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

This class allows for custom user materials from Abaqus (UMAT). More...

#include <abaqususermaterial.h>

+ Inheritance diagram for oofem::AbaqusUserMaterial:
+ Collaboration diagram for oofem::AbaqusUserMaterial:

Public Member Functions

 AbaqusUserMaterial (int n, Domain *d)
 Constructor. More...
 
virtual ~AbaqusUserMaterial ()
 Destructor. More...
 
virtual IRResultType initializeFrom (InputRecord *ir)
 Reads the following values;. 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 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 give3dMaterialStiffnessMatrix_dPdF (FloatMatrix &answer, MatResponseMode mode, GaussPoint *gp, TimeStep *tStep)
 
virtual void givePlaneStrainStiffMtrx_dPdF (FloatMatrix &answer, MatResponseMode mmode, GaussPoint *gp, TimeStep *tStep)
 
virtual void giveRealStressVector_3d (FloatArray &answer, GaussPoint *gp, const FloatArray &reducedStrain, TimeStep *tStep)
 Default implementation relies on giveRealStressVector for second Piola-Kirchoff stress. 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 int giveIPValue (FloatArray &answer, GaussPoint *gp, InternalStateType type, TimeStep *tStep)
 Returns the integration point corresponding value in Reduced form. More...
 
virtual int hasNonLinearBehaviour ()
 Returns nonzero if receiver is non linear. More...
 
virtual const char * giveClassName () const
 
virtual const char * giveInputRecordName () const
 
- 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 (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_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_1d (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_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_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_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 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...
 

Private Attributes

void * umatobj
 Dynamically loaded umat. More...
 
void(* umat )(double *stress, double *statev, double *ddsdde, double *sse, double *spd, double *scd, double *rpl, double *ddsddt, double *drplde, double *drpldt, double *stran, double *dstran, double time[2], double *dtime, double *temp, double *dtemp, double predef[1], double dpred[1], char cmname[80], int *ndi, int *nshr, int *ntens, int *nstatv, double *props, int *nprops, double coords[3], double *drot, double *pnewdt, double *celent, double *dfgrd0, double *dfgrd1, int *noel, int *npt, int *layer, int *kspt, int *kstep, int *kinc)
 Pointer to the dynamically loaded umat-function (translated to C) More...
 
char cmname [80]
 Name for material routine. More...
 
int numState
 Size of the state vector. More...
 
FloatArray properties
 Material properties. More...
 
FloatArray initialStress
 Initial stress. More...
 
int mStressInterpretation
 Flag to determine how the stress and Jacobian are interpreted. More...
 
bool mUseNumericalTangent
 Flag to determine if numerical tangent should be used. More...
 
double mPerturbation
 Size of perturbation if numerical tangent is used. More...
 
std::string filename
 Name of the file that contains the umat function. More...
 

Static Private Attributes

static int n = 1
 Gausspoint counter. 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...
 
- 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...
 

Detailed Description

This class allows for custom user materials from Abaqus (UMAT).

Note
Experimental, subject to change. Many optional arguments haven't been dealt with properly (and few umat functions actually use all of them).
Nothing for large deformations have been tested.
Author
Mikael Öhman

The umat material should be compiled as a shared library. For example, compile like this;

* gfortran -fPIC -fdefault-real-8 -shared -Wl,-soname,umat.so -o umat.so my_umat_code.f
* 

The interface for a user material file for Abaqus is as follows: SUBROUTINE UMAT(STRESS,STATEV,DDSDDE,SSE,SPD, SCD,RPL,DDSDDT,DRPLDE,DRPLDT, STRAN,DSTRAN,TIME,DTIME,TEMP,DTEMP,PREDEF,DPRED,CMNAME, NDI,NSHR,NTENS,NSTATV,PROPS,NPROPS,COORDS,DROT,PNEWDT, CELENT,DFGRD0,DFGRD1,NOEL,NPT,LAYER,KSPT,KSTEP,KINC)

CHARACTER*80 CMNAME DOUBLE PRECISION STRESS(NTENS),STATEV(NSTATV), DDSDDE(NTENS,NTENS),DDSDDT(NTENS),DRPLDE(NTENS), STRAN(NTENS),DSTRAN(NTENS),TIME(2),PREDEF(1),DPRED(1), PROPS(NPROPS),COORDS(3),DROT(3,3),DFGRD0(3,3),DFGRD1(3,3)

Definition at line 80 of file abaqususermaterial.h.

