, GaussPoint *gp, double &value) const
Public Member Functions inherited from oofem::Interface
	Interface ()
	Constructor.
virtual	~Interface ()
Public Member Functions inherited from oofem::MaterialModelMapperInterface
	MaterialModelMapperInterface ()
	Constructor.
virtual	~MaterialModelMapperInterface ()
	Destructor.

Static Public Member Functions
static void	computeStrainInvariants (const FloatArray &strainVector, double &I1e, double &J2e)
Static Public Member Functions inherited from oofem::StructuralMaterial
static int	giveSymVI (int ind1, int ind2)
static int	giveVI (int ind1, int ind2)
static FloatMatrixF< 9, 9 >	convert_dSdE_2_dPdF_3D (const FloatMatrixF< 6, 6 > &dSdE, const FloatArrayF< 6 > &S, const FloatArrayF< 9 > &F)
static FloatMatrixF< 5, 5 >	convert_dSdE_2_dPdF_PlaneStrain (const FloatMatrixF< 4, 4 > &dSdE, const FloatArrayF< 4 > &S, const FloatArrayF< 5 > &F)
static FloatMatrixF< 4, 4 >	convert_dSdE_2_dPdF_PlaneStress (const FloatMatrixF< 3, 3 > &dSdE, const FloatArrayF< 3 > &S, const FloatArrayF< 4 > &F)
static FloatMatrixF< 1, 1 >	convert_dSdE_2_dPdF_1D (const FloatMatrixF< 1, 1 > &dSdE, const FloatArrayF< 1 > &S, const FloatArrayF< 1 > &F)
static void	computePrincipalValues (FloatArray &answer, const FloatArray &s, stressStrainPrincMode mode)
	Common functions for convenience.
static FloatArrayF< 3 >	computePrincipalValues (const FloatMatrixF< 3, 3 > &s)
static FloatArrayF< 3 >	computePrincipalValues (double I1, double I2, double I3)
static void	computePrincipalValDir (FloatArray &answer, FloatMatrix &dir, const FloatArray &s, stressStrainPrincMode mode)
static std::pair< FloatArrayF< 3 >, FloatMatrixF< 3, 3 > >	computePrincipalValDir (const FloatMatrixF< 3, 3 > &s)
static FloatArrayF< 6 >	computeDeviator (const FloatArrayF< 6 > &s)
static std::pair< FloatArrayF< 6 >, double >	computeDeviatoricVolumetricSplit (const FloatArrayF< 6 > &s)
static FloatArrayF< 6 >	computeDeviatoricVolumetricSum (const FloatArrayF< 6 > &dev, double mean)
static FloatArrayF< 6 >	applyDeviatoricElasticCompliance (const FloatArrayF< 6 > &stress, double EModulus, double nu)
static FloatArrayF< 6 >	applyDeviatoricElasticCompliance (const FloatArrayF< 6 > &stress, double GModulus)
static FloatArrayF< 6 >	applyDeviatoricElasticStiffness (const FloatArrayF< 6 > &strain, double EModulus, double nu)
static FloatArrayF< 6 >	applyDeviatoricElasticStiffness (const FloatArrayF< 6 > &strain, double GModulus)
static FloatArrayF< 6 >	applyElasticStiffness (const FloatArrayF< 6 > &strain, double EModulus, double nu)
static FloatArrayF< 6 >	applyElasticCompliance (const FloatArrayF< 6 > &stress, double EModulus, double nu)
static double	computeStressNorm (const FloatArrayF< 6 > &stress)
static double	computeFirstInvariant (const FloatArrayF< 6 > &s)
static double	computeSecondStressInvariant (const FloatArrayF< 6 > &s)
static double	computeThirdStressInvariant (const FloatArrayF< 6 > &s)
static double	computeFirstCoordinate (const FloatArrayF< 6 > &s)
static double	computeSecondCoordinate (const FloatArrayF< 6 > &s)
static double	computeThirdCoordinate (const FloatArrayF< 6 > &s)
static int	giveVoigtVectorMask (IntArray &answer, MaterialMode mmode)
static int	giveVoigtSymVectorMask (IntArray &answer, MaterialMode mmode)
static void	giveInvertedVoigtVectorMask (IntArray &answer, MaterialMode mmode)
static int	giveSizeOfVoigtVector (MaterialMode mmode)
static int	giveSizeOfVoigtSymVector (MaterialMode mmode)
static void	giveFullVectorForm (FloatArray &answer, const FloatArray &strainVector, MaterialMode matMode)
	Converts the reduced symmetric Voigt vector (2nd order tensor) to full form.
static void	giveFullVectorFormF (FloatArray &answer, const FloatArray &strainVector, MaterialMode matMode)
	Converts the reduced deformation gradient Voigt vector (2nd order tensor).
static void	giveFullSymVectorForm (FloatArray &answer, const FloatArray &vec, MaterialMode matMode)
	Converts the reduced unsymmetric Voigt vector (2nd order tensor) to full form.
static void	giveReducedVectorForm (FloatArray &answer, const FloatArray &vec, MaterialMode matMode)
	Converts the full symmetric Voigt vector (2nd order tensor) to reduced form.
static void	giveReducedSymVectorForm (FloatArray &answer, const FloatArray &vec, MaterialMode matMode)
	Converts the full unsymmetric Voigt vector (2nd order tensor) to reduced form.
static void	giveFullSymMatrixForm (FloatMatrix &answer, const FloatMatrix &red, MaterialMode matMode)
	Converts the full unsymmetric Voigt matrix (4th order tensor) to reduced form.
static void	giveReducedMatrixForm (FloatMatrix &answer, const FloatMatrix &full, MaterialMode matMode)
	Converts the full symmetric Voigt matrix (4th order tensor) to reduced form.
static void	giveReducedSymMatrixForm (FloatMatrix &answer, const FloatMatrix &full, MaterialMode matMode)
	Converts the full unsymmetric Voigt matrix (4th order tensor) to reduced form.
static FloatArrayF< 6 >	transformStrainVectorTo (const FloatMatrixF< 3, 3 > &base, const FloatArrayF< 6 > &strain, bool transpose=false)
static FloatArrayF< 6 >	transformStressVectorTo (const FloatMatrixF< 3, 3 > &base, const FloatArrayF< 6 > &stress, bool transpose=false)
static double	computeVonMisesStress (const FloatArray &currentStress)
static double	computeVonMisesStress_3D (const FloatArrayF< 6 > &stress)
static double	computeVonMisesStress_PlaneStress (const FloatArrayF< 3 > &stress)
static FloatMatrixF< 6, 6 >	giveStrainVectorTranformationMtrx (const FloatMatrixF< 3, 3 > &base, bool transpose=false)
static FloatMatrixF< 3, 3 >	give2DStrainVectorTranformationMtrx (const FloatMatrixF< 2, 2 > &base, bool transpose=false)
static FloatMatrixF< 6, 6 >	giveStressVectorTranformationMtrx (const FloatMatrixF< 3, 3 > &base, bool transpose=false)
static FloatMatrixF< 3, 3 >	givePlaneStressVectorTranformationMtrx (const FloatMatrixF< 2, 2 > &base, bool transpose=false)
static void	sortPrincDirAndValCloseTo (FloatArray &pVal, FloatMatrix &pDir, const FloatMatrix &toPDir)

