frcfcm.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 frcfcm_h
#define frcfcm_h
 
 
#include "concretefcm.h"


#define _IFT_FRCFCM_Name "frcfcm"
#define _IFT_FRCFCM_Vf "vf"
#define _IFT_FRCFCM_Lf "lf"
#define _IFT_FRCFCM_Df "df"
#define _IFT_FRCFCM_Ef "ef"
#define _IFT_FRCFCM_nuf "nuf"
#define _IFT_FRCFCM_Gfib "gfib"
#define _IFT_FRCFCM_kfib "kfib"
#define _IFT_FRCFCM_tau_0 "tau_0"
#define _IFT_FRCFCM_b0 "b0"
#define _IFT_FRCFCM_b1 "b1"
#define _IFT_FRCFCM_b2 "b2"
#define _IFT_FRCFCM_b3 "b3"
#define _IFT_FRCFCM_f "f"
#define _IFT_FRCFCM_M "m"
#define _IFT_FRCFCM_orientationVector "fibreorientationvector"
#define _IFT_FRCFCM_fssType "fsstype"
#define _IFT_FRCFCM_fDamType "fdamtype"
#define _IFT_FRCFCM_fiberType "fibertype"
#define _IFT_FRCFCM_gammaCrack "gammacrack"
#define _IFT_FRCFCM_computeCrackSpacing "computecrackspacing"
#define _IFT_FRCFCM_fibreActivationOpening "fibreactivationopening"
#define _IFT_FRCFCM_dw0 "dw0"
#define _IFT_FRCFCM_dw1 "dw1"

 
namespace oofem {
class FRCFCMStatus : public ConcreteFCMStatus
{
protected:
    double damage = 0.;
    double tempDamage = 0.;
 
public:
    FRCFCMStatus(GaussPoint *g);

    double giveDamage() const { return damage; }
    double giveTempDamage() const { return tempDamage; }
    void setTempDamage(double newDamage) { tempDamage = newDamage; }
 
    void printOutputAt(FILE *file, TimeStep *tStep) const override;
 
    const char *giveClassName() const override { return "FRCFCMStatus"; }
 
    void initTempStatus() override;
    void updateYourself(TimeStep *tStep) override;
 
    void saveContext(DataStream &stream, ContextMode mode) override;
    void restoreContext(DataStream &stream, ContextMode mode) override;
};
 

class FRCFCM : public ConcreteFCM
{
public:
    FRCFCM(int n, Domain *d);
 
    void initializeFrom(InputRecord &ir) override;
 
    std::unique_ptr<MaterialStatus> CreateStatus(GaussPoint *gp) const override { return std::make_unique<FRCFCMStatus>(gp); }
 
    int giveIPValue(FloatArray &answer, GaussPoint *gp, InternalStateType type, TimeStep *tStep) override;
 
protected:
    double tau_0 = 0.;

    double b0 = 0.;
    double b1 = 0., b2 = 0., b3 = 0.;

    double f = 0.;

    double g = 0.;

    double Vf = 0.;

    double Lf = 0.;

    double Df = 0.;

    double Ef = 0.;

    double Gfib = 0.;

    double kfib = 0.;

    double w_star = 0.;

    double eta = 0.;

    double gammaCrackFail = 0.;

    double minDamageOpening = 0.;

    int M = 0;

    FloatArray orientationVector;

    double fibreActivationOpening = 0.;

    double dw0 = 0., dw1 = 0.;
    bool smoothen = false;

    enum FiberShearStrengthType { FSS_NONE, FSS_Sajdlova, FSS_Kabele, FSS_Havlasek, FSS_Unknown };
    FiberShearStrengthType fiberShearStrengthType = FSS_Unknown;

    enum FiberDamageType { FDAM_NONE, FDAM_GammaCrackLin, FDAM_GammaCrackExp, FDAM_Unknown };
    FiberDamageType fiberDamageType = FDAM_Unknown;

    enum FiberType { FT_CAF, FT_SAF, FT_SRF, FT_SRF2D, FT_Unknown };
    FiberType fiberType = FT_Unknown;
 
    double giveCrackingModulus(MatResponseMode rMode, GaussPoint *gp, TimeStep *tStep, int i) const override;
    virtual double computeFiberBond(double w) const;
    double giveNormalCrackingStress(GaussPoint *gp, TimeStep *tStep, double eps_cr, int i) const override;
    virtual double computeStressInFibersInCracked(GaussPoint *gp, TimeStep *tStep, double eps_cr, int i) const;
    double computeEffectiveShearModulus(GaussPoint *gp, TimeStep *tStep, int i) const override;
    double computeD2ModulusForCrack(GaussPoint *gp, TimeStep *tStep, int icrack) const override;
    virtual double estimateD2ModulusForCrack(GaussPoint *gp, TimeStep *tStep, int icrack) const;
    double maxShearStress(GaussPoint *gp, TimeStep *tStep, int i) const override;
    virtual double computeTempDamage(GaussPoint *gp, TimeStep *tStep) const;
    virtual double computeCrackSpacing();
    virtual double computeCrackFibreAngle(GaussPoint *gp, int i) const;
    void checkSnapBack(GaussPoint *gp, TimeStep *tStep, int crack) const override { }
    bool isStrengthExceeded(const FloatMatrix &base, GaussPoint *gp, TimeStep *tStep, int iCrack, double trialStress) const override;
    double computeShearStiffnessRedistributionFactor(GaussPoint *gp, TimeStep *tStep, int ithCrackPlane, int jthCrackDirection) const override;
    double computeOverallElasticStiffness(GaussPoint *gp, TimeStep *tStep) const override;
    double computeOverallElasticShearModulus(GaussPoint *gp, TimeStep *tStep) const override { return this->computeOverallElasticStiffness(gp, tStep) / ( 2. * ( 1. + linearElasticMaterial.givePoissonsRatio() ) ); }
};
} // end namespace oofem
#endif // frcfcm_h