equilibmodel.h

/*************************************************************************************
 * MechSys - A C++ library to simulate (Continuum) Mechanical Systems                *
 * Copyright (C) 2005 Dorival de Moraes Pedroso <dorival.pedroso at gmail.com>       *
 * Copyright (C) 2005 Raul Dario Durand Farfan  <raul.durand at gmail.com>           *
 *                                                                                   *
 * This file is part of MechSys.                                                     *
 *                                                                                   *
 * MechSys is free software; you can redistribute it and/or modify it under the      *
 * terms of the GNU General Public License as published by the Free Software         *
 * Foundation; either version 2 of the License, or (at your option) any later        *
 * version.                                                                          *
 *                                                                                   *
 * MechSys is distributed in the hope that it will be useful, but WITHOUT ANY        *
 * WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A   *
 * PARTICULAR PURPOSE. See the GNU General Public License for more details.          *
 *                                                                                   *
 * You should have received a copy of the GNU General Public License along with      *
 * MechSys; if not, write to the Free Software Foundation, Inc., 51 Franklin Street, *
 * Fifth Floor, Boston, MA 02110-1301, USA                                           *
 *************************************************************************************/

#ifndef MECHSYS_EQUILIBMODEL_H
#define MECHSYS_EQUILIBMODEL_H

#ifdef HAVE_CONFIG_H
  #include "config.h"
#else
  #ifndef REAL
    #define REAL double
  #endif
#endif

#include <map>
#include <string>

#include "tensors/tensors.h"
#include "util/string.h"
#include "util/array.h"
#include "numerical/integschemesctes.h"

using Tensors::Tensor2;
using Tensors::Tensor4;

class EquilibModel
{
public:
    // Constructor
    EquilibModel() : _sig(0.0), _eps(0.0) {}

    // Destructor
    virtual ~EquilibModel() {}

    // Methods
    virtual String Name         () const =0;
    virtual void   TgStiffness  (Tensors::Tensor4 & D) const =0;
    virtual void   Actualize    (Tensor2 const & DSig, Tensor2 & DEps) =0;
    virtual void   StressUpdate (Tensor2 const & DEps, Tensor2 & DSig) =0;
    virtual void   BackupState  () =0;
    virtual void   RestoreState () =0;

    // Access methods
    Tensor2 const & Sig() const { return _sig; }
    Tensor2 const & Eps() const { return _eps; }
    virtual int  nInternalStateValues()                              const =0;
    virtual void InternalStateValues (Array<REAL>   & IntStateVals ) const =0;
    virtual void InternalStateNames  (Array<String> & IntStateNames) const =0;

    // Static
    static void SetIntegSchemesCtes(IntegSchemesCtes const & ISC) { _isc=ISC; }

protected:
    // Data
    Tensor2 _sig;
    Tensor2 _eps;
    Tensor2 _sig_bkp;
    Tensor2 _eps_bkp;

    // Data (static)
    static IntegSchemesCtes _isc; 

}; // class Model




IntegSchemesCtes EquilibModel::_isc;




// Define a pointer to a function that makes (allocate) a new equilibmodel
typedef EquilibModel * (*EquilibModelMakerPtr)(Array<REAL> const & Prms, Array<REAL> const & IniData);

// Typdef of the array map that contains all the pointers to the functions that makes equilibmodels
typedef std::map<String, EquilibModelMakerPtr, std::less<String> > EquilibModelFactory_t;

// Instantiate the array map that contains all the pointers to the functions that makes equilibmodels
EquilibModelFactory_t EquilibModelFactory;

// Allocate a new equilibmodel according to a string giving the name of the equilibmodel
EquilibModel * AllocEquilibModel(String const & Name, Array<REAL> const & Prms, Array<REAL> const & IniData) // {{{
{
    EquilibModelMakerPtr ptr=NULL;
    ptr = EquilibModelFactory[Name];
    if (ptr==NULL)
        throw new Fatal(_("FEM::AllocEquilibModel: There is no < %s > implemented in this library"), Name.c_str());
    return (*ptr)(Prms, IniData);
} // }}}

#endif // MECHSYS_EQUILIBMODEL_H

// vim:fdm=marker

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