Protected Types
enum	EquivStrainType {   EST_Mazars =0 , EST_Rankine_Smooth =1 , EST_ElasticEnergy =2 , EST_Mises =3 ,   EST_Rankine_Standard =4 , EST_ElasticEnergyPositiveStress =5 , EST_ElasticEnergyPositiveStrain =6 , EST_Griffith =7 ,   EST_Unknown = 100 }
enum	SofteningType {   ST_Unknown , ST_Exponential , ST_Linear , ST_Mazars ,   ST_Smooth , ST_SmoothExtended , ST_Exponential_Cohesive_Crack , ST_Linear_Cohesive_Crack ,   ST_BiLinear_Cohesive_Crack , ST_Disable_Damage , ST_PowerExponential , ST_DoubleExponential ,   ST_Hordijk_Cohesive_Crack , ST_ModPowerExponential , ST_Trilinear_Cohesive_Crack }
Protected Types inherited from oofem::IsotropicDamageMaterial
enum	loaUnloCriterium { idm_strainLevelCR , idm_damageLevelCR }

Protected Member Functions
void	initDamaged (double kappa, FloatArray &totalStrainVector, GaussPoint *gp) const override
Protected Member Functions inherited from oofem::IsotropicDamageMaterial
FloatMatrixF< 3, 3 >	givePlaneStressStiffMtrx (MatResponseMode mmode, GaussPoint *gp, TimeStep *tStep) const override
FloatMatrixF< 4, 4 >	givePlaneStrainStiffMtrx (MatResponseMode mmode, GaussPoint *gp, TimeStep *tStep) const override
Protected Member Functions inherited from oofem::RandomMaterialExtensionInterface
void	_generateStatusVariables (GaussPoint *) const

Protected Attributes
double	e0 = 0.
	Equivalent strain at stress peak (or a similar parameter).
double	ef = 0.
	Determines ductility -> corresponds to fracturing strain.
double	wf = 0.
	Determines ductility -> corresponds to crack opening in the cohesive crack model.
double	gf = 0.
double	gft = 0.
	Determines the softening for the bilinear law -> corresponds to the total fracture energy.
double	ek = 0.
	Determines the softening for the bilinear law -> corresponds to the strain at the knee point.
double	wk = 0.
	Determines the softening for the bilinear law -> corresponds to the crack opening at the knee point.
double	sk = 0.
	Determines the softening for the bilinear law -> corresponds to the stress at the knee point.
double	c1 = 3.
	Parameters used in Hordijk's softening law.
double	c2 = 6.93
double	w_k = 0.
	Parameters used in Trilinear_Cohesive_Crack softening law.
double	w_r = 0.
double	w_f = 0.
double	f_k = 0.
double	f_r = 0.
EquivStrainType	equivStrainType = EST_Unknown
	Parameter specifying the definition of equivalent strain.
double	k = 0.
	Parameter used in Mises definition of equivalent strain.
double	griff_n = 8.
	Parameter used in Griffith's criterion.
int	damageLaw = 0
	Temporary parameter reading type of softening law, used in other isotropic damage material models.
SofteningType	softType = ST_Unknown
	Parameter specifying the type of softening (damage law).
double	At = 0.
	Parameters used in Mazars damage law.
double	Bt = 0.
double	md = 1.
	Parameter used in "smooth damage law".
double	e1 = 0.
	Parameters used if softType = 7 (extended smooth damage law).
double	e2 = 0.
double	s1 = 0.
double	nd = 0.
int	checkSnapBack = 0
	Check possible snap back flag.
double	ep = 0.
	auxiliary input variablesfor softType == ST_SmoothExtended
double	ft = 0.
double	ps_alpha = 0.
	Parameters used by the model with permanent strain.
double	ps_H = 0.
ElementCharSizeMethod	ecsMethod = ECSM_Unknown
	Method used for evaluation of characteristic element size.
Set *	sourceElemSet = nullptr
	Cached source element set used to map internal variables (adaptivity), created on demand.
Protected Attributes inherited from oofem::IsotropicDamageMaterial
double	tempDillatCoeff = 0.
	Coefficient of thermal dilatation.
double	maxOmega = 0.999999
	Maximum limit on omega. The purpose is elimination of a too compliant material which may cause convergence problems. Set to something like 0.99 if needed.
int	permStrain = 0
	Indicator of the type of permanent strain formulation (0 = standard damage with no permanent strain).
LinearElasticMaterial *	linearElasticMaterial = nullptr
	Reference to bulk (undamaged) material.
enum oofem::IsotropicDamageMaterial::loaUnloCriterium	llcriteria = idm_strainLevelCR
Protected Attributes inherited from oofem::StructuralMaterial
double	referenceTemperature = 0.
	Reference temperature (temperature, when material has been built into structure).
MatResponseMode	SCStiffMode = TangentStiffness
	stifness mode used in stress control
double	SCRelTol = 1.e-3
	relative tolerance for stress control
double	SCAbsTol = 1.e-12
	absolute stress tolerance for stress control
int	SCMaxiter = 100000
	maximum iterations for stress-control
Protected Attributes inherited from oofem::Material
Dictionary	propertyDictionary
double	castingTime
int	preCastingTimeMat
	Material existing before casting time - optional parameter, zero by default.
Protected Attributes inherited from oofem::FEMComponent
int	number
	Component number.
Domain *	domain
	Link to domain object, useful for communicating with other FEM components.
Protected Attributes inherited from oofem::RandomMaterialExtensionInterface
IntArray	randVariables
	Array of randomized variables (identified by a key).
IntArray	randomVariableGenerators
	Array of generators id's for corresponding randomized variables.

Static Protected Attributes
static MMAContainingElementProjection	mapper
	Mapper used to map internal variables in adaptivity.

Additional Inherited Members
Static Public Attributes inherited from oofem::StructuralMaterial
static std::array< std::array< int, 3 >, 3 >	vIindex
	Voigt index map.
static std::array< std::array< int, 3 >, 3 >	svIndex
	Symmetric Voigt index map.

Detailed Description

This class implements a simple local isotropic damage model for concrete in tension. A model is based on isotropic damage concept, assuming that damage evolution law is postulated in explicit form, relation damage parameter (omega) to scalar measure of the largest strain level ever reached in material (kappa).

Definition at line 139 of file idm1.h.

Member Enumeration Documentation

EquivStrainType

enum oofem::IsotropicDamageMaterial1::EquivStrainType

protected

Type characterizing the algorithm used to compute equivalent strain measure. Note that the assigned numbers to enum values have to correspond to values used in initializeFrom to resolve EquivStrainType. If not, the consistency between initializeFrom and giveInputRecord methods is lost.

