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

Material damage model for transversely orthotropic material. More...

#include <compodamagemat.h>

+ Inheritance diagram for oofem::CompoDamageMat:
+ Collaboration diagram for oofem::CompoDamageMat:

Public Member Functions

 CompoDamageMat (int n, Domain *d)
 Constructor. More...
 
virtual ~CompoDamageMat ()
 Destructor. 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 void giveInputRecord (DynamicInputRecord &input)
 Setups the input record string of receiver. More...
 
virtual MaterialStatusCreateStatus (GaussPoint *gp) const
 Creates new copy of associated status and inserts it into given integration point. More...
 
virtual void give3dMaterialStiffnessMatrix (FloatMatrix &answer, MatResponseMode mmode, 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 &, 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_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...
 
- Public Member Functions inherited from oofem::StructuralMaterial
 StructuralMaterial (int n, Domain *d)
 Constructor. More...
 
virtual ~StructuralMaterial ()
 Destructor. More...
 
virtual int hasMaterialModeCapability (MaterialMode mode)
 Tests if material supports material mode. More...
 
virtual void giveStiffnessMatrix (FloatMatrix &answer, MatResponseMode mode, GaussPoint *gp, TimeStep *tStep)
 Computes the stiffness matrix for giveRealStressVector of receiver in given integration point, respecting its history. 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_ShellStressControl (FloatArray &answer, GaussPoint *gp, const FloatArray &reducedE, const IntArray &strainControl, TimeStep *tStep)
 
virtual void giveRealStressVector_PlaneStress (FloatArray &answer, GaussPoint *gp, const FloatArray &reducedE, TimeStep *tStep)
 Default implementation relies on giveRealStressVector_StressControl. More...
 
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)
 
virtual void giveThermalDilatationVector (FloatArray &answer, GaussPoint *gp, TimeStep *tStep)
 Returns a vector of coefficients of thermal dilatation in direction of each material principal (local) axis. More...
 
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 (FloatMatrix &answer, MatResponseMode mmode, GaussPoint *gp, TimeStep *tStep)
 Method for computing plane stress stiffness matrix of receiver. More...
 
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 (FloatMatrix &answer, MatResponseMode mmode, GaussPoint *gp, TimeStep *tStep)
 Method for computing plane strain stiffness matrix of receiver. More...
 
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 (FloatMatrix &answer, MatResponseMode mmode, GaussPoint *gp, TimeStep *tStep)
 Method for computing 1d stiffness matrix of receiver. More...
 
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 isCharacteristicMtrxSymmetric (MatResponseMode rMode)
 Returns true if stiffness matrix of receiver is symmetric Default implementation returns true. More...
 
virtual double give (int aProperty, GaussPoint *gp)
 Returns the value of material property 'aProperty'. 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 hasNonLinearBehaviour ()
 Returns nonzero if receiver is non linear. More...
 
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 MaterialStatusgiveStatus (GaussPoint *gp) const
 Returns material status of receiver in given integration point. 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...
 
virtual InterfacegiveInterface (InterfaceType t)
 Interface requesting service. More...
 
std::string errorInfo (const char *func) const
 Returns string for prepending output (used by error reporting macros). More...
 

Public Attributes

int afterIter
 Optional parameter determining after how many iterations within the time step the damage is calculated. More...
 

Protected Member Functions

void giveUnrotated3dMaterialStiffnessMatrix (FloatMatrix &answer, MatResponseMode mode, GaussPoint *gp)
 Returns 3D material stiffness matrix [6x6] in unrotated form. More...
 
int giveMatStiffRotationMatrix (FloatMatrix &answer, GaussPoint *gp)
 Returns [6x6] rotation matrix in the global coordinate system. More...
 
void giveCharLength (CompoDamageMatStatus *status, GaussPoint *gp, FloatMatrix &elementCs)
 Fills array elemCharLength with characteristic length related to three perpendicular planes. More...
 
void giveCharLengthForModes (FloatArray &charLenModes, GaussPoint *gp)
 Computes characteristic length for fixed planes of material orientation. More...
 
void checkSnapBack (GaussPoint *gp, MaterialMode mMode)
 Check that element is small enough or Gf is large enough to prevent the snap-back. More...
 

Protected Attributes

FloatArray inputTension
 Six stress components of tension components read from the input file. More...
 
FloatArray inputCompression
 Six stress components of compression components read from the input file. More...
 
