OOFEM  2.4
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oofem::IntMatCoulombContact Class Reference

This class represents a "simple" interface material which is linear elastic in the normal direction. More...

#include <intmatcoulombcontact.h>

+ Inheritance diagram for oofem::IntMatCoulombContact:
+ Collaboration diagram for oofem::IntMatCoulombContact:

Public Member Functions

 IntMatCoulombContact (int n, Domain *d)
 Constructor. More...
 
virtual ~IntMatCoulombContact ()
 Destructor. More...
 
virtual int hasNonLinearBehaviour ()
 Returns nonzero if receiver is non linear. More...
 
virtual const char * giveInputRecordName () const
 
virtual void giveEngTraction_3d (FloatArray &answer, GaussPoint *gp, const FloatArray &jump, TimeStep *tStep)
 
virtual void giveEngTraction_2d (FloatArray &answer, GaussPoint *gp, const FloatArray &jump, TimeStep *tStep)
 
virtual void giveEngTraction_1d (FloatArray &answer, GaussPoint *gp, const FloatArray &jump, TimeStep *tStep)
 
virtual void give3dStiffnessMatrix_Eng (FloatMatrix &answer, MatResponseMode rMode, GaussPoint *gp, TimeStep *tStep)
 
virtual void give2dStiffnessMatrix_Eng (FloatMatrix &answer, MatResponseMode rMode, GaussPoint *gp, TimeStep *tStep)
 
virtual void give1dStiffnessMatrix_Eng (FloatMatrix &answer, MatResponseMode rMode, GaussPoint *gp, TimeStep *tStep)
 
void giveGeneralStiffnessMatrix (FloatMatrix &answer, MatResponseMode rMode, GaussPoint *gp, TimeStep *tStep, int numSpaceDim)
 
void computeEngTraction (double &normalStress, FloatArray &shearStress, FloatArray &tempShearStressShift, double normalJump, const FloatArray &shearJump)
 
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 bool hasAnalyticalTangentStiffness () const
 Tells if the model has implemented analytical tangent stiffness. More...
 
virtual MaterialStatusCreateStatus (GaussPoint *gp) const
 Creates new copy of associated status and inserts it into given integration point. More...
 
- Public Member Functions inherited from oofem::StructuralInterfaceMaterial
 StructuralInterfaceMaterial (int n, Domain *d)
 Constructor. More...
 
virtual ~StructuralInterfaceMaterial ()
 Destructor. More...
 
virtual void giveFirstPKTraction_1d (FloatArray &answer, GaussPoint *gp, const FloatArray &jump, const FloatMatrix &reducedF, TimeStep *tStep)
 Computes the first Piola-Kirchoff traction vector for given total jump/gap and integration point. More...
 
virtual void giveFirstPKTraction_2d (FloatArray &answer, GaussPoint *gp, const FloatArray &jump, const FloatMatrix &reducedF, TimeStep *tStep)
 
virtual void giveFirstPKTraction_3d (FloatArray &answer, GaussPoint *gp, const FloatArray &jump, const FloatMatrix &F, TimeStep *tStep)
 
virtual void give1dStiffnessMatrix_dTdj (FloatMatrix &answer, MatResponseMode rMode, GaussPoint *gp, TimeStep *tStep)
 Gives the tangent: $ \frac{\partial T}{\partial j} $. More...
 
virtual void give2dStiffnessMatrix_dTdj (FloatMatrix &answer, MatResponseMode rMode, GaussPoint *gp, TimeStep *tStep)
 
virtual void give3dStiffnessMatrix_dTdj (FloatMatrix &answer, MatResponseMode rMode, GaussPoint *gp, TimeStep *tStep)
 
void give1dStiffnessMatrix_dTdj_Num (FloatMatrix &answer, GaussPoint *gp, TimeStep *tStep)
 
void give2dStiffnessMatrix_dTdj_Num (FloatMatrix &answer, GaussPoint *gp, TimeStep *tStep)
 
void give3dStiffnessMatrix_dTdj_Num (FloatMatrix &answer, GaussPoint *gp, TimeStep *tStep)
 
void give1dStiffnessMatrix_Eng_Num (FloatMatrix &answer, GaussPoint *gp, TimeStep *tStep)
 
void give2dStiffnessMatrix_Eng_Num (FloatMatrix &answer, GaussPoint *gp, TimeStep *tStep)
 
void give3dStiffnessMatrix_Eng_Num (FloatMatrix &answer, GaussPoint *gp, TimeStep *tStep)
 
virtual const char * giveClassName () const
 
virtual FloatArray giveInterfaceStrength ()
 
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::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 hasMaterialModeCapability (MaterialMode mode)
 Tests if material supports material mode. 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...
 
