dustmat.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 dustmat_h
#define dustmat_h
 
#include "floatarray.h"
#include "floatmatrix.h"
#include "sm/Materials/structuralms.h"
#include "sm/Materials/structuralmaterial.h"
#include "sm/Materials/isolinearelasticmaterial.h"


#define _IFT_DustMaterial_Name "dustmat"
#define _IFT_DustMaterial_alpha "alpha"
#define _IFT_DustMaterial_beta "beta"
#define _IFT_DustMaterial_lambda "lambda"
#define _IFT_DustMaterial_theta "theta"
#define _IFT_DustMaterial_ft "ft"
#define _IFT_DustMaterial_hardeningType "hardeningtype"
#define _IFT_DustMaterial_mStiff "mstiff"
#define _IFT_DustMaterial_rEll "rell"
#define _IFT_DustMaterial_x0 "x0"
#define _IFT_DustMaterial_newtonTol "newtontol"
#define _IFT_DustMaterial_newtonIter "newtoniter"
#define _IFT_DustMaterial_wHard "whard"
#define _IFT_DustMaterial_dHard "dhard"
 
namespace oofem {
class DustMaterialStatus : public StructuralMaterialStatus
{
public:
    enum stateFlagValues {
        DM_Elastic,
        DM_Unloading,
        DM_Yielding1,
        DM_Yielding2,
        DM_Yielding3
    };
 
protected:
    FloatArrayF<6> plasticStrain;
    FloatArrayF<6> tempPlasticStrain;

    double q = 0;
    double tempQ = 0;

    double bulkModulus = 0;
    double shearModulus = 0;
    double youngsModulus = 0;

    int stateFlag = 0;
    int tempStateFlag = 0;
 
public:
    DustMaterialStatus(GaussPoint * gp, double q0);
 
    void initTempStatus() override;
    void updateYourself(TimeStep *tStep) override;
    void printOutputAt(FILE *file, TimeStep *tStep) const override;
 
    void saveContext(DataStream &stream, ContextMode mode) override;
    void restoreContext(DataStream &stream, ContextMode mode) override;
 
    const char *giveClassName() const override { return "DustMaterialStatus"; }

    const FloatArrayF<6> &givePlasticStrain() const { return plasticStrain; }
    double giveVolumetricPlasticStrain() const { return ( plasticStrain.at(1) + plasticStrain.at(2) + plasticStrain.at(3) ) / 3.0; }
    double giveQ() const { return q; }
    int giveStateFlag() const { return stateFlag; }

    const FloatArrayF<6> &giveTempPlasticStrain() const { return tempPlasticStrain; }
    double giveTempQ() const { return tempQ; }
    int giveTempStateFlag() const { return tempStateFlag; }

    void letTempPlasticStrainBe(const FloatArray &v) { tempPlasticStrain = v; }
    void letTempQBe(double v) { tempQ = v; }
    void letTempStateFlagBe(int v) { tempStateFlag = v; }

    void letPlasticStrainBe(const FloatArrayF<6> &v) { plasticStrain = v; }
    void letQBe(double v) { q = v; }

    void setBulkModulus(double v) { bulkModulus = v; }
    void setShearModulus(double v) { shearModulus = v; }
    void setYoungsModulus(double v) { youngsModulus = v; }
    double giveBulkModulus() const { return bulkModulus; }
    double giveShearModulus() const { return shearModulus; }
    double giveYoungsModulus() const { return youngsModulus; }
};

class DustMaterial : public StructuralMaterial
{
protected:
    IsotropicLinearElasticMaterial LEMaterial;

    double alpha = 0.;
    double beta = 0.;
    double lambda = 0.;
    double theta = 0.;
    double ft = 0.;
    double rEll = 0.;
    int hardeningType = 0;
    double mStiff = 0.;
    double x0 = 0.;
    double q0 = 0.;
    double wHard = 0.;
    double dHard = 0.;
    double newtonTol = 0.;
    int newtonIter = 0;

    double functionFe(double i1) const;
    double functionFeDI1(double i1) const;
    double functionFeDI1DI1(double i1) const;
    double functionFc(double rho, double i1, double q) const;
    double functionX(double q) const;
    double functionXDQ(double q) const;
    double yieldFunction1(double rho, double i1) const;
    double yieldFunction2(double rho, double i1, double q) const;
    double yieldFunction3(double i1) const;
    void solveQ0(double &answer) const;
    void computeAndSetBulkAndShearModuli(double &bulkModulus, double &shearModulus, GaussPoint *gp) const;
    void performStressReturn(GaussPoint *gp, const FloatArrayF<6> &strain) const;
    FloatArrayF<6> computePlastStrainDirM1(const FloatArrayF<6> &stressDeviator, double rho, double i1, double q) const;
    FloatArrayF<6> computePlastStrainDirM2(const FloatArrayF<6> &stressDeviator, double rho, double i1, double q) const;
    FloatArrayF<6> computePlastStrainDirM3(const FloatArrayF<6> &stressDeviator, double rho, double i1, double q) const;
    double functionH(double q, double tempQ) const;
    double functionHDQ(double tempQ) const;
    double functionI1(double q, double tempQ, double i1, double bulkModulus) const;
    double functionI1DQ(double tempQ, double bulkModulus) const;
    void performF1return(double i1, double rho, GaussPoint *gp) const;
    void performF2return(double i1, double rho, GaussPoint *gp) const;
    void computeQFromPlastVolEps(double &answer, double q, double deltaVolumetricPlasticStrain) const;
    double computeDeltaGamma2(double tempQ, double q, double i1, double bulkModulus) const;
    double computeDeltaGamma2DQ(double tempQ, double q, double i1, double bulkModulus) const;
    double fTempR2(double tempQ, double q, double i1, double rho, double bulkModulus, double shearModulus) const;
 
public:
    DustMaterial(int n, Domain * d);
 
    void initializeFrom(InputRecord &ir) override;
 
    const char *giveClassName() const override { return "DustMaterial"; }
    const char *giveInputRecordName() const override { return _IFT_DustMaterial_Name; }
 
    FloatArrayF<6> giveRealStressVector_3d(const FloatArrayF<6> &strain, GaussPoint *gp, TimeStep *tStep) const override;
 
    FloatMatrixF<6,6> give3dMaterialStiffnessMatrix(MatResponseMode mmode, GaussPoint *gp, TimeStep *tStep) const override;
 
    int setIPValue(const FloatArray &value, GaussPoint *gp, InternalStateType type) override;
 
    int giveIPValue(FloatArray &answer, GaussPoint *gp, InternalStateType type, TimeStep *tStep) override;
 
    bool isCharacteristicMtrxSymmetric(MatResponseMode rMode) const override { return false; }
 
    FloatArrayF<6> giveThermalDilatationVector(GaussPoint *gp, TimeStep *tStep) const override
    {
        return LEMaterial.giveThermalDilatationVector(gp, tStep);
    }
 
    std::unique_ptr<MaterialStatus> CreateStatus(GaussPoint *gp) const override;
 
    double giveQ0() const { return q0; }
};
} // end namespace oofem
#endif // dustmat_h