Enumerator
EST_Mazars
EST_Rankine_Smooth
EST_ElasticEnergy
EST_Mises
EST_Rankine_Standard
EST_ElasticEnergyPositiveStress
EST_ElasticEnergyPositiveStrain
EST_Griffith
EST_Unknown

Definition at line 182 of file idm1.h.

SofteningType

enum oofem::IsotropicDamageMaterial1::SofteningType

protected

Type characterizing the formula for the damage law. For example, linear softening can be specified with fracturing strain or crack opening.

Enumerator
ST_Unknown
ST_Exponential
ST_Linear
ST_Mazars
ST_Smooth
ST_SmoothExtended
ST_Exponential_Cohesive_Crack
ST_Linear_Cohesive_Crack
ST_BiLinear_Cohesive_Crack
ST_Disable_Damage
ST_PowerExponential
ST_DoubleExponential
ST_Hordijk_Cohesive_Crack
ST_ModPowerExponential
ST_Trilinear_Cohesive_Crack

Definition at line 208 of file idm1.h.

Constructor & Destructor Documentation

IsotropicDamageMaterial1()

oofem::IsotropicDamageMaterial1::IsotropicDamageMaterial1	(	int	n,
		Domain *	d )

Constructor.

Definition at line 70 of file idm1.C.

References oofem::IsotropicDamageMaterial::IsotropicDamageMaterial(), oofem::IsotropicDamageMaterial::linearElasticMaterial, and oofem::RandomMaterialExtensionInterface::RandomMaterialExtensionInterface().

Referenced by oofem::IDNLMaterial::IDNLMaterial(), oofem::IsotropicGradientDamageMaterial::IsotropicGradientDamageMaterial(), and oofem::MazarsMaterial::MazarsMaterial().

~IsotropicDamageMaterial1()

oofem::IsotropicDamageMaterial1::~IsotropicDamageMaterial1 ( )

virtual

Destructor.

Definition at line 78 of file idm1.C.

References sourceElemSet.

Member Function Documentation

complianceFunction()

double oofem::IsotropicDamageMaterial1::complianceFunction	(	double	kappa,
		GaussPoint *	gp ) const

Returns the value of compliance parameter corresponding to a given value of the damage-driving variable kappa, depending on the type of selected damage law, using a simple dependence (no adjustment for element size). The compliance parameter gamma is defined as gamma = omega/(1-omega) where omega is the damage.

Parameters

kappa	Equivalent strain measure.
gp	Integration point.

Definition at line 1134 of file idm1.C.

References damageFunction().

Referenced by oofem::IDNLMaterial::updateBeforeNonlocAverage().

computeDamageParam()

double oofem::IsotropicDamageMaterial1::computeDamageParam ( double kappa, const FloatArray & strain, GaussPoint * gp ) const

overridevirtual

Computes the value of damage parameter omega, based on given value of equivalent strain.

Parameters

[out]	omega	Contains result.
	kappa	Equivalent strain measure.
	strain	Total strain in full form.
	gp	Integration point.

Implements oofem::IsotropicDamageMaterial.

Reimplemented in oofem::MazarsMaterial.

Definition at line 796 of file idm1.C.

References computeDamageParamForCohesiveCrack(), damageFunction(), isCrackBandApproachUsed(), softType, and ST_Disable_Damage.

Referenced by oofem::IsotropicGradientDamageMaterial::giveRealStressVectorGradientDamage().

computeDamageParamForCohesiveCrack()

double oofem::IsotropicDamageMaterial1::computeDamageParamForCohesiveCrack	(	double	kappa,
		GaussPoint *	gp ) const

computes the value of damage parameter omega, based on a given value of equivalent strain, using iterations to achieve objectivity, based on the crack band concept (effective element size used)

Parameters

[out]	omega	Contains the resulting damage.
	kappa	Equivalent strain measure.
	gp	Integration point.

Definition at line 808 of file idm1.C.

References checkSnapBack, E, e0, e0_ID, ef, ek, ek_ID, f_k, f_r, gf, gf_ID, gft, gft_ID, give(), oofem::GaussPoint::giveElement(), oofem::Element::giveGlobalNumber(), oofem::IsotropicDamageMaterialStatus::giveLe(), oofem::FEMComponent::giveNumber(), giveStatus(), IDM1_ITERATION_LIMIT, oofem::IsotropicDamageMaterial::linearElasticMaterial, oofem::IsotropicDamageMaterial::maxOmega, OOFEM_ERROR, OOFEM_WARNING, sk, softType, ST_BiLinear_Cohesive_Crack, ST_Exponential_Cohesive_Crack, ST_Linear_Cohesive_Crack, ST_Trilinear_Cohesive_Crack, w_f, w_k, w_r, wf, wf_ID, and wk.

Referenced by computeDamageParam().

computeEquivalentStrain()

double oofem::IsotropicDamageMaterial1::computeEquivalentStrain ( const FloatArray & strain, GaussPoint * gp, TimeStep * tStep ) const

overridevirtual

Computes the equivalent strain measure from given strain vector (full form).

Parameters

[out]	kappa	Return parameter, containing the corresponding equivalent strain.
	strain	Total strain vector in full form.
	gp	Integration point.
	tStep	Time step.

Implements oofem::IsotropicDamageMaterial.

Reimplemented in oofem::MazarsMaterial, and oofem::MazarsNLMaterial.

Definition at line 436 of file idm1.C.

References oofem::FloatArray::at(), oofem::FloatArray::beProductOf(), oofem::StructuralMaterial::computePrincipalValues(), computeStrainInvariants(), oofem::FloatArray::dotProduct(), equivStrainType, EST_ElasticEnergy, EST_ElasticEnergyPositiveStrain, EST_ElasticEnergyPositiveStress, EST_Griffith, EST_Mazars, EST_Mises, EST_Rankine_Smooth, EST_Rankine_Standard, oofem::GaussPoint::giveMaterialMode(), griff_n, oofem::FloatArray::isEmpty(), k, oofem::IsotropicDamageMaterial::linearElasticMaterial, oofem::max(), NYxz, OOFEM_ERROR, oofem::principal_strain, oofem::principal_stress, and oofem::sum().

Referenced by oofem::IsotropicGradientDamageMaterial::giveRealStressVectorGradientDamage().

computeEta()

void oofem::IsotropicDamageMaterial1::computeEta ( FloatArray & answer, const FloatArray & strain, GaussPoint * gp, TimeStep * tStep ) const

overridevirtual

Computes derivative of the equivalent strain with regards to strain

Parameters

[out]	answer	Contains the resulting derivative.
	strain	Strain vector.
	gp	Integration point.
	tStep	Time step.

Reimplemented from oofem::IsotropicDamageMaterial.

Definition at line 568 of file idm1.C.

