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

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

#ifndef _DAMAGE_H
#define _DAMAGE_H

#include "cmodel.h"

// -------------------------------------------------------------------------
// Damage constitutive model class:

class cDamage : public cConstModel
{
 protected:
  int          _iNumStressCmp;          // Num. of stress components
  double       _IncE[3];                // Incremental Damaged Young's modulus
  double       _IteE[3];                // Iteractive Damaged Young's modulus
  double      *_IteStress;              // Iteractive stress vector
  double      *_IteStrain;              // Iteractive strain vector
  sPrincStr    _PrincStrain;            // Principal  strain tensor
  sPrincStrVec _PrincStrainVec;         // Principal  strain direction  
  double       _StrainAngle;            // Principal  strain direction angle
  double     **_IncDMatrix;             // Incremental Compliance Matrix
  double     **_IteDMatrix;             // Iteractive Compliance Matrix

 public:
                 cDamage         ( cIntPt *, cMaterial * );
                ~cDamage         ( void );
          void   Init            ( void );
          void   Update          ( void );
          int    Stress          ( double *, double * );
          void   ModifyCMatrix   ( double ** );
 
 virtual double TensileDamage    ( double ) = 0;
 virtual double CompressiveDamage( double ) = 0;

 private:
         void   CalculateDamage  ( void );
         double GetE0            ( void );
};

#endif

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