IntArray allowSnapBack
 Stress components which are allowed for snap back [6 tension, 6 compression]. More...
 
- 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...
 

Additional Inherited Members

- Static Public Member Functions inherited from oofem::StructuralMaterial
static int giveSymVI (int ind1, int ind2)
 
static int giveVI (int ind1, int ind2)
 
static 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...
 

Detailed Description

Material damage model for transversely orthotropic material.

Fixed cracks are induced in principal material coordinates, always perpendicular to material axis. Six cracking modes are implemented in three orthogonal directions - three for tension/compression failure and three for shear failure. Material orientation can be specified on each element with "lmcs" keyword, otherwise global material orientation is assumed.

Evolution of cracks is determined separately in compression and tension. Linear softening is assumed (can be easily changed to exponential but requires then inner iterations)

For derivation of the model see the book Bazant and Planas, Fracture and Size Effect in Concrete and Other Quasibrittle Materials, pp.236 or article Bazant and Oh: Crack band theory for fracture of concrete, Materials and Structures, 1983.

The model is aimed for 3D problems but extension for 1D truss works. In this particular case, only the first array component is used in all involved variables.

Author
Vit Smilauer
Todo:
This class should overload give1dMaterialStiffMtrx

Definition at line 139 of file compodamagemat.h.

Constructor & Destructor Documentation

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

Constructor.

Definition at line 48 of file compodamagemat.C.

oofem::CompoDamageMat::~CompoDamageMat ( )
virtual

Destructor.

Definition at line 53 of file compodamagemat.C.

Member Function Documentation

void oofem::CompoDamageMat::checkSnapBack ( GaussPoint gp,
MaterialMode  mMode 
)
protected

Check that element is small enough or Gf is large enough to prevent the snap-back.

Parameters
gpIntegration point.
mModeType of material (_1dMat, _3dMat supported).
Todo:
Check value here for 1d mat (old broken code used undeclared variable)

Definition at line 478 of file compodamagemat.C.

References oofem::__MaterialModeToString(), allowSnapBack, oofem::FloatArray::at(), oofem::IntArray::contains(), oofem::CompoDamageMatStatus::elemCharLength, Ex, Ey, Ez, oofem::Material::give(), giveCharLengthForModes(), oofem::GaussPoint::giveElement(), oofem::FEMComponent::giveNumber(), oofem::GaussPoint::giveNumber(), oofem::Material::giveStatus(), Gxy, Gxz, Gyz, inputCompression, inputTension, OOFEM_ERROR, and OOFEM_LOG_INFO.

Referenced by giveRealStressVector().

virtual MaterialStatus* oofem::CompoDamageMat::CreateStatus ( GaussPoint gp) const
inlinevirtual

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 153 of file compodamagemat.h.

References oofem::CompoDamageMatStatus::CompoDamageMatStatus(), oofem::FEMComponent::domain, and oofem::IntegrationPointStatus::gp.

void oofem::CompoDamageMat::give3dMaterialStiffnessMatrix ( FloatMatrix answer,
MatResponseMode  mode,
GaussPoint gp,
TimeStep tStep 
)
virtual

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

Parameters
answerComputed results.
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 125 of file compodamagemat.C.

References giveMatStiffRotationMatrix(), giveUnrotated3dMaterialStiffnessMatrix(), and oofem::FloatMatrix::rotatedWith().

void oofem::CompoDamageMat::giveCharLength ( CompoDamageMatStatus status,
GaussPoint gp,
FloatMatrix elementCs 
)
protected

Fills array elemCharLength with characteristic length related to three perpendicular planes.

The planes are of the same orientation as material.

Parameters
statusPointer to integration point's status.
gpIntegration point.
elementCsMaterial orientation matrix.

Definition at line 445 of file compodamagemat.C.

References oofem::FloatArray::at(), oofem::FloatMatrix::at(), oofem::CompoDamageMatStatus::elemCharLength, oofem::Element::giveCharacteristicLength(), and oofem::GaussPoint::giveElement().

Referenced by giveRealStressVector().

void oofem::CompoDamageMat::giveCharLengthForModes ( FloatArray charLenModes,
GaussPoint gp 
)
protected

Computes characteristic length for fixed planes of material orientation.

Parameters
charLenModesReturns six lengths.
gpIntegration point.

Definition at line 464 of file compodamagemat.C.