References oofem::FloatArray::at(), oofem::FloatMatrix::at(), oofem::FloatArray::beColumnOf(), oofem::FloatMatrix::beDyadicProductOf(), oofem::FloatArray::beProductOf(), oofem::StrainVector::computePrincipalValDir(), oofem::StressVector::computePrincipalValDir(), oofem::StructuralMaterial::computePrincipalValDir(), oofem::FloatArray::dotProduct(), equivStrainType, EST_ElasticEnergy, EST_Mazars, EST_Rankine_Smooth, EST_Rankine_Standard, oofem::Material::give(), oofem::GaussPoint::giveMaterialMode(), oofem::FloatArray::giveSize(), oofem::StructuralMaterial::giveStiffnessMatrix(), oofem::FloatArray::isEmpty(), oofem::IsotropicDamageMaterial::linearElasticMaterial, N, NYxz, OOFEM_ERROR, oofem::FloatMatrix::plusDyadSymmUpper(), oofem::principal_strain, oofem::principal_stress, oofem::FloatArray::resize(), oofem::FloatMatrix::resize(), oofem::FloatArray::resizeWithValues(), oofem::sum(), oofem::FloatMatrix::symmetrized(), oofem::FloatArray::times(), oofem::FloatMatrix::times(), oofem::FloatArray::zero(), and oofem::FloatMatrix::zero().

Referenced by oofem::IsotropicGradientDamageMaterial::giveGradientDamageStiffnessMatrix_du().

computeStrainInvariants()

void oofem::IsotropicDamageMaterial1::computeStrainInvariants ( const FloatArray & strainVector, double & I1e, double & J2e )

static

Computes invariants I1 and J2 of the strain tensor from the strain components stored in a vector.

Parameters

	strainVector	Input strain components.
[out]	I1e	Output value of strain invariant I1.
[out]	J2e	Output value of strain invariant J2.

Definition at line 786 of file idm1.C.

References oofem::FloatArray::at(), and s1.

Referenced by computeEquivalentStrain().

CreateStatus()

std::unique_ptr< MaterialStatus > oofem::IsotropicDamageMaterial1::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::IsotropicDamageMaterial.

Reimplemented in oofem::IsotropicGradientDamageMaterial, oofem::MazarsMaterial, and oofem::MazarsNLMaterial.

Definition at line 1386 of file idm1.C.

Referenced by giveStatus().

damageFunction()

double oofem::IsotropicDamageMaterial1::damageFunction	(	double	kappa,
		GaussPoint *	gp ) const

Returns the value of damage parameter corresponding to a given value of the damage-driving variable kappa, depending on the type of selected damage law, using a simple dependence (no adjustment for element size).

Parameters

kappa	Equivalent strain measure.
gp	Integration point.

Definition at line 954 of file idm1.C.

References At, Bt, c2, e0, e0_ID, e1, e2, ef, ef_ID, give(), md, nd, OOFEM_WARNING, oofem::IsotropicDamageMaterial::permStrain, ps_alpha, s1, softType, ST_DoubleExponential, ST_Exponential, ST_Linear, ST_Mazars, ST_ModPowerExponential, ST_PowerExponential, ST_Smooth, and ST_SmoothExtended.

Referenced by complianceFunction(), oofem::IDNLMaterial::computeDamageParam(), computeDamageParam(), and oofem::IDNLMaterial::updateBeforeNonlocAverage().

damageFunctionPrime()

double oofem::IsotropicDamageMaterial1::damageFunctionPrime ( double kappa, GaussPoint * gp ) const

overridevirtual

Returns the value of compliance parameter corresponding to a given value of the damage-driving variable kappa, depending on the type of selected damage law, using a simple dependence (no adjustment for element size). The compliance parameter gamma is defined as gamma = omega/(1-omega) where omega is the damage.

Parameters

kappa	Equivalent strain measure.
gp	Integration point. Returns the value of derivative of damage function wrt damage-driving variable kappa corresponding to a given value of the kappa, depending on the type of selected damage law.
kappa	Equivalent strain measure.
gp	Integration point.

Reimplemented from oofem::IsotropicDamageMaterial.

Definition at line 1024 of file idm1.C.

References At, Bt, E, e0, e0_ID, e1, e2, ef, ef_ID, f_k, f_r, gf, give(), oofem::IsotropicDamageMaterialStatus::giveLe(), giveStatus(), oofem::IsotropicDamageMaterialStatus::giveTempDamage(), oofem::IsotropicDamageMaterial::linearElasticMaterial, md, nd, OOFEM_ERROR, s1, softType, ST_Exponential, ST_Exponential_Cohesive_Crack, ST_Linear, ST_Linear_Cohesive_Crack, ST_Mazars, ST_Smooth, ST_SmoothExtended, ST_Trilinear_Cohesive_Crack, w_f, w_k, w_r, and wf.

Referenced by oofem::IsotropicGradientDamageMaterial::giveGradientDamageStiffnessMatrix_dd_BN(), oofem::IsotropicGradientDamageMaterial::giveGradientDamageStiffnessMatrix_dd_NN(), and oofem::IsotropicGradientDamageMaterial::giveGradientDamageStiffnessMatrix_ud().

evaluatePermanentStrain()

double oofem::IsotropicDamageMaterial1::evaluatePermanentStrain ( double kappa, double omega ) const

overridevirtual

Reimplemented from oofem::IsotropicDamageMaterial.

Definition at line 1141 of file idm1.C.

References oofem::IsotropicDamageMaterial::permStrain, and ps_alpha.

give()

double oofem::IsotropicDamageMaterial1::give ( int aProperty, GaussPoint * gp ) const

overridevirtual

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

Parameters

aProperty	ID of property requested.
gp	Integration point,

Returns

Property value.

Reimplemented from oofem::IsotropicDamageMaterial.

Definition at line 1324 of file idm1.C.

References e0, e0_ID, ef, ef_ID, ek, ek_ID, gf, gf_ID, gft, gft_ID, giveStatus(), wf, and wf_ID.

Referenced by computeDamageParamForCohesiveCrack(), damageFunction(), damageFunctionPrime(), oofem::IDNLMaterial::giveLocalNonlocalStiffnessContribution(), initDamaged(), and oofem::IDNLMaterial::NonlocalMaterialStiffnessInterface_showSparseMtrxStructure().

giveClassName()

const char * oofem::IsotropicDamageMaterial1::giveClassName ( ) const

inlineoverridevirtual

Returns

Class name of the receiver.

Reimplemented from oofem::IsotropicDamageMaterial.

Reimplemented in oofem::IsotropicGradientDamageMaterial, oofem::MazarsMaterial, and oofem::MazarsNLMaterial.

Definition at line 258 of file idm1.h.

giveInputRecord()

void oofem::IsotropicDamageMaterial1::giveInputRecord ( DynamicInputRecord & input )

overridevirtual

Setups the input record string of receiver.

Parameters

input

Dynamic input record to be filled by receiver.

Reimplemented from oofem::IsotropicDamageMaterial.

