isodamagemodel.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 isodamagemodel_h
#define isodamagemodel_h
 
// this turns on or off a bunch of internal variables
// that allow tracing the distribution of dissipated energy
// (can be turned off if such information is not needed)
#define keep_track_of_dissipated_energy
 
#include "material.h"
#include "sm/Materials/linearelasticmaterial.h"
#include "sm/Materials/structuralmaterial.h"
#include "sm/Materials/structuralms.h"


#define _IFT_IsotropicDamageMaterial_talpha "talpha"
#define _IFT_IsotropicDamageMaterial_maxOmega "maxomega"
#define _IFT_IsotropicDamageMaterial_permstrain "ps"
 
namespace oofem {
class GaussPoint;

class IsotropicDamageMaterialStatus : public StructuralMaterialStatus
{
protected:
    double kappa = 0.;
    double tempKappa = 0.;
    double damage = 0.;
    double tempDamage = 0.;
    double le = 0.;
    double crack_angle = -1000.0;
    FloatArrayF<3> crackVector;
 
#ifdef keep_track_of_dissipated_energy
    double stressWork = 0.;
    double tempStressWork = 0.;
    double dissWork = 0.;
    double tempDissWork = 0.;
#endif
 
public:
    IsotropicDamageMaterialStatus(GaussPoint *g);
 
    void printOutputAt(FILE *file, TimeStep *tStep) const override;

    double giveKappa() const { return kappa; }
    double giveTempKappa() const { return tempKappa; }
    void setTempKappa(double newKappa) { tempKappa = newKappa; }
    double giveDamage() const { return damage; }
    double giveTempDamage() const { return tempDamage; }
    void setTempDamage(double newDamage) { tempDamage = newDamage; }

    double giveLe() const { return le; }
    void setLe(double ls) { le = ls; }
    double giveCrackAngle() const { return crack_angle; }
    void setCrackAngle(double ca) { crack_angle = ca; }
    FloatArrayF<3> giveCrackVector() const { return crackVector * damage; }
    void setCrackVector(const FloatArrayF<3> &cv) { crackVector = cv; }
 
#ifdef keep_track_of_dissipated_energy
    double giveStressWork() const { return stressWork; }
    double giveTempStressWork() const { return tempStressWork; }
    void setTempStressWork(double w) { tempStressWork = w; }
    double giveDissWork() const { return dissWork; }
    double giveTempDissWork() const { return tempDissWork; }
    void setTempDissWork(double w) { tempDissWork = w; }
    void computeWork(GaussPoint *gp);
#endif
 
    const char *giveClassName() const override { return "IsotropicDamageMaterialModelStatus"; }
 
    void initTempStatus() override;
    void updateYourself(TimeStep *tStep) override;
 
    void saveContext(DataStream &stream, ContextMode mode) override;
    void restoreContext(DataStream &stream, ContextMode mode) override;
};
 

class IsotropicDamageMaterial : public StructuralMaterial
{
protected:
    double tempDillatCoeff = 0.;

    double maxOmega = 0.999999;

    int permStrain = 0;

    LinearElasticMaterial *linearElasticMaterial = nullptr;
    enum loaUnloCriterium { idm_strainLevelCR, idm_damageLevelCR } llcriteria = idm_strainLevelCR;
 
public:
    IsotropicDamageMaterial(int n, Domain *d);
    virtual ~IsotropicDamageMaterial();
 
    bool hasMaterialModeCapability(MaterialMode mode) const override;
    const char *giveClassName() const override { return "IsotropicDamageMaterial"; }

    LinearElasticMaterial *giveLinearElasticMaterial() const { return linearElasticMaterial; }
 
    FloatMatrixF<6,6> give3dMaterialStiffnessMatrix(MatResponseMode mode, GaussPoint *gp, TimeStep *tStep) const override;
 
    void giveRealStressVector(FloatArray &answer, GaussPoint *gp,
                              const FloatArray &reducedStrain, TimeStep *tStep) const override;
 
    FloatArrayF<6> giveRealStressVector_3d(const FloatArrayF<6> &strain, GaussPoint *gp, TimeStep *tStep) const override
    {
        FloatArray answer;
        const_cast<IsotropicDamageMaterial*>(this)->giveRealStressVector(answer, gp, strain, tStep);
        return answer;
    }
    FloatArrayF<4> giveRealStressVector_PlaneStrain( const FloatArrayF<4> &strain, GaussPoint *gp, TimeStep *tStep) const override
    {
        FloatArray answer;
        const_cast<IsotropicDamageMaterial*>(this)->giveRealStressVector(answer, gp, strain, tStep);
        return answer;
    }
    FloatArray giveRealStressVector_StressControl(const FloatArray &strain, const IntArray &strainControl, GaussPoint *gp, TimeStep *tStep) const override
    {
        FloatArray answer;
        const_cast<IsotropicDamageMaterial*>(this)->giveRealStressVector(answer, gp, strain, tStep);
        return answer;
    }
    FloatArrayF<3> giveRealStressVector_PlaneStress(const FloatArrayF<3> &strain, GaussPoint *gp, TimeStep *tStep) const override
    {
        FloatArray answer;
        const_cast<IsotropicDamageMaterial*>(this)->giveRealStressVector(answer, gp, strain, tStep);
        return answer;
    }
    FloatArrayF<1> giveRealStressVector_1d(const FloatArrayF<1> &strain, GaussPoint *gp, TimeStep *tStep) const override
    {
        FloatArray answer;
        const_cast<IsotropicDamageMaterial*>(this)->giveRealStressVector(answer, gp, strain, tStep);
        return answer;
    }
 
    int giveIPValue(FloatArray &answer, GaussPoint *gp, InternalStateType type, TimeStep *tStep) override;
 
    FloatArrayF<6> giveThermalDilatationVector(GaussPoint *gp, TimeStep *tStep) const override;
    virtual double evaluatePermanentStrain(double kappa, double omega) const { return 0.; }

    double give(int aProperty, GaussPoint *gp) const override;
    virtual double computeEquivalentStrain(const FloatArray &strain, GaussPoint *gp, TimeStep *tStep) const = 0;
    virtual void computeEta(FloatArray &answer, const FloatArray &strain, GaussPoint *gp, TimeStep *tStep) const { OOFEM_ERROR("not implemented"); }
    virtual double computeDamageParam(double kappa, const FloatArray &strain, GaussPoint *gp) const = 0;
 
    void initializeFrom(InputRecord &ir) override;
    void giveInputRecord(DynamicInputRecord &input) override;
 
    std::unique_ptr<MaterialStatus> CreateStatus(GaussPoint *gp) const override { return std::make_unique<IsotropicDamageMaterialStatus>(gp); }
 
    FloatMatrixF<1,1> give1dStressStiffMtrx(MatResponseMode mmode, GaussPoint *gp,
                                            TimeStep *tStep) const override;
  
    void saveContext(DataStream &stream, ContextMode mode) override;
    void restoreContext(DataStream &stream, ContextMode mode) override;
    
protected:
    virtual void initDamaged(double kappa, FloatArray &totalStrainVector, GaussPoint *gp) const { }

    virtual double damageFunctionPrime(double kappa, GaussPoint *gp) const {
        OOFEM_ERROR("not implemented");
    }
 
    FloatMatrixF<3,3> givePlaneStressStiffMtrx(MatResponseMode mmode, GaussPoint *gp,TimeStep *tStep) const override;
    FloatMatrixF<4,4> givePlaneStrainStiffMtrx(MatResponseMode mmode, GaussPoint *gp, TimeStep *tStep) const override;
 
};
} // end namespace oofem
#endif // isodamagemodel_h