References oofem::FloatArray::at(), oofem::CompoDamageMatStatus::elemCharLength, oofem::Material::giveStatus(), and oofem::FloatArray::resize().

Referenced by checkSnapBack(), and giveRealStressVector().

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

Reimplemented from oofem::StructuralMaterial.

Definition at line 147 of file compodamagemat.h.

void oofem::CompoDamageMat::giveInputRecord ( DynamicInputRecord input)
virtual

Setups the input record string of receiver.

Parameters
inputDynamic input record to be filled by receiver.

Reimplemented from oofem::StructuralMaterial.

Definition at line 117 of file compodamagemat.C.

References oofem::StructuralMaterial::giveInputRecord(), and OOFEM_ERROR.

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

Implements oofem::FEMComponent.

Definition at line 148 of file compodamagemat.h.

References _IFT_CompoDamageMat_Name, oofem::FEMComponent::giveInputRecord(), and oofem::MaterialStatus::initializeFrom().

int oofem::CompoDamageMat::giveIPValue ( FloatArray answer,
GaussPoint gp,
InternalStateType  type,
TimeStep tStep 
)
virtual

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::StructuralMaterial.

Definition at line 352 of file compodamagemat.C.

References oofem::StructuralMaterial::giveIPValue(), oofem::Material::giveStatus(), and oofem::CompoDamageMatStatus::omega.

int oofem::CompoDamageMat::giveMatStiffRotationMatrix ( FloatMatrix answer,
GaussPoint gp 
)
protected

Returns [6x6] rotation matrix in the global coordinate system.

The matrix relates local c.s. to global c.s. Local c.s. can be specified with 'mcs' flag defined on element.

Parameters
answerRotation matrix [3x3].
gpIntegration point.
Returns
0 if no lcs is defined on element, 1 if defined.

Definition at line 415 of file compodamagemat.C.

References oofem::__MaterialModeToString(), oofem::GaussPoint::giveElement(), oofem::Element::giveLocalCoordinateSystem(), oofem::GaussPoint::giveMaterialMode(), oofem::StructuralMaterial::giveStrainVectorTranformationMtrx(), and OOFEM_ERROR.

Referenced by give3dMaterialStiffnessMatrix().

void oofem::CompoDamageMat::giveRealStressVector ( FloatArray answer,
GaussPoint gp,
const FloatArray reducedStrain,
TimeStep tStep 
)
virtual

Computes the real stress vector for given total strain and integration point.

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

Parameters
answerStress vector in reduced form. For large deformations it is treated as the second Piola-Kirchoff stress.
gpIntegration point.
reducedStrainStrain vector in reduced form. For large deformations it is treated as the Green-Lagrange strain.
tStepCurrent time step (most models are able to respond only when tStep is current time step).
Todo:
Move this to StructuralCrossSection ?

Reimplemented from oofem::StructuralMaterial.

Definition at line 137 of file compodamagemat.C.

References oofem::__MaterialModeToString(), oofem::IntArray::at(), oofem::FloatArray::at(), oofem::FloatMatrix::beUnitMatrix(), checkSnapBack(), oofem::CompoDamageMatStatus::elemCharLength, Ex, Ey, Ez, oofem::Material::give(), oofem::Element::giveCharacteristicLength(), giveCharLength(), giveCharLengthForModes(), oofem::GaussPoint::giveElement(), oofem::Element::giveLocalCoordinateSystem(), oofem::GaussPoint::giveMaterialMode(), oofem::FEMComponent::giveNumber(), oofem::Material::giveStatus(), oofem::StructuralMaterialStatus::giveStrainVector(), oofem::StructuralMaterial::giveStressDependentPartOfStrainVector(), oofem::StructuralMaterialStatus::giveStressVector(), giveUnrotated3dMaterialStiffnessMatrix(), Gxy, Gxz, Gyz, oofem::CompoDamageMatStatus::hasSnapBack, oofem::CompoDamageMatStatus::initDamageStress, inputCompression, inputTension, oofem::CompoDamageMatStatus::Iteration, oofem::CompoDamageMatStatus::kappa, oofem::StructuralMaterialStatus::letTempStrainVectorBe(), oofem::StructuralMaterialStatus::letTempStressVectorBe(), oofem::max(), oofem::CompoDamageMatStatus::maxStrainAtZeroStress, oofem::min(), NYxy, NYxz, NYyx, NYyz, NYzx, NYzy, oofem::CompoDamageMatStatus::omega, OOFEM_ERROR, OOFEM_WARNING, oofem::FloatArray::resize(), oofem::FloatMatrix::resize(), oofem::CompoDamageMatStatus::strainAtMaxStress, oofem::CompoDamageMatStatus::tempKappa, oofem::CompoDamageMatStatus::tempOmega, oofem::CompoDamageMatStatus::tempStressMLCS, oofem::StructuralMaterial::transformStrainVectorTo(), and oofem::StructuralMaterial::transformStressVectorTo().