Definition at line 352 of file idm1.C.

References _IFT_IsotropicDamageMaterial1_At, _IFT_IsotropicDamageMaterial1_Bt, _IFT_IsotropicDamageMaterial1_damageLaw, _IFT_IsotropicDamageMaterial1_e0, _IFT_IsotropicDamageMaterial1_e1, _IFT_IsotropicDamageMaterial1_e2, _IFT_IsotropicDamageMaterial1_ecsm, _IFT_IsotropicDamageMaterial1_ef, _IFT_IsotropicDamageMaterial1_ek, _IFT_IsotropicDamageMaterial1_ep, _IFT_IsotropicDamageMaterial1_equivstraintype, _IFT_IsotropicDamageMaterial1_f_k, _IFT_IsotropicDamageMaterial1_f_r, _IFT_IsotropicDamageMaterial1_ft, _IFT_IsotropicDamageMaterial1_gf, _IFT_IsotropicDamageMaterial1_gft, _IFT_IsotropicDamageMaterial1_md, _IFT_IsotropicDamageMaterial1_nd, _IFT_IsotropicDamageMaterial1_sk, _IFT_IsotropicDamageMaterial1_w_f, _IFT_IsotropicDamageMaterial1_w_k, _IFT_IsotropicDamageMaterial1_w_r, _IFT_IsotropicDamageMaterial1_wf, _IFT_IsotropicDamageMaterial1_wk, At, Bt, damageLaw, e0, e1, e2, ecsMethod, ef, ek, ep, equivStrainType, f_k, f_r, ft, gf, gft, oofem::IsotropicDamageMaterial::linearElasticMaterial, mapper, md, nd, oofem::DynamicInputRecord::setField(), sk, softType, ST_BiLinear_Cohesive_Crack, ST_Exponential, ST_Exponential_Cohesive_Crack, ST_Linear_Cohesive_Crack, ST_Trilinear_Cohesive_Crack, w_f, w_k, w_r, wf, and wk.

Referenced by saveContext().

giveInputRecordName()

const char * oofem::IsotropicDamageMaterial1::giveInputRecordName ( ) const

inlineoverridevirtual

Returns

Input record name of the receiver.

Implements oofem::FEMComponent.

Reimplemented in oofem::IsotropicGradientDamageMaterial, and oofem::MazarsMaterial.

Definition at line 259 of file idm1.h.

References _IFT_IsotropicDamageMaterial1_Name.

giveInterface()

Interface * oofem::IsotropicDamageMaterial1::giveInterface ( InterfaceType t )

overridevirtual

Interface requesting service.

See also

InterfaceType

Returns

Requested interface if implemented, otherwise NULL.

Reimplemented from oofem::FEMComponent.

Reimplemented in oofem::IsotropicGradientDamageMaterial, and oofem::MazarsNLMaterial.

Definition at line 1348 of file idm1.C.

References oofem::MaterialModelMapperInterface::MaterialModelMapperInterface(), and oofem::MaterialModelMapperInterfaceType.

giveStatus()

MaterialStatus * oofem::IsotropicDamageMaterial1::giveStatus ( GaussPoint * gp ) const

overridevirtual

Returns material status of receiver in given integration point. If status does not exist yet, it is created using CreateStatus member function.

Parameters

gp	Returns reference to material status belonging to integration point gp.

Returns

Material status associated with given integration point.

Reimplemented from oofem::Material.

Definition at line 1392 of file idm1.C.

References oofem::RandomMaterialExtensionInterface::_generateStatusVariables(), CreateStatus(), oofem::GaussPoint::giveMaterialStatus(), oofem::GaussPoint::hasMaterialStatus(), and oofem::GaussPoint::setMaterialStatus().

Referenced by oofem::IDNLMaterial::computeAngleAndSigmaRatio(), computeDamageParamForCohesiveCrack(), oofem::IsotropicGradientDamageMaterial::computeEikonalInternalLength_a(), oofem::IsotropicGradientDamageMaterial::computeEikonalInternalLength_aPrime(), oofem::IsotropicGradientDamageMaterial::computeEikonalInternalLength_b(), oofem::IsotropicGradientDamageMaterial::computeEikonalInternalLength_bPrime(), oofem::IDNLMaterial::computeEquivalentStrain(), oofem::MazarsNLMaterial::computeEquivalentStrain(), oofem::MazarsMaterial::computeGc(), oofem::MazarsMaterial::computeGt(), oofem::IsotropicGradientDamageMaterial::computeInternalLength(), damageFunctionPrime(), give(), oofem::IsotropicGradientDamageMaterial::giveGradientDamageStiffnessMatrix_dd_BN(), oofem::IsotropicGradientDamageMaterial::giveGradientDamageStiffnessMatrix_dd_NN(), oofem::IsotropicGradientDamageMaterial::giveGradientDamageStiffnessMatrix_du(), oofem::IsotropicGradientDamageMaterial::giveGradientDamageStiffnessMatrix_ud(), oofem::IsotropicGradientDamageMaterial::giveGradientDamageStiffnessMatrix_uu(), oofem::IDNLMaterial::giveIPValue(), oofem::IDNLMaterial::giveLocalNonlocalStiffnessContribution(), oofem::IsotropicGradientDamageMaterial::giveNonlocalInternalForces_N_factor(), oofem::IDNLMaterial::giveNonlocalMetricModifierAt(), oofem::IsotropicGradientDamageMaterial::giveRealStressVectorGradientDamage(), oofem::IDNLMaterial::giveRemoteNonlocalStiffnessContribution(), initDamaged(), oofem::MazarsMaterial::initDamaged(), oofem::MazarsNLMaterial::initDamaged(), MMI_map(), MMI_update(), oofem::IDNLMaterial::NonlocalMaterialStiffnessInterface_addIPContribution(), oofem::IDNLMaterial::NonlocalMaterialStiffnessInterface_giveIntegrationDomainList(), oofem::IDNLMaterial::NonlocalMaterialStiffnessInterface_showSparseMtrxStructure(), oofem::IDNLMaterial::packUnknowns(), oofem::MazarsNLMaterial::packUnknowns(), oofem::IDNLMaterial::predictRelativeComputationalCost(), oofem::IDNLMaterial::unpackAndUpdateUnknowns(), oofem::MazarsNLMaterial::unpackAndUpdateUnknowns(), oofem::IDNLMaterial::updateBeforeNonlocAverage(), and oofem::MazarsNLMaterial::updateBeforeNonlocAverage().

initDamaged()

void oofem::IsotropicDamageMaterial1::initDamaged ( double kappa, FloatArray & totalStrainVector, GaussPoint * gp ) const

overrideprotectedvirtual

Performs initialization, when damage first appear. The characteristic length is computed from the direction of largest positive principal strain and stored in corresponding status.

Parameters

kappa	Scalar measure of strain level.
totalStrainVector	Current total strain vector.
gp	Integration point.

Reimplemented from oofem::IsotropicDamageMaterial.

