mazarsmodel.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 mazarsmodel_h
#define mazarsmodel_h
 
#include "sm/Materials/linearelasticmaterial.h"
#include "sm/Materials/ConcreteMaterials/idm1.h"
#include "sm/Materials/structuralms.h"


#define _IFT_MazarsMaterial_Name "mazarsmodel"
#define _IFT_MazarsMaterial_version "version"
#define _IFT_MazarsMaterial_e0 "e0"
#define _IFT_MazarsMaterial_ac "ac"
#define _IFT_MazarsMaterial_bc "bc"
#define _IFT_MazarsMaterial_beta "beta"
#define _IFT_MazarsMaterial_at "at"
#define _IFT_MazarsMaterial_bt "bt"
#define _IFT_MazarsMaterial_ef "ef"
#define _IFT_MazarsMaterial_r "r"
#define _IFT_MazarsMaterial_hreft "hreft"
#define _IFT_MazarsMaterial_hrefc "hrefc"
 
namespace oofem {
class MazarsMaterialStatus : public IsotropicDamageMaterial1Status
{
protected:
    double lec = 0.;
 
public:
    MazarsMaterialStatus(GaussPoint * g);

    double giveLec() { return lec; }
    void setLec(double ls) { lec = ls; }
 
    const char *giveClassName() const override { return "MazarsMaterialStatus"; }
 
    void saveContext(DataStream &stream, ContextMode mode) override;
    void restoreContext(DataStream &stream, ContextMode mode) override;
};
 

class MazarsMaterial : public IsotropicDamageMaterial1
{
protected:
    double E = 0., nu = 0.;
    double At = 0., Bt = 0., Ac = 0., Bc = 0.;
    double hReft = 0., hRefc = 0.;
    double beta = 0.;

    enum mazarsModelVariant { maz_original, maz_modTension } modelVersion;
 
public:
    MazarsMaterial(int n, Domain * d);
 
    const char *giveInputRecordName() const override { return _IFT_MazarsMaterial_Name; }
    const char *giveClassName() const override { return "MazarsMaterial"; }
 
    void initializeFrom(InputRecord &ir) override;
 
    double computeEquivalentStrain(const FloatArray &strain, GaussPoint *gp, TimeStep *tStep) const override;
    double computeDamageParam(double kappa, const FloatArray &strain, GaussPoint *gp) const override;
 
    std::unique_ptr<MaterialStatus> CreateStatus(GaussPoint *gp) const override { return std::make_unique<MazarsMaterialStatus>(gp); }
 
protected:
    void initDamaged(double kappa, FloatArray &totalStrainVector, GaussPoint *gp) const override;
    /*
     * Computes elastic stiffness for normal stress components.
     * @param answer Result of size (3,3).
     * @param mode Determines the MatResponseMode.
     * @param gp Integration point.
     * @param tStep Time step.
     */
    /*
     * void giveNormalElasticStiffnessMatrix(FloatMatrix &answer,
     *                                    MatResponseMode rMode,
     *                                    GaussPoint *gp, TimeStep *tStep);
     */
 
    int giveNumberOfSpatialDimensions(GaussPoint *gp) const;
    void giveNormalBlockOfElasticCompliance(FloatMatrix &answer, GaussPoint *gp) const;
    double computeGt(double kappa, GaussPoint *gp) const;
    double computeGc(double kappa, GaussPoint *gp) const;
};
} // end namespace oofem
#endif // mazarsmodel_h