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...
 
- 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...
 

Protected Attributes

double kn
 
double stiffCoeff
 
double frictCoeff
 
double normalClearance
 Normal distance which needs to be closed when interface element should act in compression (distance is 0 by default). 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

- Public Attributes inherited from oofem::StructuralInterfaceMaterial
bool useNumericalTangent
 

Detailed Description

This class represents a "simple" interface material which is linear elastic in the normal direction.

It is similar to a Coulomb contact model in the sense that the maximum shear stress is bounded by the normal stress times the coefficient of friction.

Author
Milan Jirisek
Vit Smilauer
Jim Brouzoulis

Definition at line 92 of file intmatcoulombcontact.h.

Constructor & Destructor Documentation

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

Constructor.

Definition at line 47 of file intmatcoulombcontact.C.

oofem::IntMatCoulombContact::~IntMatCoulombContact ( )
virtual

Destructor.

Definition at line 49 of file intmatcoulombcontact.C.

Member Function Documentation

void oofem::IntMatCoulombContact::computeEngTraction ( double &  normalStress,
FloatArray shearStress,
FloatArray tempShearStressShift,
double  normalJump,
const FloatArray shearJump 
)
virtual MaterialStatus* oofem::IntMatCoulombContact::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 149 of file intmatcoulombcontact.h.

References oofem::FEMComponent::domain, and oofem::IntMatCoulombContactStatus::IntMatCoulombContactStatus().

virtual void oofem::IntMatCoulombContact::give1dStiffnessMatrix_Eng ( FloatMatrix answer,
MatResponseMode  rMode,
GaussPoint gp,
TimeStep tStep 
)
inlinevirtual
virtual void oofem::IntMatCoulombContact::give2dStiffnessMatrix_Eng ( FloatMatrix answer,
MatResponseMode  rMode,
GaussPoint gp,
TimeStep tStep 
)
inlinevirtual

Reimplemented from oofem::StructuralInterfaceMaterial.

Definition at line 126 of file intmatcoulombcontact.h.

virtual void oofem::IntMatCoulombContact::give3dStiffnessMatrix_Eng ( FloatMatrix answer,
MatResponseMode  rMode,
GaussPoint gp,
TimeStep tStep 
)
inlinevirtual

Reimplemented from oofem::StructuralInterfaceMaterial.

Definition at line 122 of file intmatcoulombcontact.h.

void oofem::IntMatCoulombContact::giveInputRecord ( DynamicInputRecord input)
virtual
virtual const char* oofem::IntMatCoulombContact::giveInputRecordName ( ) const
inlinevirtual
Returns
Input record name of the receiver.

Implements oofem::FEMComponent.

Definition at line 111 of file intmatcoulombcontact.h.

References _IFT_IntMatCoulombContact_Name, oofem::IntegrationPointStatus::gp, and oofem::StructuralInterfaceMaterialStatus::jump.

virtual bool oofem::IntMatCoulombContact::hasAnalyticalTangentStiffness ( ) const
inlinevirtual

Tells if the model has implemented analytical tangent stiffness.

If not, the tangent must be computed numerically.

Implements oofem::StructuralInterfaceMaterial.

Definition at line 147 of file intmatcoulombcontact.h.

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

Returns nonzero if receiver is non linear.

Reimplemented from oofem::Material.

Definition at line 110 of file intmatcoulombcontact.h.

IRResultType oofem::IntMatCoulombContact::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::StructuralInterfaceMaterial.

Definition at line 191 of file intmatcoulombcontact.C.

References _IFT_IntMatCoulombContact_frictCoeff, _IFT_IntMatCoulombContact_kn, _IFT_IntMatCoulombContact_normalClearance, _IFT_IntMatCoulombContact_stiffCoeff, frictCoeff, oofem::StructuralInterfaceMaterial::initializeFrom(), IR_GIVE_FIELD, IR_GIVE_OPTIONAL_FIELD, kn, normalClearance, and stiffCoeff.

Member Data Documentation

double oofem::IntMatCoulombContact::frictCoeff
protected

Definition at line 100 of file intmatcoulombcontact.h.

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

double oofem::IntMatCoulombContact::kn
protected
double oofem::IntMatCoulombContact::normalClearance
protected

Normal distance which needs to be closed when interface element should act in compression (distance is 0 by default).

Definition at line 102 of file intmatcoulombcontact.h.

Referenced by computeEngTraction(), giveGeneralStiffnessMatrix(), giveInputRecord(), and initializeFrom().

double oofem::IntMatCoulombContact::stiffCoeff
protected

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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