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

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

#ifndef _VONMISES_H
#define _VONMISES_H

#include "cmodel.h"
#include "elasplas.h"

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

class cVonMises : public cElastoPlastic
{
 protected:
  double  _Qtrial;               // Trial equivalent stress
  double *_Ep,   *_IteEp;        // Plastic deformation
  double  _Alpha, _IteAlpha;     // Internal variable (strain space)

 public:
         cVonMises      ( cIntPt *, cMaterial * );
        ~cVonMises      ( void );
  void   Init           ( void );
  void   Update         ( void ); 
  int    Stress         ( double *, double * );
  void   ModifyCMatrix  ( double ** );
  void   GetPlasticVar  ( double *, double *  );
  void   SetPlasticVar  ( double *, double *  );
  void   InternalVar    ( double *, double *  );
  void   PlasticModuli  ( double *, double ** );
  double YieldFunction  ( double *, double *  );
  void   YieldGrad      ( double *, double *, double *, double * );
  void   YieldHessian   ( double *, double *, double ** );
  int    GetNumPrintScls( void );
  void   GetPrintSclLabs( char ** );
  void   GetPrintSclVals( double *, double * );

 private:
  void   GetMatData     ( double *, double *  );
  void   VecTensor3D    ( double *, sTensor * );
};

#endif

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