OOFEM  2.4
OOFEM.org - Object Oriented Finite Element Solver
oofem::IDGMaterial Class Reference

Gradient-enhanced Isotropic Damage model for concrete in tension,. More...

#include <idmgrad1.h>

+ Inheritance diagram for oofem::IDGMaterial:
+ Collaboration diagram for oofem::IDGMaterial:

Public Member Functions

 IDGMaterial (int n, Domain *d)
 Constructor. More...
 
virtual ~IDGMaterial ()
 Destructor. More...
 
virtual MaterialStatusCreateStatus (GaussPoint *gp) const
 Creates new copy of associated status and inserts it into given integration point. More...
 
virtual const char * giveClassName () const
 
virtual const char * giveInputRecordName () const
 
virtual IRResultType initializeFrom (InputRecord *ir)
 Initializes receiver according to object description stored in input record. More...
 
virtual InterfacegiveInterface (InterfaceType t)
 Interface requesting service. More...
 
virtual int hasMaterialModeCapability (MaterialMode mode)
 Tests if material supports material mode. More...
 
virtual void givePDGradMatrix_uu (FloatMatrix &answer, MatResponseMode mode, GaussPoint *gp, TimeStep *tStep)
 Left upper block. More...
 
virtual void givePDGradMatrix_ku (FloatMatrix &answer, MatResponseMode mode, GaussPoint *gp, TimeStep *tStep)
 Left lower block. More...
 
virtual void givePDGradMatrix_uk (FloatMatrix &answer, MatResponseMode mode, GaussPoint *gp, TimeStep *tStep)
 Right upper block. More...
 
virtual void givePDGradMatrix_kk (FloatMatrix &answer, MatResponseMode mode, GaussPoint *gp, TimeStep *tStep)
 Right lower block. More...
 
virtual void givePDGradMatrix_LD (FloatMatrix &answer, MatResponseMode mode, GaussPoint *gp, TimeStep *tStep)
 Stress-based averaging. More...
 
virtual void giveRealStressVectorGrad (FloatArray &answer1, double &answer2, GaussPoint *gp, const FloatArray &totalStrain, double nonlocalCumulatedStrain, TimeStep *tStep)
 gradient - based giveRealStressVector More...
 
void giveStiffnessMatrix (FloatMatrix &answer, MatResponseMode rMode, GaussPoint *gp, TimeStep *tStep)
 Computes the stiffness matrix for giveRealStressVector of receiver in given integration point, respecting its history. More...
 
virtual void give1dStressStiffMtrx (FloatMatrix &answer, MatResponseMode, GaussPoint *gp, TimeStep *tStep)
 Method for computing 1d stiffness matrix of receiver. More...
 
void give1dKappaMatrix (FloatMatrix &answer, MatResponseMode mode, GaussPoint *gp, TimeStep *tStep)
 
void give1dGprime (FloatMatrix &answer, MatResponseMode mode, GaussPoint *gp, TimeStep *tStep)
 
void givePlaneStressStiffMtrx (FloatMatrix &answer, MatResponseMode mode, GaussPoint *gp, TimeStep *tStep)
 Method for computing plane stress stiffness matrix of receiver. More...
 
void givePlaneStressKappaMatrix (FloatMatrix &answer, MatResponseMode mode, GaussPoint *gp, TimeStep *tStep)
 
void givePlaneStressGprime (FloatMatrix &answer, MatResponseMode mode, GaussPoint *gp, TimeStep *tStep)
 
void givePlaneStrainStiffMtrx (FloatMatrix &answer, MatResponseMode mode, GaussPoint *gp, TimeStep *tStep)
 Method for computing plane strain stiffness matrix of receiver. More...
 
void givePlaneStrainKappaMatrix (FloatMatrix &answer, MatResponseMode mode, GaussPoint *gp, TimeStep *tStep)
 
void givePlaneStrainGprime (FloatMatrix &answer, MatResponseMode mode, GaussPoint *gp, TimeStep *tStep)
 
void giveInternalLength (FloatMatrix &answer, MatResponseMode mode, GaussPoint *gp, TimeStep *tStep)
 
void giveInternalLengthDerivative (FloatMatrix &answer, MatResponseMode mode, GaussPoint *gp, TimeStep *tStep)
 
- Public Member Functions inherited from oofem::IsotropicDamageMaterial1
 IsotropicDamageMaterial1 (int n, Domain *d)
 Constructor. More...
 
virtual ~IsotropicDamageMaterial1 ()
 Destructor. More...
 
virtual void giveInputRecord (DynamicInputRecord &input)
 Setups the input record string of receiver. More...
 
bool isCrackBandApproachUsed ()
 
virtual void computeEquivalentStrain (double &kappa, const FloatArray &strain, GaussPoint *gp, TimeStep *tStep)
 Computes the equivalent strain measure from given strain vector (full form). More...
 
virtual void computeEta (FloatArray &answer, const FloatArray &strain, GaussPoint *gp, TimeStep *tStep)
 Computes derivative of the equivalent strain with regards to strain. More...
 
virtual void computeDamageParam (double &omega, double kappa, const FloatArray &strain, GaussPoint *gp)
 Computes the value of damage parameter omega, based on given value of equivalent strain. More...
 
void computeDamageParamForCohesiveCrack (double &omega, double kappa, GaussPoint *gp)
 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) More...
 
