mooneyrivlinmaterial.h

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/*
 *
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 *               ##   ##  ##   ##  ##      ##      ## ### ##
 *              ##   ##  ##   ##  ####    ####    ##  #  ##
 *             ##   ##  ##   ##  ##      ##      ##     ##
 *            ##   ##  ##   ##  ##      ##      ##     ##
 *            #####    #####   ##      ######  ##     ##
 *
 *
 *             OOFEM : Object Oriented Finite Element Code
 *
 *               Copyright (C) 1993 - 2025   Borek Patzak
 *
 *
 *
 *       Czech Technical University, Faculty of Civil Engineering,
 *   Department of Structural Mechanics, 166 29 Prague, Czech Republic
 *
 *  This library is free software; you can redistribute it and/or
 *  modify it under the terms of the GNU Lesser General Public
 *  License as published by the Free Software Foundation; either
 *  version 2.1 of the License, or (at your option) any later version.
 *
 *  This program 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
 *  Lesser General Public License for more details.
 *
 *  You should have received a copy of the GNU Lesser General Public
 *  License along with this library; if not, write to the Free Software
 *  Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301  USA
 */
 
#ifndef mooneyrivlincompressiblematerial_h
#define mooneyrivlincompressiblematerial_h
 
#include "sm/Materials/structuralmaterial.h"
#include "sm/Materials/structuralms.h"
#include "basehyperelasticmaterial.h"
 


#define _IFT_MooneyRivlinCompressibleMaterial_Name "mooneyrivlincompresssiblemat"
#define _IFT_MooneyRivlinCompressibleMaterial_c1 "c1"
#define _IFT_MooneyRivlinCompressibleMaterial_c2 "c2"
 
namespace oofem {
  class MooneyRivlinCompressibleMaterial : public StructuralMaterial, public BaseHyperElasticMaterial
{
protected:
    // Material parameters
    double C1;
    double C2;
 
 
public:
    MooneyRivlinCompressibleMaterial(int n, Domain *d);
    
    void initializeFrom(InputRecord &ir) override;
 
    FloatMatrixF<6,6> give3dMaterialStiffnessMatrix(MatResponseMode mode, GaussPoint *gp, TimeStep *tStep) const override { OOFEM_ERROR("not implemented, this material is designed for large strains only"); }
 
    FloatArrayF<6> giveRealStressVector_3d(const FloatArrayF<6> &strain, GaussPoint *gp, TimeStep *tStep) const override{ OOFEM_ERROR("not implemented, this material is designed for large strains only"); }
    FloatMatrixF<9,9> give3dMaterialStiffnessMatrix_dPdF(MatResponseMode,
                             GaussPoint * gp,
                             TimeStep * tStep) const override;
    
    FloatArrayF<9> giveFirstPKStressVector_3d(const FloatArrayF<9> &vF, GaussPoint *gp, TimeStep *tStep) const override;
 
    MaterialStatus *CreateStatus(GaussPoint *gp) const override;
 
    const char *giveInputRecordName() const override { return _IFT_MooneyRivlinCompressibleMaterial_Name; }
    const char *giveClassName() const override { return "MooneyRivlinCompressibleMaterial"; }
 
    
};
 
} // end namespace oofem
#endif