rcsd.h

Go to the documentation of this file.

/*
 *
 *                 #####    #####   ######  ######  ###   ###
 *               ##   ##  ##   ##  ##      ##      ## ### ##
 *              ##   ##  ##   ##  ####    ####    ##  #  ##
 *             ##   ##  ##   ##  ##      ##      ##     ##
 *            ##   ##  ##   ##  ##      ##      ##     ##
 *            #####    #####   ##      ######  ##     ##
 *
 *
 *             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
 */
 
//   ************************************************************************************
//   *** CLASS ROTATING SMEARED CRACK MODEL WITH TRANSITION TO SCALAR DAMAGE ************
//   ************************************************************************************
 
#ifndef rcsd_h
#define rcsd_h
 
#include "rcm2.h"


#define _IFT_RCSDMaterial_Name "rcsd"
#define _IFT_RCSDMaterial_sdtransitioncoeff "sdtransitioncoeff"
 
namespace oofem {
#define rcsd_Omega 300
#define pscm_SDTransitionCoeff 306
#define RCSD_DAMAGE_EPS 1.e-4
 
class GaussPoint;

class RCSDMaterialStatus : public RCM2MaterialStatus
{
public:
    enum rcsdMode { rcMode, sdMode };
 
protected:
    double maxEquivStrain = 0., tempMaxEquivStrain = 0.;
    double damageCoeff = 1., tempDamageCoeff = 1.;
    FloatMatrix Ds0;
    double damageStiffCoeff = 0., depsf = 0., depsp = 0.;
    rcsdMode mode = rcMode, tempMode = rcMode;
 
public:
    RCSDMaterialStatus(GaussPoint * g);
 
    void printOutputAt(FILE *file, TimeStep *tStep) const override;
 
    double giveTempMaxEquivStrain() const { return tempMaxEquivStrain; }
    void setTempMaxEquivStrain(double val) { tempMaxEquivStrain = val; }
    double giveDamageStiffCoeff() const { return damageStiffCoeff; }
    void setDamageStiffCoeff(double val) { damageStiffCoeff = val; }
    double giveTempDamageCoeff() const { return tempDamageCoeff; }
    void setTempDamageCoeff(double val) { tempDamageCoeff = val; }
    const FloatMatrix *giveDs0Matrix() { return & Ds0; }
    void setDs0Matrix(FloatMatrix &mtrx) { Ds0 = mtrx; }
    double giveDamageEpsfCoeff() const { return depsf; }
    void setDamageEpsfCoeff(double val) { depsf = val; }
    double giveDamageEpspCoeff() const { return depsp; }
    void setDamageEpspCoeff(double val) { depsp = val; }
 
    rcsdMode giveTempMode() const { return tempMode; }
    void setTempMode(rcsdMode mode) { tempMode = mode; }
 
    // query for non-tem variables (usefull for postprocessing)
    double giveMaxEquivStrain() const { return maxEquivStrain; }
    double giveDamageCoeff() const { return damageCoeff; }
 
    rcsdMode giveMode() const { return mode; }
 
    const char *giveClassName() const override { return "RCSDMaterialStatus"; }
 
    void initTempStatus() override;
    void updateYourself(TimeStep *tStep) override;
 
    void saveContext(DataStream &stream, ContextMode mode) override;
    void restoreContext(DataStream &stream, ContextMode mode) override;
};
 

class RCSDMaterial : public RCM2Material
{
protected:
    double SDTransitionCoeff = 0.;
 
public:
    RCSDMaterial(int n, Domain * d);
    virtual ~RCSDMaterial();
 
    const char *giveInputRecordName() const override { return _IFT_RCSDMaterial_Name; }
    const char *giveClassName() const override { return "RCSDMaterial"; }
 
    void initializeFrom(InputRecord &ir) override;
 
    double give(int aProperty, GaussPoint *gp) const override;
 
    void giveRealStressVector(FloatArray &answer, GaussPoint *gp,
                              const FloatArray &, TimeStep *tStep) const override;
 
    std::unique_ptr<MaterialStatus> CreateStatus(GaussPoint *gp) const override { return std::make_unique<RCSDMaterialStatus>(gp); }
 
protected:
    double computeCurrEquivStrain(GaussPoint *, const FloatArray &, double, TimeStep *) const;
    // two functions used to initialize and updating temporary variables in
    // gp's status. These variables are used to control process, when
    // we try to find equilibrium state.
 
    void giveEffectiveMaterialStiffnessMatrix(FloatMatrix &answer,
                                              MatResponseMode rMode,
                                              GaussPoint *gp, TimeStep *tStep) const override;
 
    double computeDamageCoeff(double, double, double, double) const;
    double giveCrackingModulus(MatResponseMode rMode, GaussPoint *gp,
                               double crackStrain, int i) const override;
    //double giveShearRetentionFactor(GaussPoint* gp, double eps_cr, int i) override;
    double giveNormalCrackingStress(GaussPoint *gp, double eps_cr, int i) const override;
    double giveMinCrackStrainsForFullyOpenCrack(GaussPoint *gp, int i) const override;
    //void updateStatusForNewCrack( GaussPoint*, int, double) override;
    double computeStrength(GaussPoint *gp, double) const override;
    int checkSizeLimit(GaussPoint *gp, double) const override;
};
} // end namespace oofem
#endif // rcsd_h