Constructor & Destructor Documentation

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

Constructor.

Definition at line 53 of file abaqususermaterial.C.

oofem::AbaqusUserMaterial::~AbaqusUserMaterial ( )
virtual

Destructor.

Definition at line 61 of file abaqususermaterial.C.

References umatobj.

Member Function Documentation

MaterialStatus * oofem::AbaqusUserMaterial::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::Material.

Definition at line 144 of file abaqususermaterial.C.

References oofem::FEMComponent::giveDomain(), n, and numState.

void oofem::AbaqusUserMaterial::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).
Todo:
Make this hack fit more nicely into OOFEM in general;

Reimplemented from oofem::StructuralMaterial.

Definition at line 150 of file abaqususermaterial.C.

References oofem::FloatArray::at(), oofem::GaussPoint::giveMaterialStatus(), giveRealStressVector_3d(), oofem::FloatArray::giveSize(), oofem::Material::giveStatus(), oofem::AbaqusUserMaterialStatus::giveTempTangent(), oofem::AbaqusUserMaterialStatus::hasTangent(), oofem::FloatMatrix::printYourself(), oofem::FloatArray::subtract(), oofem::FloatArray::times(), and oofem::FloatArray::zero().

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

Reimplemented from oofem::StructuralMaterial.

Definition at line 162 of file abaqususermaterial.h.

void oofem::AbaqusUserMaterial::giveFirstPKStressVector_3d ( FloatArray answer,
GaussPoint gp,
const FloatArray reducedF,
TimeStep tStep 
)
virtual

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

Todo:
Check this. I'm just guessing. Maybe intrinsic time instead?
Todo:
Right default value? umat routines may change this (although we ignore it)
Todo:
Large deformations?
Todo:
Include the characteristic element length
Todo:
No idea about these parameters
Todo:
Have this function:

Reimplemented from oofem::StructuralMaterial.

Definition at line 412 of file abaqususermaterial.C.

References oofem::FloatMatrix::at(), oofem::FloatArray::beDifferenceOf(), oofem::FloatMatrix::beInverseOf(), oofem::FloatMatrix::beMatrixForm(), oofem::FloatMatrix::beProductOf(), oofem::FloatMatrix::beProductTOf(), oofem::FloatArray::beSymVectorForm(), oofem::FloatArray::beSymVectorFormOfStrain(), oofem::FloatMatrix::beTProductOf(), oofem::FloatMatrix::beUnitMatrix(), oofem::FloatArray::beVectorForm(), oofem::FloatArray::changeComponentOrder(), oofem::FloatMatrix::changeComponentOrder(), cmname, oofem::Element::computeGlobalCoordinates(), E, oofem::FloatMatrix::giveDeterminant(), oofem::GaussPoint::giveElement(), oofem::StructuralMaterialStatus::giveFVector(), oofem::TimeStep::giveMetaStepNumber(), oofem::GaussPoint::giveNaturalCoordinates(), oofem::FEMComponent::giveNumber(), oofem::FloatArray::givePointer(), oofem::FloatMatrix::givePointer(), oofem::FloatArray::giveSize(), oofem::AbaqusUserMaterialStatus::giveStateVector(), oofem::Material::giveStatus(), oofem::StructuralMaterialStatus::giveStrainVector(), oofem::TimeStep::giveTargetTime(), oofem::TimeStep::giveTimeIncrement(), oofem::StructuralMaterialStatus::letTempFVectorBe(), oofem::StructuralMaterialStatus::letTempPVectorBe(), oofem::AbaqusUserMaterialStatus::letTempStateVectorBe(), oofem::StructuralMaterialStatus::letTempStrainVectorBe(), oofem::StructuralMaterialStatus::letTempStressVectorBe(), oofem::AbaqusUserMaterialStatus::letTempTangentBe(), mStressInterpretation, numState, OOFEM_LOG_DEBUG, properties, S, oofem::FloatMatrix::times(), and umat.