double damageFunction (double kappa, GaussPoint *gp)
 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). More...
 
double damageFunctionPrime (double kappa, GaussPoint *gp)
 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). More...
 
double complianceFunction (double kappa, GaussPoint *gp)
 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). More...
 
double evaluatePermanentStrain (double kappa, double omega)
 
virtual int MMI_map (GaussPoint *gp, Domain *oldd, TimeStep *tStep)
 Maps the required internal state variables from old mesh oldd to given ip. More...
 
virtual int MMI_update (GaussPoint *gp, TimeStep *tStep, FloatArray *estrain=NULL)
 Updates the required internal state variables from previously mapped values. More...
 
virtual int MMI_finish (TimeStep *tStep)
 Finishes the mapping for given time step. More...
 
virtual MaterialStatusgiveStatus (GaussPoint *gp) const
 Returns material status of receiver in given integration point. More...
 
virtual double give (int aProperty, GaussPoint *gp)
 Returns the value of material property 'aProperty'. More...
 
virtual bool isCharacteristicMtrxSymmetric (MatResponseMode rMode)
 Returns true if stiffness matrix of receiver is symmetric Default implementation returns true. More...
 
- Public Member Functions inherited from oofem::IsotropicDamageMaterial
 IsotropicDamageMaterial (int n, Domain *d)
 Constructor. More...
 
virtual ~IsotropicDamageMaterial ()
 Destructor. More...
 
virtual int hasNonLinearBehaviour ()
 Returns nonzero if receiver is non linear. More...
 
LinearElasticMaterialgiveLinearElasticMaterial ()
 Returns reference to undamaged (bulk) material. More...
 
virtual void give3dMaterialStiffnessMatrix (FloatMatrix &answer, MatResponseMode mode, GaussPoint *gp, TimeStep *tStep)
 Computes full 3d material stiffness matrix at given integration point, time, respecting load history in integration point. More...
 
virtual void giveRealStressVector (FloatArray &answer, GaussPoint *gp, const FloatArray &reducedStrain, TimeStep *tStep)
 Computes the real stress vector for given total strain and integration point. More...
 
virtual void giveRealStressVector_3d (FloatArray &answer, GaussPoint *gp, const FloatArray &reducedE, TimeStep *tStep)
 Default implementation relies on giveRealStressVector for second Piola-Kirchoff stress. More...
 
virtual void giveRealStressVector_PlaneStrain (FloatArray &answer, GaussPoint *gp, const FloatArray &reducedE, TimeStep *tStep)
 Default implementation relies on giveRealStressVector_3d. More...
 
virtual void giveRealStressVector_StressControl (FloatArray &answer, GaussPoint *gp, const FloatArray &reducedE, const IntArray &strainControl, TimeStep *tStep)
 Iteratively calls giveRealStressVector_3d to find the stress controlled equal to zero· More...
 
virtual void giveRealStressVector_PlaneStress (FloatArray &answer, GaussPoint *gp, const FloatArray &reducedE, TimeStep *tStep)
 Default implementation relies on giveRealStressVector_StressControl. More...
 
virtual void giveRealStressVector_1d (FloatArray &answer, GaussPoint *gp, const FloatArray &reducedE, TimeStep *tStep)
 Default implementation relies on giveRealStressVector_StressControl. More...
 
virtual int giveIPValue (FloatArray &answer, GaussPoint *gp, InternalStateType type, TimeStep *tStep)
 Returns the integration point corresponding value in Reduced form. More...
 
virtual void giveThermalDilatationVector (FloatArray &answer, GaussPoint *, TimeStep *)
 Returns a vector of coefficients of thermal dilatation in direction of each material principal (local) axis. More...
 
MaterialStatusCreateStatus (GaussPoint *gp) const
 Creates new copy of associated status and inserts it into given integration point. More...
 
- Public Member Functions inherited from oofem::StructuralMaterial
 StructuralMaterial (int n, Domain *d)
 Constructor. More...
 
virtual ~StructuralMaterial ()
 Destructor. More...
 
virtual void giveRealStressVector_ShellStressControl (FloatArray &answer, GaussPoint *gp, const FloatArray &reducedE, const IntArray &strainControl, TimeStep *tStep)
 
virtual void giveRealStressVector_Warping (FloatArray &answer, GaussPoint *gp, const FloatArray &reducedE, TimeStep *tStep)
 Default implementation relies on giveRealStressVector_StressControl. More...
 
virtual void giveRealStressVector_2dBeamLayer (FloatArray &answer, GaussPoint *gp, const FloatArray &reducedE, TimeStep *tStep)
 Default implementation relies on giveRealStressVector_StressControl. More...
 
virtual void giveRealStressVector_PlateLayer (FloatArray &answer, GaussPoint *gp, const FloatArray &reducedE, TimeStep *tStep)
 Default implementation relies on giveRealStressVector_StressControl. More...
 
virtual void giveRealStressVector_Fiber (FloatArray &answer, GaussPoint *gp, const FloatArray &reducedE, TimeStep *tStep)
 Default implementation relies on giveRealStressVector_StressControl. More...
 
