ElasticIsotropicPlaneStrain2D.h

// -*-c++-*-
//----------------------------------------------------------------------------
//  XC program; finite element analysis code
//  for structural analysis and design.
//
//  Copyright (C)  Luis C. Pérez Tato
//
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//  developed by the  «Pacific earthquake engineering research center».
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//----------------------------------------------------------------------------
/* ****************************************************************** **
**    OpenSees - Open System for Earthquake Engineering Simulation    **
**          Pacific Earthquake Engineering Research Center            **
**                                                                    **
**                                                                    **
** (C) Copyright 1999, The Regents of the University of California    **
** All Rights Reserved.                                               **
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** Commercial use of this program without express permission of the   **
** University of California, Berkeley, is strictly prohibited.  See   **
** file 'COPYRIGHT'  in main directory for information on usage and   **
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**                                                                    **
** Developed by:                                                      **
**   Frank McKenna (fmckenna@ce.berkeley.edu)                         **
**   Gregory L. Fenves (fenves@ce.berkeley.edu)                       **
**   Filip C. Filippou (filippou@ce.berkeley.edu)                     **
**                                                                    **
** ****************************************************************** */
                                                                        
// $Revision: 1.5 $
// $Date: 2002/12/05 22:49:09 $
// $Source: /usr/local/cvs/OpenSees/SRC/material/nD/elastic_isotropic/ElasticIsotropicPlaneStrain2D.h,v $
                                                                        
                                                                        
#ifndef ElasticIsotropicPlaneStrain2D_h
#define ElasticIsotropicPlaneStrain2D_h

// File: ~/material/ElasticIsotropicPlaneStrain2D.h
//
// Written: MHS
// Created: Feb 2000
// Revision: A
//
// Description: 
//
// What: "@(#) ElasticIsotropicPlaneStrain2D.h, revA"

#include "ElasticIsotropic2D.h"

namespace XC {
//
class ElasticIsotropicPlaneStrain2D: public ElasticIsotropic2D
  {
  private:
    static Vector sigma; 
  public:
    ElasticIsotropicPlaneStrain2D(int tag, double E, double nu, double rho);
    ElasticIsotropicPlaneStrain2D(int tag= 0);

    const Matrix &getTangent(void) const;
    const Matrix &getInitialTangent(void) const;

    const Vector &getStress(void) const;
    
    int commitState (void);
    int revertToLastCommit (void);
    
    NDMaterial *getCopy(void) const;
    const std::string &getType(void) const;
  };
} // end of XC namespace


#endif