structuralinterfacematerial.h

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/*
 *
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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 structuralinterfacematerial_h
#define structuralinterfacematerial_h
 
#include "material.h"
#include "floatarray.h"
#include "floatmatrix.h"
#include "matconst.h"
#include "matstatus.h"
#include "floatarrayf.h"
#include "floatmatrixf.h"


 
#define _IFT_StructuralInterfaceMaterial_useNumericalTangent "use_num_tangent"

 
namespace oofem {
class GaussPoint;

class StructuralInterfaceMaterial : public Material
{
public:
    StructuralInterfaceMaterial(int n, Domain * d);

    virtual double giveFirstPKTraction_1d(double jump, double reducedF, GaussPoint *gp, TimeStep *tStep) const;
    virtual FloatArrayF<2> giveFirstPKTraction_2d(const FloatArrayF<2> &jump, const FloatMatrixF<2,2> &reducedF, GaussPoint *gp, TimeStep *tStep) const;
    virtual FloatArrayF<3> giveFirstPKTraction_3d(const FloatArrayF<3> &jump, const FloatMatrixF<3,3> &F, GaussPoint *gp, TimeStep *tStep) const
    { OOFEM_ERROR("not implemented ");  }
 
    virtual double giveEngTraction_1d(double jump, GaussPoint *gp, TimeStep *tStep) const;
    virtual FloatArrayF<2> giveEngTraction_2d(const FloatArrayF<2> &jump, GaussPoint *gp, TimeStep *tStep) const;
    virtual FloatArrayF<3> giveEngTraction_3d(const FloatArrayF<3> &jump, GaussPoint *gp, TimeStep *tStep) const;

    virtual FloatMatrixF<1,1> give1dStiffnessMatrix_dTdj(MatResponseMode rMode, GaussPoint *gp, TimeStep *tStep) const;
    virtual FloatMatrixF<2,2> give2dStiffnessMatrix_dTdj(MatResponseMode rMode, GaussPoint *gp, TimeStep *tStep) const;
    virtual FloatMatrixF<3,3> give3dStiffnessMatrix_dTdj(MatResponseMode rMode, GaussPoint *gp, TimeStep *tStep) const;
 
    virtual FloatMatrixF<1,1> give1dStiffnessMatrix_Eng(MatResponseMode rMode, GaussPoint *gp, TimeStep *tStep) const;
    virtual FloatMatrixF<2,2> give2dStiffnessMatrix_Eng(MatResponseMode rMode, GaussPoint *gp, TimeStep *tStep) const;
    virtual FloatMatrixF<3,3> give3dStiffnessMatrix_Eng(MatResponseMode rMode, GaussPoint *gp, TimeStep *tStep) const;
 
    FloatMatrixF<1,1> give1dStiffnessMatrix_dTdj_Num(GaussPoint *gp, TimeStep *tStep) const;
    FloatMatrixF<2,2> give2dStiffnessMatrix_dTdj_Num(GaussPoint *gp, TimeStep *tStep) const;
    FloatMatrixF<3,3> give3dStiffnessMatrix_dTdj_Num(GaussPoint *gp, TimeStep *tStep) const;
 
    FloatMatrixF<1,1> give1dStiffnessMatrix_Eng_Num(GaussPoint *gp, TimeStep *tStep) const;
    FloatMatrixF<2,2> give2dStiffnessMatrix_Eng_Num(GaussPoint *gp, TimeStep *tStep) const;
    FloatMatrixF<3,3> give3dStiffnessMatrix_Eng_Num(GaussPoint *gp, TimeStep *tStep) const;

    virtual bool hasAnalyticalTangentStiffness() const = 0;
 
    // identification and auxiliary functions
    void initializeFrom(InputRecord &ir) override;
    void giveInputRecord(DynamicInputRecord &input) override;
 
    virtual FloatArray giveInterfaceStrength() { return Vec1(0); }
 
    //virtual int setIPValue(const FloatArray &value, GaussPoint *gp, InternalStateType type);
    int giveIPValue(FloatArray &answer, GaussPoint *gp, InternalStateType type, TimeStep *tStep) override;
 
    bool useNumericalTangent; 
};
} // end namespace oofem
#endif // structuralinterfacematerial_h