concretefcm.h

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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 concretefcm_h
#define concretefcm_h
 
#include "sm/Materials/fcm.h"
#include "randommaterialext.h"


#define _IFT_ConcreteFCM_Name "concretefcm"
#define _IFT_ConcreteFCM_softType "softtype"
#define _IFT_ConcreteFCM_shearType "sheartype"
#define _IFT_ConcreteFCM_shearStrengthType "shearstrengthtype"
#define _IFT_ConcreteFCM_gf "gf"
#define _IFT_ConcreteFCM_ft "ft"
#define _IFT_ConcreteFCM_beta "beta"
#define _IFT_ConcreteFCM_sf "sf"
#define _IFT_ConcreteFCM_sf_numer "sf_numer"
#define _IFT_ConcreteFCM_fc "fc"
#define _IFT_ConcreteFCM_ag "ag"
#define _IFT_ConcreteFCM_lengthScale "lengthscale"
#define _IFT_ConcreteFCM_soft_w "soft_w"
#define _IFT_ConcreteFCM_soft_function_w "soft(w)"
#define _IFT_ConcreteFCM_soft_eps "soft_eps"
#define _IFT_ConcreteFCM_soft_function_eps "soft(eps)"
#define _IFT_ConcreteFCM_beta_w "beta_w"
#define _IFT_ConcreteFCM_beta_function "beta(w)"
#define _IFT_ConcreteFCM_H "h"
#define _IFT_ConcreteFCM_eps_f "eps_f"
 
namespace oofem {
class ConcreteFCMStatus : public FCMMaterialStatus, public RandomMaterialStatusExtensionInterface
{
public:
    ConcreteFCMStatus(GaussPoint *g);
 
    void printOutputAt(FILE *file, TimeStep *tStep) const override;
 
    const char *giveClassName() const override { return "ConcreteFCMStatus"; }
 
    void initTempStatus() override;
    void updateYourself(TimeStep *tStep) override;
 
    Interface *giveInterface(InterfaceType it) override;
 
    void saveContext(DataStream &stream, ContextMode mode) override;
    void restoreContext(DataStream &stream, ContextMode mode) override;
};
 

class ConcreteFCM : public FCMMaterial, public RandomMaterialExtensionInterface
{
public:
    ConcreteFCM(int n, Domain *d);
 
    void initializeFrom(InputRecord &ir) override;
    const char *giveClassName() const override { return "ConcreteFCM"; }
    const char *giveInputRecordName() const override { return _IFT_ConcreteFCM_Name; }
 
    std::unique_ptr<MaterialStatus> CreateStatus(GaussPoint *gp) const override { return std::make_unique<ConcreteFCMStatus>(gp); }
 
    double give(int aProperty, GaussPoint *gp) const override;
 
    int giveIPValue(FloatArray &answer, GaussPoint *gp, InternalStateType type, TimeStep *tStep) override;
 
    MaterialStatus* giveStatus(GaussPoint *gp) const override;
 
protected:
    double Gf = 0.;
    double Ft = 0.;
    double beta = 0.;
    double sf = 0.;
    double sf_numer = 0.;
 
    // 3 parameters for collins aggregate interlock:
    double fc = 0.;
    double ag = 0.;
    double lengthScale = 0.;

    FloatArray soft_w, soft_function_w;
    FloatArray soft_eps, soft_function_eps;
    FloatArray beta_w, beta_function;

    double H = 0.;
    double eps_f = 0.;
 
    double giveTensileStrength(GaussPoint *gp, TimeStep *tStep) const override { return this->give(ft_strength, gp); }
    virtual double giveFractureEnergy(GaussPoint *gp, TimeStep *tStep) const { return this->give(gf_ID, gp); }
    double giveCrackingModulus(MatResponseMode rMode, GaussPoint *gp, TimeStep *tStep, int i) const override;
    double giveCrackingModulusInTension(MatResponseMode rMode, GaussPoint *gp, TimeStep *tStep, int i) const override;
    double computeEffectiveShearModulus(GaussPoint *gp, TimeStep *tStep, int i) const override;
    double computeD2ModulusForCrack(GaussPoint *gp, TimeStep *tStep, int icrack) const override;
    double computeNumerD2ModulusForCrack(GaussPoint *gp, TimeStep *tStep, int icrack) const override;
    double giveNormalCrackingStress(GaussPoint *gp, TimeStep *tStep, double eps_cr, int i) const override;
    double maxShearStress(GaussPoint *gp, TimeStep *tStep, int i) const override;

    virtual double computeResidualTensileStrength(GaussPoint *gp, TimeStep *tStep) const;
 
    void checkSnapBack(GaussPoint *gp, TimeStep *tStep, int crack) const override;

    enum SofteningType { ST_NONE, ST_Exponential, ST_Linear, ST_Hordijk, ST_UserDefinedCrack, ST_LinearHardeningStrain, ST_UserDefinedStrain, ST_Unknown };
    SofteningType softType = ST_NONE;

    enum ShearRetentionType { SHR_NONE, SHR_Const_ShearRetFactor, SHR_Const_ShearFactorCoeff, SHR_UserDefined_ShearRetFactor, SHR_Unknown };
    ShearRetentionType shearType = SHR_Unknown;

    enum ShearStrengthType { SHS_NONE, SHS_Const_Ft, SHS_Collins_Interlock, SHS_Residual_Ft, SHS_Unknown };
    ShearStrengthType shearStrengthType = SHS_Unknown;
};
} // end namespace oofem
#endif // concretefcm_h