Referenced by give3dMaterialStiffnessMatrix_dPdF().

void oofem::AbaqusUserMaterial::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 134 of file abaqususermaterial.C.

References _IFT_AbaqusUserMaterial_name, _IFT_AbaqusUserMaterial_numState, _IFT_AbaqusUserMaterial_properties, _IFT_AbaqusUserMaterial_userMaterial, cmname, filename, oofem::StructuralMaterial::giveInputRecord(), numState, properties, and oofem::DynamicInputRecord::setField().

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

Implements oofem::FEMComponent.

Definition at line 163 of file abaqususermaterial.h.

References _IFT_AbaqusUserMaterial_Name.

int oofem::AbaqusUserMaterial::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 620 of file abaqususermaterial.C.

References oofem::FloatArray::add(), oofem::StructuralMaterial::giveIPValue(), oofem::AbaqusUserMaterialStatus::giveStateVector(), oofem::Material::giveStatus(), oofem::StructuralMaterialStatus::giveStressVector(), and initialStress.

void oofem::AbaqusUserMaterial::givePlaneStrainStiffMtrx_dPdF ( FloatMatrix answer,
MatResponseMode  mmode,
GaussPoint gp,
TimeStep tStep 
)
virtual
void oofem::AbaqusUserMaterial::giveRealStressVector_3d ( FloatArray answer,
GaussPoint gp,
const FloatArray reducedE,
TimeStep tStep 
)
virtual

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

Todo:
Check this. I'm just guessing. Maybe intrinsic time instead?
Todo:
Right default value? umat routines may change this (although we ignore it)
Todo:
Include the characteristic element length
Todo:
No idea about these parameters

Reimplemented from oofem::StructuralMaterial.

Definition at line 255 of file abaqususermaterial.C.

References oofem::FloatArray::add(), oofem::FloatArray::beDifferenceOf(), oofem::FloatMatrix::beUnitMatrix(), oofem::FloatArray::changeComponentOrder(), oofem::FloatMatrix::changeComponentOrder(), cmname, oofem::Element::computeGlobalCoordinates(), oofem::GaussPoint::giveElement(), oofem::GaussPoint::giveNaturalCoordinates(), oofem::FEMComponent::giveNumber(), oofem::FloatArray::givePointer(), oofem::FloatMatrix::givePointer(), oofem::FloatArray::giveSize(), oofem::AbaqusUserMaterialStatus::giveStateVector(), oofem::Material::giveStatus(), oofem::StructuralMaterialStatus::giveStrainVector(), oofem::StructuralMaterialStatus::giveStressVector(), oofem::TimeStep::giveTargetTime(), oofem::TimeStep::giveTimeIncrement(), initialStress, oofem::AbaqusUserMaterialStatus::letTempStateVectorBe(), oofem::StructuralMaterialStatus::letTempStrainVectorBe(), oofem::StructuralMaterialStatus::letTempStressVectorBe(), oofem::AbaqusUserMaterialStatus::letTempTangentBe(), numState, OOFEM_LOG_DEBUG, properties, oofem::FloatArray::subtract(), and umat.

Referenced by give3dMaterialStiffnessMatrix().

virtual int oofem::AbaqusUserMaterial::hasNonLinearBehaviour ( )
inlinevirtual

Returns nonzero if receiver is non linear.

Reimplemented from oofem::Material.

Definition at line 161 of file abaqususermaterial.h.

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

Reads the following values;.

  • numstate (required, integer): number of state variables.
  • properties (required, FloatArray): material property values.
  • umat (required, string): Filename of umat file dynamically library.
  • name (optional, string, default "umat"): Name of material model (used for input to umat routine).

Reimplemented from oofem::StructuralMaterial.

Definition at line 75 of file abaqususermaterial.C.