Reimplemented in oofem::MazarsMaterial, and oofem::MazarsNLMaterial.

Definition at line 1168 of file idm1.C.

References oofem::FloatMatrix::add(), oofem::FloatArray::at(), oofem::FloatMatrix::at(), oofem::FloatArray::beColumnOf(), oofem::FloatArray::beProductOf(), checkSnapBack, oofem::StructuralMaterial::computePrincipalValDir(), oofem::FEMComponent::domain, E, e0, e0_ID, ecsMethod, ef, ef_ID, equivStrainType, EST_Griffith, gf, gf_ID, give(), oofem::Element::giveCharacteristicSize(), oofem::GaussPoint::giveElement(), oofem::FloatArray::giveIndexMaxElem(), oofem::FloatArray::giveIndexMinElem(), oofem::Element::giveLabel(), oofem::GaussPoint::giveMaterialMode(), giveStatus(), oofem::StructuralMaterial::giveStiffnessMatrix(), isCrackBandApproachUsed(), oofem::IsotropicDamageMaterial::linearElasticMaterial, M_PI, OOFEM_ERROR, OOFEM_WARNING, oofem::principal_strain, oofem::principal_stress, oofem::FloatArray::rotatedWith(), sk, softType, ST_BiLinear_Cohesive_Crack, ST_Disable_Damage, ST_Exponential_Cohesive_Crack, ST_Linear_Cohesive_Crack, ST_Trilinear_Cohesive_Crack, w_f, wf, wf_ID, wk, and oofem::FloatMatrix::zero().

Referenced by oofem::IsotropicGradientDamageMaterial::giveRealStressVectorGradientDamage().

initializeFrom()

void oofem::IsotropicDamageMaterial1::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::IsotropicDamageMaterial.

Reimplemented in oofem::IsotropicGradientDamageMaterial, oofem::MazarsMaterial, and oofem::MazarsNLMaterial.

Definition at line 86 of file idm1.C.

References _IFT_IsotropicDamageMaterial1_alphaps, _IFT_IsotropicDamageMaterial1_At, _IFT_IsotropicDamageMaterial1_Bt, _IFT_IsotropicDamageMaterial1_c1, _IFT_IsotropicDamageMaterial1_c2, _IFT_IsotropicDamageMaterial1_checkSnapBack, _IFT_IsotropicDamageMaterial1_damageLaw, _IFT_IsotropicDamageMaterial1_e0, _IFT_IsotropicDamageMaterial1_e1, _IFT_IsotropicDamageMaterial1_e2, _IFT_IsotropicDamageMaterial1_ecsm, _IFT_IsotropicDamageMaterial1_ef, _IFT_IsotropicDamageMaterial1_ek, _IFT_IsotropicDamageMaterial1_ep, _IFT_IsotropicDamageMaterial1_equivstraintype, _IFT_IsotropicDamageMaterial1_f_k, _IFT_IsotropicDamageMaterial1_f_r, _IFT_IsotropicDamageMaterial1_ft, _IFT_IsotropicDamageMaterial1_gf, _IFT_IsotropicDamageMaterial1_gft, _IFT_IsotropicDamageMaterial1_k, _IFT_IsotropicDamageMaterial1_md, _IFT_IsotropicDamageMaterial1_n, _IFT_IsotropicDamageMaterial1_nd, _IFT_IsotropicDamageMaterial1_sk, _IFT_IsotropicDamageMaterial1_skft, _IFT_IsotropicDamageMaterial1_w_f, _IFT_IsotropicDamageMaterial1_w_k, _IFT_IsotropicDamageMaterial1_w_r, _IFT_IsotropicDamageMaterial1_wf, _IFT_IsotropicDamageMaterial1_wk, _IFT_IsotropicDamageMaterial1_wkwf, _IFT_IsotropicLinearElasticMaterial_e, At, Bt, c1, c2, checkSnapBack, damageLaw, E, e0, e1, e2, oofem::ECSM_Oliver1, oofem::ECSM_Oliver1modified, oofem::ECSM_Projection, oofem::ECSM_ProjectionCentered, oofem::ECSM_SquareRootOfArea, ecsMethod, ef, ek, ep, equivStrainType, EST_ElasticEnergy, EST_ElasticEnergyPositiveStrain, EST_ElasticEnergyPositiveStress, EST_Griffith, EST_Mazars, EST_Mises, EST_Rankine_Smooth, EST_Rankine_Standard, f_k, f_r, ft, gf, gft, griff_n, oofem::InputRecord::hasField(), IR_GIVE_FIELD, IR_GIVE_OPTIONAL_FIELD, k, oofem::IsotropicDamageMaterial::linearElasticMaterial, mapper, md, nd, OOFEM_WARNING, oofem::IsotropicDamageMaterial::permStrain, ps_alpha, s1, sk, softType, ST_BiLinear_Cohesive_Crack, ST_Disable_Damage, ST_DoubleExponential, ST_Exponential, ST_Exponential_Cohesive_Crack, ST_Hordijk_Cohesive_Crack, ST_Linear, ST_Linear_Cohesive_Crack, ST_Mazars, ST_ModPowerExponential, ST_PowerExponential, ST_Smooth, ST_SmoothExtended, ST_Trilinear_Cohesive_Crack, w_f, w_k, w_r, wf, and wk.

Referenced by restoreContext().

isCharacteristicMtrxSymmetric()

bool oofem::IsotropicDamageMaterial1::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 344 of file idm1.h.

isCrackBandApproachUsed()

bool oofem::IsotropicDamageMaterial1::isCrackBandApproachUsed ( ) const

inline

Definition at line 271 of file idm1.h.

References ST_BiLinear_Cohesive_Crack, ST_Exponential_Cohesive_Crack, ST_Linear_Cohesive_Crack, and ST_Trilinear_Cohesive_Crack.

Referenced by computeDamageParam(), and initDamaged().

MMI_finish()

int oofem::IsotropicDamageMaterial1::MMI_finish ( TimeStep * tStep )

overridevirtual

Finishes the mapping for given time step. Used to perform cleanup. Typically some mappers require to compute some global mesh data related to current step, which are valid for example to all IPs - so they are computed only once for all IPs, stored and they need to be deallocated. These mappers are typically class variables, but their finish is invoked by all members.

Implements oofem::MaterialModelMapperInterface.

Definition at line 1485 of file idm1.C.

References mapper.

MMI_map()

int oofem::IsotropicDamageMaterial1::MMI_map ( GaussPoint * gp, Domain * oldd, TimeStep * tStep )

overridevirtual

Maps the required internal state variables from old mesh oldd to given ip. The result is stored in gp status.

Parameters

gp	Integration point belonging to new domain which values will be mapped
oldd	Old mesh reference.
tStep	Time step.

Returns

Nonzero if o.k.

Implements oofem::MaterialModelMapperInterface.

Definition at line 1403 of file idm1.C.

