J:/Tecgraf/prj/femoop/trunk/elc/elcdsh3d.h

// -------------------------------------------------------------------------
// ElcDSh3D.h - This header file contains the data structure for generic
//              ( free form ) degenerated shell finite element classes.
//              It is called degenerated because its shape can be
//              obtained by degeneration of a solid element. It is
//              called 3D because no previous integration is made
//              along the thickness direction, thus requiring a
//              three-dimensional integration scheme.
//              
// Remarks:
//             
//-------------------------------------------------------------------------
//
// $Author: evandro $
// $Revision: 1.2 $
// $Date: 1999/04/12 14:48:47 $
// $State: Exp $
//
// -------------------------------------------------------------------------

#ifndef _ELCDSH3D_H 
#define _ELCDSH3D_H 

#include "gbldefs.h"
#include "elcdsh.h"
#include "shape.h"


// -------------------------------------------------------------------------
// Definition of a 3-D integrated Degenerated Shell Element Class:

class cElcDegShell3D : public cElcDegShell
{
 public:
                    cElcDegShell3D    ( eShapeType );
  virtual          ~cElcDegShell3D    ( void );
           void     CreateElement     ( eShapeType );
           double   GetVol            ( void );
           double   GetArea           ( void );
           void     Stiffness         ( double * ) ;
           void     CalcIntPtStress   ( void );  
           void     CalcIntPtStress   ( cIntPt *, sTensor * );  
           void     NodeStress        ( sTensor * );  
            int     InternalForce     ( double * );
           void     TRMatrix          ( void );
           void     BMatrix           ( int, int, sNatCoord *, double **,
                                        double *, sDerivNat *, double **);
           void     DerivDisplNat     ( sNatCoord *, double *, sDerivNat *,
                                        double **);
                                         
};

#endif

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