OOFEM 3.0
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oofem::IsoInterfaceDamageMaterial Class Reference

#include <isointerfacedamage01.h>

Inheritance diagram for oofem::IsoInterfaceDamageMaterial:
Collaboration diagram for oofem::IsoInterfaceDamageMaterial:

Public Member Functions

 IsoInterfaceDamageMaterial (int n, Domain *d)
 Constructor.
bool hasAnalyticalTangentStiffness () const override
const char * giveInputRecordName () const override
const char * giveClassName () const override
FloatArrayF< 3 > giveEngTraction_3d (const FloatArrayF< 3 > &jump, GaussPoint *gp, TimeStep *tStep) const override
FloatMatrixF< 3, 3 > give3dStiffnessMatrix_Eng (MatResponseMode rMode, GaussPoint *gp, TimeStep *tStep) const override
int giveIPValue (FloatArray &answer, GaussPoint *gp, InternalStateType type, TimeStep *tStep) override
double computeEquivalentStrain (const FloatArrayF< 3 > &jump, GaussPoint *gp, TimeStep *tStep) const
virtual double computeDamageParam (double kappa, const FloatArrayF< 3 > &strain, GaussPoint *gp) const
void initializeFrom (InputRecord &ir) override
void giveInputRecord (DynamicInputRecord &input) override
std::unique_ptr< MaterialStatusCreateStatus (GaussPoint *gp) const override
Public Member Functions inherited from oofem::StructuralInterfaceMaterial
 StructuralInterfaceMaterial (int n, Domain *d)
virtual double giveFirstPKTraction_1d (double jump, double reducedF, GaussPoint *gp, TimeStep *tStep) const
virtual FloatArrayF< 2 > giveFirstPKTraction_2d (const FloatArrayF< 2 > &jump, const FloatMatrixF< 2, 2 > &reducedF, GaussPoint *gp, TimeStep *tStep) const
virtual FloatArrayF< 3 > giveFirstPKTraction_3d (const FloatArrayF< 3 > &jump, const FloatMatrixF< 3, 3 > &F, GaussPoint *gp, TimeStep *tStep) const
virtual double giveEngTraction_1d (double jump, GaussPoint *gp, TimeStep *tStep) const
virtual FloatArrayF< 2 > giveEngTraction_2d (const FloatArrayF< 2 > &jump, GaussPoint *gp, TimeStep *tStep) const
virtual FloatMatrixF< 1, 1 > give1dStiffnessMatrix_dTdj (MatResponseMode rMode, GaussPoint *gp, TimeStep *tStep) const
virtual FloatMatrixF< 2, 2 > give2dStiffnessMatrix_dTdj (MatResponseMode rMode, GaussPoint *gp, TimeStep *tStep) const
virtual FloatMatrixF< 3, 3 > give3dStiffnessMatrix_dTdj (MatResponseMode rMode, GaussPoint *gp, TimeStep *tStep) const
virtual FloatMatrixF< 1, 1 > give1dStiffnessMatrix_Eng (MatResponseMode rMode, GaussPoint *gp, TimeStep *tStep) const
virtual FloatMatrixF< 2, 2 > give2dStiffnessMatrix_Eng (MatResponseMode rMode, GaussPoint *gp, TimeStep *tStep) const
FloatMatrixF< 1, 1 > give1dStiffnessMatrix_dTdj_Num (GaussPoint *gp, TimeStep *tStep) const
FloatMatrixF< 2, 2 > give2dStiffnessMatrix_dTdj_Num (GaussPoint *gp, TimeStep *tStep) const
FloatMatrixF< 3, 3 > give3dStiffnessMatrix_dTdj_Num (GaussPoint *gp, TimeStep *tStep) const
FloatMatrixF< 1, 1 > give1dStiffnessMatrix_Eng_Num (GaussPoint *gp, TimeStep *tStep) const
FloatMatrixF< 2, 2 > give2dStiffnessMatrix_Eng_Num (GaussPoint *gp, TimeStep *tStep) const
FloatMatrixF< 3, 3 > give3dStiffnessMatrix_Eng_Num (GaussPoint *gp, TimeStep *tStep) const
void initializeFrom (InputRecord &ir) override
void giveInputRecord (DynamicInputRecord &input) override
virtual FloatArray giveInterfaceStrength ()
int giveIPValue (FloatArray &answer, GaussPoint *gp, InternalStateType type, TimeStep *tStep) override
Public Member Functions inherited from oofem::Material
 Material (int n, Domain *d)
virtual ~Material ()=default
 Destructor.
virtual bool isCharacteristicMtrxSymmetric (MatResponseMode rMode) const
virtual void giveCharacteristicMatrix (FloatMatrix &answer, MatResponseMode type, GaussPoint *gp, TimeStep *tStep) const
 Returns characteristic matrix of the receiver.
virtual void giveCharacteristicVector (FloatArray &answer, FloatArray &flux, MatResponseMode type, GaussPoint *gp, TimeStep *tStep) const
 Returns characteristic vector of the receiver.
virtual double giveCharacteristicValue (MatResponseMode type, GaussPoint *gp, TimeStep *tStep) const
 Returns characteristic value of the receiver.
virtual double give (int aProperty, GaussPoint *gp) const
virtual bool hasProperty (int aProperty, GaussPoint *gp) const
virtual void modifyProperty (int aProperty, double value, GaussPoint *gp)
double giveCastingTime () const
virtual bool isActivated (TimeStep *tStep) const
virtual bool hasMaterialModeCapability (MaterialMode mode) const
virtual bool hasCastingTimeSupport () const
virtual int setIPValue (const FloatArray &value, GaussPoint *gp, InternalStateType type)
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 MaterialStatusgiveStatus (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.
DomaingiveDomain () 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 InterfacegiveInterface (InterfaceType t)
std::string errorInfo (const char *func) const
 Returns string for prepending output (used by error reporting macros).