virtual void oofem::CompoDamageMat::giveRealStressVector_1d ( FloatArray answer,
GaussPoint gp,
const FloatArray reducedE,
TimeStep tStep 
)
inlinevirtual

Default implementation relies on giveRealStressVector_StressControl.

Reimplemented from oofem::StructuralMaterial.

Definition at line 165 of file compodamagemat.h.

virtual void oofem::CompoDamageMat::giveRealStressVector_3d ( FloatArray answer,
GaussPoint gp,
const FloatArray reducedE,
TimeStep tStep 
)
inlinevirtual

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

Reimplemented from oofem::StructuralMaterial.

Definition at line 163 of file compodamagemat.h.

void oofem::CompoDamageMat::giveUnrotated3dMaterialStiffnessMatrix ( FloatMatrix answer,
MatResponseMode  mode,
GaussPoint gp 
)
protected

Returns 3D material stiffness matrix [6x6] in unrotated form.

The matrix is reduced by by omega variables.

Parameters
answerFull symmetric matrix.
modeMaterial mode of stiffness matrix (elastic, secant).
gpIntegration point.

Definition at line 364 of file compodamagemat.C.

References oofem::FloatArray::at(), oofem::FloatMatrix::at(), Ex, Ey, Ez, oofem::Material::give(), oofem::Material::giveStatus(), Gxy, Gxz, Gyz, NYxy, NYyz, oofem::FloatMatrix::resize(), oofem::FloatMatrix::symmetrized(), oofem::CompoDamageMatStatus::tempOmega, and oofem::FloatMatrix::zero().

Referenced by give3dMaterialStiffnessMatrix(), and giveRealStressVector().

IRResultType oofem::CompoDamageMat::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::StructuralMaterial.

Definition at line 58 of file compodamagemat.C.

References _IFT_CompoDamageMat_afteriter, _IFT_CompoDamageMat_allowSnapBack, _IFT_CompoDamageMat_compres_f0_gf, _IFT_CompoDamageMat_exx, _IFT_CompoDamageMat_eyyezz, _IFT_CompoDamageMat_Gxy, _IFT_CompoDamageMat_nuxynuxz, _IFT_CompoDamageMat_nuyz, _IFT_CompoDamageMat_tension_f0_gf, oofem::Dictionary::add(), afterIter, allowSnapBack, oofem::FloatArray::at(), Ex, Ey, Ez, oofem::Material::give(), oofem::FloatArray::giveSize(), Gxy, Gxz, Gyz, oofem::Material::initializeFrom(), inputCompression, inputTension, IR_GIVE_FIELD, IR_GIVE_OPTIONAL_FIELD, NYxy, NYxz, NYyx, NYyz, NYzx, NYzy, OOFEM_ERROR, and oofem::Material::propertyDictionary.

Member Data Documentation

int oofem::CompoDamageMat::afterIter

Optional parameter determining after how many iterations within the time step the damage is calculated.

This is important for stress evaluation which is unequilibrated in the beginning. Variables strainAtMaxStress, initDamageStress, maxStrainAtZeroStress are evaluated afterIter.

Definition at line 175 of file compodamagemat.h.

Referenced by initializeFrom().

IntArray oofem::CompoDamageMat::allowSnapBack
protected

Stress components which are allowed for snap back [6 tension, 6 compression].

Definition at line 201 of file compodamagemat.h.

Referenced by checkSnapBack(), and initializeFrom().

FloatArray oofem::CompoDamageMat::inputCompression
protected

Six stress components of compression components read from the input file.

Definition at line 198 of file compodamagemat.h.

Referenced by checkSnapBack(), giveRealStressVector(), and initializeFrom().

FloatArray oofem::CompoDamageMat::inputTension
protected

Six stress components of tension components read from the input file.

Definition at line 196 of file compodamagemat.h.

Referenced by checkSnapBack(), giveRealStressVector(), and initializeFrom().


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

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