References oofem::FloatArray::at(), oofem::IntArray::at(), oofem::IntArray::followedBy(), oofem::Element::giveCrossSection(), oofem::Domain::giveElement(), oofem::CrossSection::giveMaterial(), oofem::GaussPoint::giveMaterialMode(), oofem::FEMComponent::giveNumber(), oofem::Domain::giveNumberOfElements(), oofem::StructuralMaterial::giveReducedSymVectorForm(), giveStatus(), oofem::StructuralMaterialStatus::letTempStrainVectorBe(), mapper, oofem::IsotropicDamageMaterialStatus::setTempDamage(), oofem::IsotropicDamageMaterialStatus::setTempKappa(), sourceElemSet, and oofem::IsotropicDamageMaterialStatus::updateYourself().

MMI_update()

int oofem::IsotropicDamageMaterial1::MMI_update ( GaussPoint * gp, TimeStep * tStep, FloatArray * elemGPVec = nullptr )

overridevirtual

Updates the required internal state variables from previously mapped values. The result is stored in gp status. This map and update splitting is necessary, for example for nonlocal models that local quantity to be averaged must be mapped in all integration points and then update can happen, because it may depend on nonlocal variable, which is computed from local values.

Parameters

gp	Integration point belonging to new domain which values will be mapped.
tStep	Time step.
elemGPVec	Vector passed to MMI_update at material level, probably computed from primary unknowns (for structural elements this represent strain vector).

Returns

Nonzero if o.k.

Implements oofem::MaterialModelMapperInterface.

Definition at line 1466 of file idm1.C.

References oofem::IsotropicDamageMaterial::giveRealStressVector(), giveStatus(), oofem::StructuralMaterialStatus::giveStrainVector(), and oofem::GaussPoint::updateYourself().

restoreContext()

void oofem::IsotropicDamageMaterial1::restoreContext ( DataStream & stream, ContextMode mode )

overridevirtual

Restores the receiver state previously written in stream.

See also

saveContext

Parameters

stream	Input stream.
mode	Determines amount of info available in stream (state, definition, ...).

Exceptions

throws

an ContextIOERR exception if error encountered.

Reimplemented from oofem::IsotropicDamageMaterial.

Definition at line 1372 of file idm1.C.

References oofem::CIO_IOERR, CM_Definition, initializeFrom(), oofem::DataStream::read(), and THROW_CIOERR.

saveContext()

void oofem::IsotropicDamageMaterial1::saveContext ( DataStream & stream, ContextMode mode )

overridevirtual

Stores receiver state to output stream.

Parameters

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

Exceptions

throws

an ContextIOERR exception if error encountered.

Reimplemented from oofem::IsotropicDamageMaterial.

Definition at line 1358 of file idm1.C.

References oofem::CIO_IOERR, CM_Definition, giveInputRecord(), oofem::DynamicInputRecord::giveRecordInTXTFormat(), THROW_CIOERR, and oofem::DataStream::write().

Member Data Documentation

At

double oofem::IsotropicDamageMaterial1::At = 0.

protected

Parameters used in Mazars damage law.

Definition at line 214 of file idm1.h.

Referenced by damageFunction(), damageFunctionPrime(), giveInputRecord(), and initializeFrom().

Bt

double oofem::IsotropicDamageMaterial1::Bt = 0.

protected

Definition at line 214 of file idm1.h.

Referenced by damageFunction(), damageFunctionPrime(), giveInputRecord(), and initializeFrom().

c1

double oofem::IsotropicDamageMaterial1::c1 = 3.

protected

Parameters used in Hordijk's softening law.

Definition at line 172 of file idm1.h.

Referenced by initializeFrom().

c2

double oofem::IsotropicDamageMaterial1::c2 = 6.93

protected

Definition at line 172 of file idm1.h.

Referenced by damageFunction(), and initializeFrom().

checkSnapBack

int oofem::IsotropicDamageMaterial1::checkSnapBack = 0

protected

Check possible snap back flag.

Definition at line 221 of file idm1.h.

Referenced by computeDamageParamForCohesiveCrack(), initDamaged(), and initializeFrom().

damageLaw

int oofem::IsotropicDamageMaterial1::damageLaw = 0

protected

Temporary parameter reading type of softening law, used in other isotropic damage material models.

Definition at line 203 of file idm1.h.

Referenced by giveInputRecord(), and initializeFrom().

e0

double oofem::IsotropicDamageMaterial1::e0 = 0.

protected

Equivalent strain at stress peak (or a similar parameter).

Definition at line 145 of file idm1.h.

Referenced by oofem::MazarsMaterial::computeDamageParam(), computeDamageParamForCohesiveCrack(), oofem::MazarsMaterial::computeGc(), oofem::MazarsMaterial::computeGt(), damageFunction(), damageFunctionPrime(), give(), giveInputRecord(), oofem::IDNLMaterial::giveLocalNonlocalStiffnessContribution(), initDamaged(), oofem::MazarsMaterial::initDamaged(), initializeFrom(), oofem::MazarsMaterial::initializeFrom(), and oofem::IDNLMaterial::NonlocalMaterialStiffnessInterface_showSparseMtrxStructure().

e1

double oofem::IsotropicDamageMaterial1::e1 = 0.

protected

Parameters used if softType = 7 (extended smooth damage law).

Definition at line 219 of file idm1.h.

Referenced by oofem::IDNLMaterial::computeAngleAndSigmaRatio(), damageFunction(), damageFunctionPrime(), giveInputRecord(), and initializeFrom().

e2

double oofem::IsotropicDamageMaterial1::e2 = 0.

protected

Definition at line 219 of file idm1.h.

Referenced by oofem::IDNLMaterial::computeAngleAndSigmaRatio(), damageFunction(), damageFunctionPrime(), giveInputRecord(), and initializeFrom().

ecsMethod

ElementCharSizeMethod oofem::IsotropicDamageMaterial1::ecsMethod = ECSM_Unknown

protected

Method used for evaluation of characteristic element size.

Definition at line 230 of file idm1.h.

Referenced by giveInputRecord(), initDamaged(), and initializeFrom().

ef

double oofem::IsotropicDamageMaterial1::ef = 0.

protected

Determines ductility -> corresponds to fracturing strain.

Definition at line 147 of file idm1.h.

Referenced by computeDamageParamForCohesiveCrack(), oofem::MazarsMaterial::computeGt(), damageFunction(), damageFunctionPrime(), give(), giveInputRecord(), oofem::IDNLMaterial::giveLocalNonlocalStiffnessContribution(), initDamaged(), initializeFrom(), and oofem::MazarsMaterial::initializeFrom().

ek

double oofem::IsotropicDamageMaterial1::ek = 0.

protected

Determines the softening for the bilinear law -> corresponds to the strain at the knee point.

Definition at line 163 of file idm1.h.