Protected Attributes

double tempDillatCoeff = 0.
 Coefficient of thermal dilatation.
double kn = 0.
 Elastic properties (normal moduli).
double ks = 0.
 Shear moduli.
double ft = 0.
 Tension strength.
double gf = 0.
 Fracture energy.
double e0 = 0.
 Limit elastic deformation.
double maxOmega = 0.999999
 Maximum limit on omega. The purpose is elimination of a too compliant material which may cause convergency problems. Set to something like 0.99 if needed.
double beta = 0.
 Weight factor for the influence of shear component of displacement jump on equivalent strain.
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.
Domaindomain
 Link to domain object, useful for communicating with other FEM components.

Additional Inherited Members

Public Attributes inherited from oofem::StructuralInterfaceMaterial
bool useNumericalTangent

Detailed Description

Simple isotropic damage based model for 2d interface elements. In 2d, the interface elements are used to model contact layer between element edges. The generalized strain vector contains two relative displacements (in normal and shear direction). The generalized stress vector contains corresponding tractions in normal and tangent direction.

The behaviour of the model is elastic, described by normal and shear stiffness components. Isotropic damage is initiated when the stress reaches the tensile strength. Damage evolution is governed by normal component of generalized strain vector (normal relative displacement) by an exponential softening law.

Definition at line 110 of file isointerfacedamage01.h.

Constructor & Destructor Documentation

◆ IsoInterfaceDamageMaterial()

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

Member Function Documentation

◆ computeDamageParam()

double oofem::IsoInterfaceDamageMaterial::computeDamageParam ( double kappa,
const FloatArrayF< 3 > & strain,
GaussPoint * gp ) const
virtual

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

Parameters
kappaEquivalent strain measure.
strainTotal strain vector in full form. (unnecessary?)
gpIntegration point.
Returns
omega.

Definition at line 208 of file isointerfacedamage01.C.

References e0, ft, and gf.

Referenced by giveEngTraction_3d().

◆ computeEquivalentStrain()

double oofem::IsoInterfaceDamageMaterial::computeEquivalentStrain ( const FloatArrayF< 3 > & jump,
GaussPoint * gp,
TimeStep * tStep ) const

◆ CreateStatus()

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

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

Parameters
gpIntegration point where newly created status will be stored.
Returns
Reference to new status.

Reimplemented from oofem::Material.

Definition at line 158 of file isointerfacedamage01.h.

◆ give3dStiffnessMatrix_Eng()

◆ giveClassName()

const char * oofem::IsoInterfaceDamageMaterial::giveClassName ( ) const
inlineoverridevirtual
Returns
Class name of the receiver.

Implements oofem::FEMComponent.

Definition at line 137 of file isointerfacedamage01.h.

◆ giveEngTraction_3d()

◆ giveInputRecord()

void oofem::IsoInterfaceDamageMaterial::giveInputRecord ( DynamicInputRecord & input)
overridevirtual

Setups the input record string of receiver.

Parameters
inputDynamic input record to be filled by receiver.

Reimplemented from oofem::FEMComponent.

Definition at line 182 of file isointerfacedamage01.C.

References _IFT_IsoInterfaceDamageMaterial_ft, _IFT_IsoInterfaceDamageMaterial_gf, _IFT_IsoInterfaceDamageMaterial_kn, _IFT_IsoInterfaceDamageMaterial_ks, _IFT_IsoInterfaceDamageMaterial_maxOmega, ft, gf, kn, ks, maxOmega, and oofem::DynamicInputRecord::setField().

◆ giveInputRecordName()

const char * oofem::IsoInterfaceDamageMaterial::giveInputRecordName ( ) const
inlineoverridevirtual
Returns
Input record name of the receiver.

