J:/Tecgraf/prj/femoop/trunk/cmod/pvnmises.h

// --------------------------------------------------------------------------
//
// PvnMises.h - This header file contains the public data structure 
//              definitions for the Polar von Mises constitutive 
//              model class within FEMOOP.
//
// --------------------------------------------------------------------------
//
// $Author: joaquim $
// $Revision: 1.2 $
// $Date: 1998/02/16 20:21:11 $
// $State: Exp $
//
// --------------------------------------------------------------------------

#ifndef _POLVM_H
#define _POLVM_H

#include "cmodel.h"


// -------------------------------------------------------------------------
// Polar von Mises constitutive model class:

class cPolarVonMises : public cConstModel
{
 protected:
  double  *_pEp;                   // Plastic deformation
  double  *_pIteEp;                // Iteration plastic deformation
  double   _dGamma;
  double   _dIteGamma;
  double   _dDeltaGamma;
  double  *_pdFdSig;
  double **_pPMatrix;
  double   _dJ2;
  int      _iDimTensor;

 public:
         cPolarVonMises   ( cIntPt *, cMaterial * );
        ~cPolarVonMises   ( void );
  void   Init             ( void );
  void   Update           ( void );
  int    Stress           ( double *, double * );
  void   ModifyCMatrix    ( double ** );
  int    GetNumPrintScls  ( void );
  void   GetPrintSclLabs  ( char ** );
  void   GetPrintSclVals  ( double *, double * );

 private:
  double YieldFunction    ( double * );
  void   YieldGrad        ( double * );
};

#endif

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