virtual void giveRealStressVector_Lattice2d (FloatArray &answer, GaussPoint *gp, const FloatArray &reducedE, TimeStep *tStep)
 
virtual void giveRealStressVector_Lattice3d (FloatArray &answer, GaussPoint *gp, const FloatArray &reducedE, TimeStep *tStep)
 
virtual void giveRealStressVector_2dPlateSubSoil (FloatArray &answer, GaussPoint *gp, const FloatArray &reducedE, TimeStep *tStep)
 Default implementation is not provided. More...
 
virtual void giveRealStressVector_3dBeamSubSoil (FloatArray &answer, GaussPoint *gp, const FloatArray &reducedE, TimeStep *tStep)
 
virtual void giveEshelbyStressVector_PlaneStrain (FloatArray &answer, GaussPoint *gp, const FloatArray &reducedF, TimeStep *tStep)
 Prototype for computation of Eshelby stress. More...
 
void give_dPdF_from (const FloatMatrix &dSdE, FloatMatrix &answer, GaussPoint *gp)
 
void convert_dSdE_2_dPdF (FloatMatrix &answer, const FloatMatrix &dSdE, const FloatArray &S, const FloatArray &F, MaterialMode matMode)
 
double giveReferenceTemperature ()
 Returns the reference temperature of receiver. More...
 
virtual void computeStressIndependentStrainVector (FloatArray &answer, GaussPoint *gp, TimeStep *tStep, ValueModeType mode)
 Computes reduced strain vector in given integration point, generated by internal processes in material, which are independent on loading in particular integration point. More...
 
virtual void computeStressIndependentStrainVector_3d (FloatArray &answer, GaussPoint *gp, TimeStep *tStep, ValueModeType mode)
 
virtual void give3dMaterialStiffnessMatrix_dPdF (FloatMatrix &answer, MatResponseMode mode, GaussPoint *gp, TimeStep *tStep)
 
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)
 Method for subtracting from reduced space strain vector its stress-independent parts (caused by temperature, shrinkage, creep and possibly by other phenomena). More...
 
void giveStressDependentPartOfStrainVector_3d (FloatArray &answer, GaussPoint *gp, const FloatArray &reducedStrainVector, TimeStep *tStep, ValueModeType mode)
 
virtual int setIPValue (const FloatArray &value, GaussPoint *gp, InternalStateType type)
 Sets the value of a certain variable at a given integration point to the given value. More...
 
virtual void give2dBeamLayerStiffMtrx (FloatMatrix &answer, MatResponseMode mmode, GaussPoint *gp, TimeStep *tStep)
 Method for computing 2d beam layer stiffness matrix of receiver. More...
 
virtual void givePlateLayerStiffMtrx (FloatMatrix &answer, MatResponseMode mmode, GaussPoint *gp, TimeStep *tStep)
 Method for computing 2d plate layer stiffness matrix of receiver. More...
 
virtual void giveFiberStiffMtrx (FloatMatrix &answer, MatResponseMode mmode, GaussPoint *gp, TimeStep *tStep)
 Method for computing 1d fiber stiffness matrix of receiver. More...
 
virtual void give2dLatticeStiffMtrx (FloatMatrix &answer, MatResponseMode mmode, GaussPoint *gp, TimeStep *tStep)
 Method for computing 2d lattice stiffness matrix of receiver. More...
 
virtual void give3dLatticeStiffMtrx (FloatMatrix &answer, MatResponseMode mmode, GaussPoint *gp, TimeStep *tStep)
 Method for computing 3d lattice stiffness matrix of receiver. More...
 
virtual void give2dPlateSubSoilStiffMtrx (FloatMatrix &answer, MatResponseMode mmode, GaussPoint *gp, TimeStep *tStep)
 Method for computing stiffness matrix of plate subsoil model. More...
 
virtual void give3dBeamSubSoilStiffMtrx (FloatMatrix &answer, MatResponseMode mmode, GaussPoint *gp, TimeStep *tStep)
 Method for computing stiffness matrix of beam3d subsoil model. More...
 
virtual void giveFirstPKStressVector_3d (FloatArray &answer, GaussPoint *gp, const FloatArray &reducedF, TimeStep *tStep)
 Default implementation relies on giveRealStressVector for second Piola-Kirchoff stress. More...
 
virtual void giveFirstPKStressVector_PlaneStrain (FloatArray &answer, GaussPoint *gp, const FloatArray &reducedF, TimeStep *tStep)
 Default implementation relies on giveFirstPKStressVector_3d. More...
 
virtual void giveFirstPKStressVector_PlaneStress (FloatArray &answer, GaussPoint *gp, const FloatArray &reducedF, TimeStep *tStep)
 Default implementation relies on giveFirstPKStressVector_3d. More...
 
virtual void giveFirstPKStressVector_1d (FloatArray &answer, GaussPoint *gp, const FloatArray &reducedF, TimeStep *tStep)
 Default implementation relies on giveFirstPKStressVector_3d. More...
 