Referenced by computeDamageParamForCohesiveCrack(), give(), giveInputRecord(), and initializeFrom().

ep

double oofem::IsotropicDamageMaterial1::ep = 0.

protected

auxiliary input variablesfor softType == ST_SmoothExtended

Definition at line 224 of file idm1.h.

Referenced by giveInputRecord(), and initializeFrom().

equivStrainType

EquivStrainType oofem::IsotropicDamageMaterial1::equivStrainType = EST_Unknown

protected

Parameter specifying the definition of equivalent strain.

Definition at line 194 of file idm1.h.

Referenced by computeEquivalentStrain(), computeEta(), giveInputRecord(), oofem::IDNLMaterial::giveRemoteNonlocalStiffnessContribution(), initDamaged(), initializeFrom(), and oofem::MazarsMaterial::initializeFrom().

f_k

double oofem::IsotropicDamageMaterial1::f_k = 0.

protected

Definition at line 175 of file idm1.h.

Referenced by computeDamageParamForCohesiveCrack(), damageFunctionPrime(), giveInputRecord(), and initializeFrom().

f_r

double oofem::IsotropicDamageMaterial1::f_r = 0.

protected

Definition at line 175 of file idm1.h.

Referenced by computeDamageParamForCohesiveCrack(), damageFunctionPrime(), giveInputRecord(), and initializeFrom().

ft

double oofem::IsotropicDamageMaterial1::ft = 0.

protected

Definition at line 224 of file idm1.h.

Referenced by giveInputRecord(), and initializeFrom().

gf

double oofem::IsotropicDamageMaterial1::gf = 0.

protected

Determines the softening -> corresponds to the initial fracture energy. For a linear law, it is the area under the stress/strain curve. For an exponential law, it is the area bounded by the elastic range and a tangent to the softening part of the curve at the peak stress. For a bilinear law, gf corresponds to area bounded by elasticity and the first linear softening line projected to zero stress.

Definition at line 157 of file idm1.h.

Referenced by computeDamageParamForCohesiveCrack(), damageFunctionPrime(), give(), giveInputRecord(), initDamaged(), and initializeFrom().

gft

double oofem::IsotropicDamageMaterial1::gft = 0.

protected

Determines the softening for the bilinear law -> corresponds to the total fracture energy.

Definition at line 160 of file idm1.h.

Referenced by computeDamageParamForCohesiveCrack(), give(), giveInputRecord(), and initializeFrom().

griff_n

double oofem::IsotropicDamageMaterial1::griff_n = 8.

protected

Parameter used in Griffith's criterion.

Definition at line 200 of file idm1.h.

Referenced by computeEquivalentStrain(), and initializeFrom().

k

double oofem::IsotropicDamageMaterial1::k = 0.

protected

Parameter used in Mises definition of equivalent strain.

Definition at line 197 of file idm1.h.

Referenced by computeEquivalentStrain(), and initializeFrom().

mapper

MMAContainingElementProjection oofem::IsotropicDamageMaterial1::mapper

staticprotected

Mapper used to map internal variables in adaptivity.

Definition at line 241 of file idm1.h.

Referenced by giveInputRecord(), initializeFrom(), oofem::IsotropicGradientDamageMaterial::initializeFrom(), oofem::MazarsMaterial::initializeFrom(), MMI_finish(), and MMI_map().

md

double oofem::IsotropicDamageMaterial1::md = 1.

protected

Parameter used in "smooth damage law".

Definition at line 216 of file idm1.h.

Referenced by damageFunction(), damageFunctionPrime(), giveInputRecord(), and initializeFrom().

nd

double oofem::IsotropicDamageMaterial1::nd = 0.

protected

Definition at line 219 of file idm1.h.

Referenced by damageFunction(), damageFunctionPrime(), giveInputRecord(), and initializeFrom().

ps_alpha

double oofem::IsotropicDamageMaterial1::ps_alpha = 0.

protected

Parameters used by the model with permanent strain.

Definition at line 227 of file idm1.h.

Referenced by damageFunction(), evaluatePermanentStrain(), and initializeFrom().

ps_H

double oofem::IsotropicDamageMaterial1::ps_H = 0.

protected

Definition at line 227 of file idm1.h.

s1

double oofem::IsotropicDamageMaterial1::s1 = 0.

protected

Definition at line 219 of file idm1.h.

Referenced by oofem::IDNLMaterial::computeAngleAndSigmaRatio(), computeStrainInvariants(), damageFunction(), damageFunctionPrime(), and initializeFrom().

sk

double oofem::IsotropicDamageMaterial1::sk = 0.

protected

Determines the softening for the bilinear law -> corresponds to the stress at the knee point.

Definition at line 169 of file idm1.h.

Referenced by computeDamageParamForCohesiveCrack(), giveInputRecord(), initDamaged(), and initializeFrom().

softType

SofteningType oofem::IsotropicDamageMaterial1::softType = ST_Unknown

protected

Parameter specifying the type of softening (damage law).

Definition at line 211 of file idm1.h.

Referenced by computeDamageParam(), computeDamageParamForCohesiveCrack(), damageFunction(), damageFunctionPrime(), giveInputRecord(), initDamaged(), initializeFrom(), and oofem::MazarsMaterial::initializeFrom().

sourceElemSet

Set* oofem::IsotropicDamageMaterial1::sourceElemSet = nullptr

protected

Cached source element set used to map internal variables (adaptivity), created on demand.

Definition at line 233 of file idm1.h.

Referenced by MMI_map(), and ~IsotropicDamageMaterial1().

w_f

double oofem::IsotropicDamageMaterial1::w_f = 0.

protected

Definition at line 175 of file idm1.h.

Referenced by computeDamageParamForCohesiveCrack(), damageFunctionPrime(), giveInputRecord(), initDamaged(), and initializeFrom().

w_k

double oofem::IsotropicDamageMaterial1::w_k = 0.

protected

Parameters used in Trilinear_Cohesive_Crack softening law.

Definition at line 175 of file idm1.h.

Referenced by computeDamageParamForCohesiveCrack(), damageFunctionPrime(), giveInputRecord(), and initializeFrom().

w_r

double oofem::IsotropicDamageMaterial1::w_r = 0.

protected

Definition at line 175 of file idm1.h.

Referenced by computeDamageParamForCohesiveCrack(), damageFunctionPrime(), giveInputRecord(), and initializeFrom().

wf

double oofem::IsotropicDamageMaterial1::wf = 0.

protected

Determines ductility -> corresponds to crack opening in the cohesive crack model.

Definition at line 149 of file idm1.h.

Referenced by computeDamageParamForCohesiveCrack(), damageFunctionPrime(), give(), giveInputRecord(), initDamaged(), and initializeFrom().

wk

double oofem::IsotropicDamageMaterial1::wk = 0.

protected

Determines the softening for the bilinear law -> corresponds to the crack opening at the knee point.

Definition at line 166 of file idm1.h.

Referenced by computeDamageParamForCohesiveCrack(), giveInputRecord(), initDamaged(), and initializeFrom().

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

• idm1.h
• idm1.C