References _IFT_AbaqusUserMaterial_initialStress, _IFT_AbaqusUserMaterial_name, _IFT_AbaqusUserMaterial_numericalTangent, _IFT_AbaqusUserMaterial_numericalTangentPerturbation, _IFT_AbaqusUserMaterial_numState, _IFT_AbaqusUserMaterial_properties, _IFT_AbaqusUserMaterial_userMaterial, cmname, filename, oofem::InputRecord::hasField(), oofem::StructuralMaterial::initializeFrom(), initialStress, IR_GIVE_FIELD, IR_GIVE_OPTIONAL_FIELD, oofem::IRRT_OK, mPerturbation, mUseNumericalTangent, numState, OOFEM_ERROR, properties, umat, and umatobj.

Member Data Documentation

char oofem::AbaqusUserMaterial::cmname[80]
private

Name for material routine.

Definition at line 97 of file abaqususermaterial.h.

Referenced by giveFirstPKStressVector_3d(), giveInputRecord(), giveRealStressVector_3d(), and initializeFrom().

std :: string oofem::AbaqusUserMaterial::filename
private

Name of the file that contains the umat function.

Definition at line 121 of file abaqususermaterial.h.

Referenced by giveInputRecord(), and initializeFrom().

FloatArray oofem::AbaqusUserMaterial::initialStress
private

Initial stress.

Definition at line 103 of file abaqususermaterial.h.

Referenced by giveIPValue(), giveRealStressVector_3d(), and initializeFrom().

double oofem::AbaqusUserMaterial::mPerturbation
private

Size of perturbation if numerical tangent is used.

Definition at line 118 of file abaqususermaterial.h.

Referenced by give3dMaterialStiffnessMatrix_dPdF(), and initializeFrom().

int oofem::AbaqusUserMaterial::mStressInterpretation
private

Flag to determine how the stress and Jacobian are interpreted.

0 implies that the P and dPdF are returned from the umat routine.

Definition at line 108 of file abaqususermaterial.h.

Referenced by giveFirstPKStressVector_3d().

bool oofem::AbaqusUserMaterial::mUseNumericalTangent
private

Flag to determine if numerical tangent should be used.

Definition at line 113 of file abaqususermaterial.h.

Referenced by give3dMaterialStiffnessMatrix_dPdF(), and initializeFrom().

int oofem::AbaqusUserMaterial::n = 1
staticprivate

Gausspoint counter.

Definition at line 84 of file abaqususermaterial.h.

Referenced by CreateStatus().

int oofem::AbaqusUserMaterial::numState
private

Size of the state vector.

Definition at line 99 of file abaqususermaterial.h.

Referenced by CreateStatus(), giveFirstPKStressVector_3d(), giveInputRecord(), giveRealStressVector_3d(), and initializeFrom().

FloatArray oofem::AbaqusUserMaterial::properties
private
void( * oofem::AbaqusUserMaterial::umat) (double *stress, double *statev, double *ddsdde, double *sse, double *spd,double *scd, double *rpl, double *ddsddt, double *drplde, double *drpldt,double *stran, double *dstran, double time[2], double *dtime, double *temp,double *dtemp, double predef[1], double dpred[1], char cmname[80], int *ndi,int *nshr, int *ntens, int *nstatv, double *props, int *nprops, double coords[3],double *drot, double *pnewdt, double *celent, double *dfgrd0, double *dfgrd1,int *noel, int *npt, int *layer, int *kspt, int *kstep, int *kinc)
private

Pointer to the dynamically loaded umat-function (translated to C)

Definition at line 89 of file abaqususermaterial.h.

Referenced by giveFirstPKStressVector_3d(), giveRealStressVector_3d(), and initializeFrom().

void* oofem::AbaqusUserMaterial::umatobj
private

Dynamically loaded umat.

Definition at line 86 of file abaqususermaterial.h.

Referenced by initializeFrom(), and ~AbaqusUserMaterial().


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
Generated at Tue Jan 2 2018 20:07:33 for OOFEM by doxygen 1.8.11 written by Dimitri van Heesch, © 1997-2011