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 givePlaneStressStiffMtrx_dPdF (FloatMatrix &answer, MatResponseMode mmode, GaussPoint *gp, TimeStep *tStep)
 
virtual void givePlaneStressStiffMtrx_dCde (FloatMatrix &answer, MatResponseMode mmode, GaussPoint *gp, TimeStep *tStep)
 
virtual void givePlaneStrainStiffMtrx_dPdF (FloatMatrix &answer, MatResponseMode mmode, GaussPoint *gp, TimeStep *tStep)
 
virtual void givePlaneStrainStiffMtrx_dCde (FloatMatrix &answer, MatResponseMode mmode, GaussPoint *gp, TimeStep *tStep)
 
virtual void give1dStressStiffMtrx_dPdF (FloatMatrix &answer, MatResponseMode mmode, GaussPoint *gp, TimeStep *tStep)
 
virtual void give1dStressStiffMtrx_dCde (FloatMatrix &answer, MatResponseMode mmode, GaussPoint *gp, TimeStep *tStep)
 
- Public Member Functions inherited from oofem::Material
 Material (int n, Domain *d)
 Constructor. More...
 
virtual ~Material ()
 Destructor. More...
 
virtual bool hasProperty (int aProperty, GaussPoint *gp)
 Returns true if 'aProperty' exists on material. More...
 
virtual void modifyProperty (int aProperty, double value, GaussPoint *gp)
 Modify 'aProperty', which already exists on material. More...
 
double giveCastingTime ()
 
virtual bool isActivated (TimeStep *tStep)
 
virtual int hasCastingTimeSupport ()
 Tests if material supports casting time. More...
 
virtual void printYourself ()
 Prints receiver state on stdout. Useful for debugging. More...
 
virtual contextIOResultType saveIPContext (DataStream &stream, ContextMode mode, GaussPoint *gp)
 Stores integration point state to output stream. More...
 
virtual contextIOResultType restoreIPContext (DataStream &stream, ContextMode mode, GaussPoint *gp)
 Reads integration point state to output stream. More...
 
virtual int checkConsistency ()
 Allows programmer to test some internal data, before computation begins. More...
 
virtual int initMaterial (Element *element)
 Optional function to call specific procedures when initializing a material. More...
 
virtual int packUnknowns (DataStream &buff, TimeStep *tStep, GaussPoint *ip)
 Pack all necessary data of integration point (according to element parallel_mode) into given communication buffer. More...
 
virtual int unpackAndUpdateUnknowns (DataStream &buff, TimeStep *tStep, GaussPoint *ip)
 Unpack and updates all necessary data of given integration point (according to element parallel_mode) into given communication buffer. More...
 
virtual int estimatePackSize (DataStream &buff, GaussPoint *ip)
 Estimates the necessary pack size to hold all packed data of receiver. More...
 
virtual double predictRelativeComputationalCost (GaussPoint *gp)
 Returns the weight representing relative computational cost of receiver The reference material model is linear isotropic material - its weight is set to 1.0 The other material models should compare to this reference model. More...
 
virtual double predictRelativeRedistributionCost (GaussPoint *gp)
 Returns the relative redistribution cost of the receiver. More...
 
virtual void initTempStatus (GaussPoint *gp)
 Initializes temporary variables stored in integration point status at the beginning of new time step. More...
 
- Public Member Functions inherited from oofem::FEMComponent
 FEMComponent (int n, Domain *d)
 Regular constructor, creates component with given number and belonging to given domain. More...
 
virtual ~FEMComponent ()
 Virtual destructor. More...
 
DomaingiveDomain () const
 
virtual void setDomain (Domain *d)
 Sets associated Domain. More...
 
int giveNumber () const
 
void setNumber (int num)
 Sets number of receiver. More...
 
virtual void updateLocalNumbering (EntityRenumberingFunctor &f)
 Local renumbering support. More...
 
virtual contextIOResultType saveContext (DataStream &stream, ContextMode mode, void *obj=NULL)
 Stores receiver state to output stream. More...
 
virtual contextIOResultType restoreContext (DataStream &stream, ContextMode mode, void *obj=NULL)
 Restores the receiver state previously written in stream. More...
 
virtual void printOutputAt (FILE *file, TimeStep *tStep)
 Prints output of receiver to stream, for given time step. More...
 
std::string errorInfo (const char *func) const
 Returns string for prepending output (used by error reporting macros). More...
 
- Public Member Functions inherited from oofem::RandomMaterialExtensionInterface
 RandomMaterialExtensionInterface ()
 Constructor. More...
 
virtual ~RandomMaterialExtensionInterface ()
 Destructor. More...
 
IRResultType initializeFrom (InputRecord *ir)
 Initializes receiver according to object description stored in input record. More...
 
void giveInputRecord (DynamicInputRecord &ir)
 
bool give (int key, GaussPoint *gp, double &value)
 Returns the property in associated status of given integration point if defined. More...
 
- Public Member Functions inherited from oofem::Interface
 Interface ()
 Constructor. More...
 
virtual ~Interface ()
 
- Public Member Functions inherited from oofem::MaterialModelMapperInterface
 MaterialModelMapperInterface ()
 Constructor. More...
 
virtual ~MaterialModelMapperInterface ()
 Destructor. More...
 