Implements oofem::FEMComponent.

Definition at line 136 of file isointerfacedamage01.h.

References _IFT_IsoInterfaceDamageMaterial_Name.

◆ giveIPValue()

int oofem::IsoInterfaceDamageMaterial::giveIPValue ( FloatArray & answer,
GaussPoint * gp,
InternalStateType type,
TimeStep * tStep )
overridevirtual

Returns the integration point corresponding value in Reduced form.

Parameters
answerContain corresponding ip value, zero sized if not available.
gpIntegration point to which the value refers.
typeDetermines the type of internal variable.
tStepDetermines 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 128 of file isointerfacedamage01.C.

References oofem::FloatArray::at(), oofem::IsoInterfaceDamageMaterialStatus::giveDamage(), oofem::IsoInterfaceDamageMaterialStatus::giveKappa(), oofem::Material::giveStatus(), oofem::IsoInterfaceDamageMaterialStatus::giveTempDamage(), oofem::FloatArray::resize(), and oofem::FloatArray::zero().

◆ hasAnalyticalTangentStiffness()

bool oofem::IsoInterfaceDamageMaterial::hasAnalyticalTangentStiffness ( ) const
inlineoverridevirtual

Tells if the model has implemented analytical tangent stiffness. If not, the tangent must be computed numerically.

Implements oofem::StructuralInterfaceMaterial.

Definition at line 134 of file isointerfacedamage01.h.

◆ initializeFrom()

void oofem::IsoInterfaceDamageMaterial::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
irInput record to initialize from.
priorityPriority of the input record. This is used to determine the order of initialization

Reimplemented from oofem::FEMComponent.

Definition at line 160 of file isointerfacedamage01.C.

References _IFT_IsoInterfaceDamageMaterial_beta, _IFT_IsoInterfaceDamageMaterial_ft, _IFT_IsoInterfaceDamageMaterial_gf, _IFT_IsoInterfaceDamageMaterial_kn, _IFT_IsoInterfaceDamageMaterial_ks, _IFT_IsoInterfaceDamageMaterial_maxOmega, beta, e0, ft, gf, IR_GIVE_FIELD, IR_GIVE_OPTIONAL_FIELD, kn, ks, oofem::max(), maxOmega, and oofem::min().

Member Data Documentation

◆ beta

double oofem::IsoInterfaceDamageMaterial::beta = 0.
protected

Weight factor for the influence of shear component of displacement jump on equivalent strain.

Definition at line 128 of file isointerfacedamage01.h.

Referenced by computeEquivalentStrain(), and initializeFrom().

◆ e0

double oofem::IsoInterfaceDamageMaterial::e0 = 0.
protected

Limit elastic deformation.

Definition at line 124 of file isointerfacedamage01.h.

Referenced by computeDamageParam(), give3dStiffnessMatrix_Eng(), and initializeFrom().

◆ ft

double oofem::IsoInterfaceDamageMaterial::ft = 0.
protected

Tension strength.

Definition at line 120 of file isointerfacedamage01.h.

Referenced by computeDamageParam(), give3dStiffnessMatrix_Eng(), giveInputRecord(), and initializeFrom().

◆ gf

double oofem::IsoInterfaceDamageMaterial::gf = 0.
protected

Fracture energy.

Definition at line 122 of file isointerfacedamage01.h.

Referenced by computeDamageParam(), give3dStiffnessMatrix_Eng(), giveInputRecord(), and initializeFrom().

◆ kn

double oofem::IsoInterfaceDamageMaterial::kn = 0.
protected

Elastic properties (normal moduli).

Definition at line 116 of file isointerfacedamage01.h.

Referenced by give3dStiffnessMatrix_Eng(), giveInputRecord(), and initializeFrom().

◆ ks

double oofem::IsoInterfaceDamageMaterial::ks = 0.
protected

Shear moduli.

Definition at line 118 of file isointerfacedamage01.h.

Referenced by give3dStiffnessMatrix_Eng(), giveInputRecord(), and initializeFrom().

◆ maxOmega

double oofem::IsoInterfaceDamageMaterial::maxOmega = 0.999999
protected

Maximum limit on omega. The purpose is elimination of a too compliant material which may cause convergency problems. Set to something like 0.99 if needed.

Definition at line 126 of file isointerfacedamage01.h.

Referenced by give3dStiffnessMatrix_Eng(), giveInputRecord(), and initializeFrom().

◆ tempDillatCoeff

double oofem::IsoInterfaceDamageMaterial::tempDillatCoeff = 0.
protected

Coefficient of thermal dilatation.

Definition at line 114 of file isointerfacedamage01.h.


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

This page is part of the OOFEM-3.0 documentation. Copyright Copyright (C) 1994-2025 Borek Patzak Bořek Patzák
Project e-mail: oofem@fsv.cvut.cz
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