Protected Attributes

double internalLength
 Length scale parameter. More...
 
int averType
 Parameter specifiying averaging type(0 - classical, 1 - distance based, 2 - stress based) More...
 
double beta
 Parameters specifying how the length scale parameter l is adjusted. More...
 
double t
 
- Protected Attributes inherited from oofem::IsotropicDamageMaterial1
double e0
 Equivalent strain at stress peak (or a similar parameter). More...
 
double ef
 Determines ductility -> corresponds to fracturing strain. More...
 
double wf
 Determines ductility -> corresponds to crack opening in the cohesive crack model. More...
 
double gf
 Determines the softening -> corresponds to the initial fracture energy. More...
 
double gft
 Determines the softening for the bilinear law -> corresponds to the total fracture energy. More...
 
double ek
 Determines the softening for the bilinear law -> corresponds to the strain at the knee point. More...
 
double wk
 Determines the softening for the bilinear law -> corresponds to the crack opening at the knee point. More...
 
double sk
 Determines the softening for the bilinear law -> corresponds to the stress at the knee point. More...
 
double c1
 Parameters used in Hordijk's softening law. More...
 
double c2
 
EquivStrainType equivStrainType
 Parameter specifying the definition of equivalent strain. More...
 
double k
 Parameter used in Mises definition of equivalent strain. More...
 
double griff_n
 Parameter used in Griffith's criterion. More...
 
int damageLaw
 Temporary parameter reading type of softening law, used in other isotropic damage material models. More...
 
SofteningType softType
 Parameter specifying the type of softening (damage law). More...
 
double At
 Parameters used in Mazars damage law. More...
 
double Bt
 
double md
 Parameter used in "smooth damage law". More...
 
double e1
 Parameters used if softType = 7 (extended smooth damage law) More...
 
double e2
 
double s1
 
double nd
 
int checkSnapBack
 Check possible snap back flag. More...
 
double ep
 auxiliary input variablesfor softType == ST_SmoothExtended More...
 
double ft
 
double ps_alpha
 Parameters used by the model with permanent strain. More...
 
double ps_H
 
ElementCharSizeMethod ecsMethod
 Method used for evaluation of characteristic element size. More...
 
SetsourceElemSet
 Cached source element set used to map internal variables (adaptivity), created on demand. More...
 
- Protected Attributes inherited from oofem::IsotropicDamageMaterial
double tempDillatCoeff
 Coefficient of thermal dilatation. More...
 
double maxOmega
 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. More...
 
int permStrain
 Indicator of the type of permanent strain formulation (0 = standard damage with no permanent strain) More...
 
LinearElasticMateriallinearElasticMaterial
 Reference to bulk (undamaged) material. More...
 
enum oofem::IsotropicDamageMaterial::loaUnloCriterium llcriteria
 
- Protected Attributes inherited from oofem::StructuralMaterial
double referenceTemperature
 Reference temperature (temperature, when material has been built into structure). More...
 
- Protected Attributes inherited from oofem::Material
Dictionary propertyDictionary
 Property dictionary. More...
 
double castingTime
 Casting time. More...
 
- Protected Attributes inherited from oofem::FEMComponent
int number
 Component number. More...
 
Domaindomain
 Link to domain object, useful for communicating with other FEM components. More...
 
- Protected Attributes inherited from oofem::RandomMaterialExtensionInterface
IntArray randVariables
 Array of randomized variables (identified by a key). More...
 
IntArray randomVariableGenerators
 Array of generators id's for corresponding randomized variables. More...
 

Additional Inherited Members

- Static Public Member Functions inherited from oofem::IsotropicDamageMaterial1
static void computeStrainInvariants (const FloatArray &strainVector, double &I1e, double &J2e)
 Computes invariants I1 and J2 of the strain tensor from the strain components stored in a vector. More...
 
- Static Public Member Functions inherited from oofem::StructuralMaterial
static int giveSymVI (int ind1, int ind2)
 
static int giveVI (int ind1, int ind2)
 
static int giveVoigtVectorMask (IntArray &answer, MaterialMode mmode)
 Returns a mask of the vector indicies corresponding to components in a general (non-symmetric) second order tensor of some stress/strain/deformation measure that performes work. More...
 
static int giveVoigtSymVectorMask (IntArray &answer, MaterialMode mmode)
 The same as giveVoigtVectorMask but returns a mask corresponding to a symmetric second order tensor. More...
 
static void giveInvertedVoigtVectorMask (IntArray &answer, MaterialMode mmode)
 Gives the inverted version of giveVoigtVectorMask. More...
 
static int giveSizeOfVoigtVector (MaterialMode mmode)
 Returns the size of reduced stress/strain vector according to given mode. More...
 
static int giveSizeOfVoigtSymVector (MaterialMode mmode)
 Returns the size of symmetric part of a reduced stress/strain vector according to given mode. More...
 
static void giveFullVectorForm (FloatArray &answer, const FloatArray &strainVector, MaterialMode matMode)
 Converts the reduced symmetric Voigt vector (2nd order tensor) to full form. More...
 
static void giveFullVectorFormF (FloatArray &answer, const FloatArray &strainVector, MaterialMode matMode)
 Converts the reduced deformation gradient Voigt vector (2nd order tensor). More...
 
static void giveFullSymVectorForm (FloatArray &answer, const FloatArray &vec, MaterialMode matMode)
 Converts the reduced unsymmetric Voigt vector (2nd order tensor) to full form. More...
 
static void giveReducedVectorForm (FloatArray &answer, const FloatArray &vec, MaterialMode matMode)
 Converts the full symmetric Voigt vector (2nd order tensor) to reduced form. More...
 
static void giveReducedSymVectorForm (FloatArray &answer, const FloatArray &vec, MaterialMode matMode)
 Converts the full unsymmetric Voigt vector (2nd order tensor) to reduced form. More...
 
static void giveFullSymMatrixForm (FloatMatrix &answer, const FloatMatrix &red, MaterialMode matMode)
 Converts the full unsymmetric Voigt matrix (4th order tensor) to reduced form. More...
 
static void giveReducedMatrixForm (FloatMatrix &answer, const FloatMatrix &full, MaterialMode matMode)
 Converts the full symmetric Voigt matrix (4th order tensor) to reduced form. More...
 
static void giveReducedSymMatrixForm (FloatMatrix &answer, const FloatMatrix &full, MaterialMode matMode)
 Converts the full unsymmetric Voigt matrix (4th order tensor) to reduced form. More...
 
static void transformStrainVectorTo (FloatArray &answer, const FloatMatrix &base, const FloatArray &strainVector, bool transpose=false)
 Transforms 3d strain vector into another coordinate system. More...
 
static void transformStressVectorTo (FloatArray &answer, const FloatMatrix &base, const FloatArray &stressVector, bool transpose=false)
 Transforms 3d stress vector into another coordinate system. More...
 
static double computeVonMisesStress (const FloatArray *currentStress)
 Computes equivalent of von Mises stress. More...
 
static void giveStrainVectorTranformationMtrx (FloatMatrix &answer, const FloatMatrix &base, bool transpose=false)
 Computes 3d strain vector transformation matrix from standard vector transformation matrix. More...
 
static void give2DStrainVectorTranformationMtrx (FloatMatrix &answer, const FloatMatrix &base, bool transpose=false)
 Computes 2d strain vector transformation matrix from standard vector transformation matrix. More...
 
static void giveStressVectorTranformationMtrx (FloatMatrix &answer, const FloatMatrix &base, bool transpose=false)
 Computes 3d stress vector transformation matrix from standard vector transformation matrix. More...
 
static void givePlaneStressVectorTranformationMtrx (FloatMatrix &answer, const FloatMatrix &base, bool transpose=false)
 Computes 2d stress vector transformation matrix from standard vector transformation matrix. More...
 
static void sortPrincDirAndValCloseTo (FloatArray *pVal, FloatMatrix *pDir, FloatMatrix *toPDir)
 Method for sorting newly computed principal values (pVal) and corresponding principal directions (pDir) to be closed to some (often previous) principal directions (toPDir). More...
 
static void computePrincipalValues (FloatArray &answer, const FloatArray &s, stressStrainPrincMode mode)
 Common functions for convenience. More...
 
static void computePrincipalValDir (FloatArray &answer, FloatMatrix &dir, const FloatArray &s, stressStrainPrincMode mode)
 Computes principal values and directions of stress or strain vector. More...
 
static double computeDeviatoricVolumetricSplit (FloatArray &dev, const FloatArray &s)
 Computes split of receiver into deviatoric and volumetric part. More...
 
static void computeDeviatoricVolumetricSum (FloatArray &s, const FloatArray &dev, double mean)
 
static void applyDeviatoricElasticCompliance (FloatArray &strain, const FloatArray &stress, double EModulus, double nu)
 
static void applyDeviatoricElasticCompliance (FloatArray &strain, const FloatArray &stress, double GModulus)
 
static void applyDeviatoricElasticStiffness (FloatArray &stress, const FloatArray &strain, double EModulus, double nu)
 
static void applyDeviatoricElasticStiffness (FloatArray &stress, const FloatArray &strain, double GModulus)
 
static void applyElasticStiffness (FloatArray &stress, const FloatArray &strain, double EModulus, double nu)
 
static void applyElasticCompliance (FloatArray &strain, const FloatArray &stress, double EModulus, double nu)
 
static double computeStressNorm (const FloatArray &stress)
 
static double computeFirstInvariant (const FloatArray &s)
 
static double computeSecondStressInvariant (const FloatArray &s)
 
static double computeThirdStressInvariant (const FloatArray &s)
 
static double computeFirstCoordinate (const FloatArray &s)
 
static double computeSecondCoordinate (const FloatArray &s)
 
static double computeThirdCoordinate (const FloatArray &s)
 
- Static Public Attributes inherited from oofem::StructuralMaterial
static std::vector< std::vector< int > > vIindex
 Voigt index map. More...
 
static std::vector< std::vector< int > > svIndex
 Symmetric Voigt index map. More...
 
- Protected Types inherited from oofem::IsotropicDamageMaterial1
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
}
 Type characterizing the algorithm used to compute equivalent strain measure. More...
 
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
}
 Type characterizing the formula for the damage law. More...
 
- Protected Types inherited from oofem::IsotropicDamageMaterial
enum  loaUnloCriterium { idm_strainLevelCR, idm_damageLevelCR }
 Variable controlling type of loading/unloading law, default set to idm_strainLevel defines the two two possibilities: More...
 
- Protected Member Functions inherited from oofem::IsotropicDamageMaterial1
virtual void initDamaged (double kappa, FloatArray &totalStrainVector, GaussPoint *gp)
 Performs initialization, when damage first appear. More...
 
- Protected Member Functions inherited from oofem::RandomMaterialExtensionInterface
void _generateStatusVariables (GaussPoint *) const
 Sets up (generates) the variables identified in randVariables array using generators given in randomVariableGenerators and stores them in given status. More...
 
- Static Protected Attributes inherited from oofem::IsotropicDamageMaterial1
static MMAContainingElementProjection mapper
 Mapper used to map internal variables in adaptivity. More...
 
- Private Member Functions inherited from oofem::GradDpMaterialExtensionInterface
 GradDpMaterialExtensionInterface (Domain *d)
 Constructor. More...
 
virtual ~GradDpMaterialExtensionInterface ()
 Destructor. More...
 
virtual void giveFirstPKStressVectorGrad (FloatArray &answer1, double &answer2, GaussPoint *gp, const FloatArray &totalStrain, double nonlocalDamageDrivningVariable, TimeStep *tStep)
 
virtual void giveCauchyStressVectorGrad (FloatArray &answer1, double &answer2, GaussPoint *gp, const FloatArray &totalStrain, double nonlocalDamageDrivningVariable, TimeStep *tStep)
 
int giveAveragingType ()
 
void giveDistanceBasedCharacteristicLength (const FloatArray &gpCoords)
 Provides the distance based interaction radius This function is called when averType is set to 1. More...
 
- Private Member Functions inherited from oofem::Interface
 Interface ()
 Constructor. More...
 
virtual ~Interface ()
 
- Private Attributes inherited from oofem::GradDpMaterialExtensionInterface
Domaindom
 
double cl0
 Initial(user defined) characteristic length of the nonlocal model (its interpretation depends on the weight function) Is different to cl when a Stress-based or a Distance-based nonlocal variation is applied. More...
 
int averType
 Parameter which defines the averaging type When averType is equal to zereo classical approach is used for averType equal to one, distance-based apprach is used and avetType equal to two corresponds to stress-based averaging. More...
 
double beta
 Parameter which multiplied with the interaction radius cl0 gives its minimum allowed value. More...
 
double zeta
 Parameter used when Distance-based nonlocal variation is applied When it is multiplied with the interaction radius cl gives the maxinmum distance of the Gauss Point from the boundary. More...
 
double cl
 Characteristic length of the nonlocal model (its interpretation depends on the type of weight function). More...
 

Detailed Description

Gradient-enhanced Isotropic Damage model for concrete in tension,.

Definition at line 47 of file idmgrad1.h.

Constructor & Destructor Documentation

oofem::IDGMaterial::IDGMaterial ( int  n,
Domain d 
)

Constructor.

Definition at line 53 of file idmgrad1.C.

References averType, and internalLength.

oofem::IDGMaterial::~IDGMaterial ( )
virtual

Destructor.

Definition at line 63 of file idmgrad1.C.

Member Function Documentation

MaterialStatus * oofem::IDGMaterial::CreateStatus ( GaussPoint gp) const
virtual

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::IsotropicDamageMaterial1.

Definition at line 451 of file idmgrad1.C.

References oofem::FEMComponent::domain.

void oofem::IDGMaterial::give1dStressStiffMtrx ( FloatMatrix answer,
MatResponseMode  mmode,
GaussPoint gp,
TimeStep tStep 
)
virtual

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
answerStiffness matrix.
mmodeMaterial response mode.
gpIntegration point, which load history is used.
tStepTime step (most models are able to respond only when tStep is current time step).

Reimplemented from oofem::IsotropicDamageMaterial.

Definition at line 106 of file idmgrad1.C.

References oofem::FloatMatrix::at(), oofem::Material::give(), oofem::IsotropicDamageMaterial::giveLinearElasticMaterial(), oofem::IsotropicDamageMaterial1::giveStatus(), oofem::IsotropicDamageMaterialStatus::giveTempDamage(), oofem::IsotropicDamageMaterial::maxOmega, oofem::min(), oofem::FloatMatrix::resize(), and oofem::FloatMatrix::times().

Referenced by giveInterface().

virtual const char* oofem::IDGMaterial::giveClassName ( ) const
inlinevirtual
Returns
Class name of the receiver.

Reimplemented from oofem::IsotropicDamageMaterial1.

Definition at line 66 of file idmgrad1.h.

virtual const char* oofem::IDGMaterial::giveInputRecordName ( ) const
inlinevirtual
Returns
Input record name of the receiver.

Reimplemented from oofem::IsotropicDamageMaterial1.

Definition at line 67 of file idmgrad1.h.

References _IFT_IDGMaterial_Name, and initializeFrom().

void oofem::IDGMaterial::givePDGradMatrix_kk ( FloatMatrix answer,
MatResponseMode  mode,
GaussPoint gp,
TimeStep tStep 
)
virtual

Right lower block.

Implements oofem::GradDpMaterialExtensionInterface.

Definition at line 591 of file idmgrad1.C.

References oofem::GaussPoint::giveMaterialMode(), and OOFEM_ERROR.

Referenced by giveInterface().

void oofem::IDGMaterial::givePDGradMatrix_ku ( FloatMatrix answer,
MatResponseMode  mode,
GaussPoint gp,
TimeStep tStep 
)
virtual

Left lower block.

Implements oofem::GradDpMaterialExtensionInterface.

Definition at line 553 of file idmgrad1.C.

References oofem::GaussPoint::giveMaterialMode(), and OOFEM_ERROR.

Referenced by giveInterface().

void oofem::IDGMaterial::givePDGradMatrix_LD ( FloatMatrix answer,
MatResponseMode  mode,
GaussPoint gp,
TimeStep tStep 
)
virtual

Stress-based averaging.

Implements oofem::GradDpMaterialExtensionInterface.

Definition at line 610 of file idmgrad1.C.

References oofem::GaussPoint::giveMaterialMode(), and OOFEM_ERROR.

Referenced by giveInterface().

void oofem::IDGMaterial::givePDGradMatrix_uk ( FloatMatrix answer,
MatResponseMode  mode,
GaussPoint gp,
TimeStep tStep 
)
virtual

Right upper block.

Implements oofem::GradDpMaterialExtensionInterface.

Definition at line 572 of file idmgrad1.C.

References oofem::GaussPoint::giveMaterialMode(), and OOFEM_ERROR.

Referenced by giveInterface().

void oofem::IDGMaterial::givePDGradMatrix_uu ( FloatMatrix answer,
MatResponseMode  mode,
GaussPoint gp,
TimeStep tStep 
)
virtual

Left upper block.

Implements oofem::GradDpMaterialExtensionInterface.

Definition at line 534 of file idmgrad1.C.

References oofem::GaussPoint::giveMaterialMode(), and OOFEM_ERROR.

Referenced by giveInterface().

void oofem::IDGMaterial::givePlaneStrainStiffMtrx ( FloatMatrix answer,
MatResponseMode  mmode,
GaussPoint gp,
TimeStep tStep 
)
virtual

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
answerStiffness matrix.
mmodeMaterial response mode.
gpIntegration point, which load history is used.
tStepTime step (most models are able to respond only when tStep is current time step).

Reimplemented from oofem::IsotropicDamageMaterial.

Definition at line 214 of file idmgrad1.C.

References oofem::IsotropicDamageMaterial::giveLinearElasticMaterial(), oofem::IsotropicDamageMaterial1::giveStatus(), oofem::StructuralMaterial::giveStiffnessMatrix(), oofem::IsotropicDamageMaterialStatus::giveTempDamage(), oofem::IsotropicDamageMaterial::maxOmega, oofem::min(), and oofem::FloatMatrix::times().

Referenced by giveInterface().

void oofem::IDGMaterial::givePlaneStressStiffMtrx ( FloatMatrix answer,
MatResponseMode  mmode,
GaussPoint gp,
TimeStep tStep 
)
virtual

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
answerStiffness matrix.
mmodeMaterial response mode.
gpIntegration point, which load history is used.
tStepTime step (most models are able to respond only when tStep is current time step).

Reimplemented from oofem::IsotropicDamageMaterial.

Definition at line 159 of file idmgrad1.C.

References oofem::IsotropicDamageMaterial::giveLinearElasticMaterial(), oofem::IsotropicDamageMaterial1::giveStatus(), oofem::StructuralMaterial::giveStiffnessMatrix(), oofem::IsotropicDamageMaterialStatus::giveTempDamage(), oofem::IsotropicDamageMaterial::maxOmega, oofem::min(), and oofem::FloatMatrix::times().

Referenced by giveInterface().

void oofem::IDGMaterial::giveStiffnessMatrix ( FloatMatrix answer,
MatResponseMode  mode,
GaussPoint gp,
TimeStep tStep 
)
virtual

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
answerContains result.
modeMaterial response mode.
gpIntegration point.
tStepTime step (most models are able to respond only when tStep is current time step).

Reimplemented from oofem::StructuralMaterial.

Definition at line 95 of file idmgrad1.C.

References OOFEM_ERROR.

Referenced by giveInterface().

int oofem::IDGMaterial::hasMaterialModeCapability ( MaterialMode  mode)
virtual

Tests if material supports material mode.

Parameters
modeRequired material mode.
Returns
Nonzero if supported, zero otherwise.

Reimplemented from oofem::IsotropicDamageMaterial.

Definition at line 89 of file idmgrad1.C.

Referenced by giveInterface().

IRResultType oofem::IDGMaterial::initializeFrom ( InputRecord ir)
virtual

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.

See also
IR_GIVE_FIELD
IR_GIVE_OPTIONAL_FIELD
Parameters
irInput record to initialize from.
Returns
IRResultType

Reimplemented from oofem::IsotropicDamageMaterial1.

Definition at line 70 of file idmgrad1.C.

References oofem::GradDpMaterialExtensionInterface::initializeFrom(), oofem::MaterialMappingAlgorithm::initializeFrom(), oofem::IsotropicDamageMaterial1::initializeFrom(), oofem::IRRT_OK, and oofem::IsotropicDamageMaterial1::mapper.

Referenced by giveInputRecordName().

Member Data Documentation

int oofem::IDGMaterial::averType
protected

Parameter specifiying averaging type(0 - classical, 1 - distance based, 2 - stress based)

Definition at line 53 of file idmgrad1.h.

Referenced by giveInternalLength(), and IDGMaterial().

double oofem::IDGMaterial::beta
protected

Parameters specifying how the length scale parameter l is adjusted.

Definition at line 55 of file idmgrad1.h.

Referenced by giveInternalLength(), and giveInternalLengthDerivative().

double oofem::IDGMaterial::internalLength
protected

Length scale parameter.

Definition at line 51 of file idmgrad1.h.

Referenced by IDGMaterial().

double oofem::IDGMaterial::t
protected

Definition at line 55 of file idmgrad1.h.


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

This page is part of the OOFEM documentation. Copyright (c) 2011 Borek Patzak
Project e-mail: info@oofem.org
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