b3solidmat.h

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/*
 *
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 *               ##   ##  ##   ##  ##      ##      ## ### ##
 *              ##   ##  ##   ##  ####    ####    ##  #  ##
 *             ##   ##  ##   ##  ##      ##      ##     ##
 *            ##   ##  ##   ##  ##      ##      ##     ##
 *            #####    #####   ##      ######  ##     ##
 *
 *
 *             OOFEM : Object Oriented Finite Element Code
 *
 *               Copyright (C) 1993 - 2013   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 b3solidmat_h
#define b3solidmat_h

#include "kelvinChM.h"


#define _IFT_B3SolidMaterial_Name "b3solidmat"
#define _IFT_B3SolidMaterial_emodulimode "emodulimode"
#define _IFT_B3SolidMaterial_microprestress "microprestress"
#define _IFT_B3SolidMaterial_c0 "c0"
#define _IFT_B3SolidMaterial_c1 "c1"
#define _IFT_B3SolidMaterial_ksh "ksh"
#define _IFT_B3SolidMaterial_finalhumidity "finalhumidity"
#define _IFT_B3SolidMaterial_initialhumidity "initialhumidity"
#define _IFT_B3SolidMaterial_lambda0 "lambda0"


namespace oofem {
class B3SolidMaterialStatus : public KelvinChainMaterialStatus
{
protected:
    double microprestress_old;
    double microprestress_new;

public:
    B3SolidMaterialStatus(int n, Domain *d, GaussPoint *g, int nunits);
    virtual ~B3SolidMaterialStatus() { }

    virtual void updateYourself(TimeStep *tStep);

    virtual contextIOResultType saveContext(DataStream &stream, ContextMode mode, void *obj = NULL);
    virtual contextIOResultType restoreContext(DataStream &stream, ContextMode mode, void *obj = NULL);

    double giveMPS() const { return microprestress_old; }
    void setMPS(double src) { microprestress_new = src; }

    // definition
    virtual const char *giveClassName() const { return "B3SolidMaterialStatus"; }
};


class B3SolidMaterial : public KelvinChainMaterial
{
protected:
    double t0;
    double w, E28, q1, q2, q3, q4, q5; // predicted data

    double lambda0;

    enum b3ShModeType { B3_NoShrinkage, B3_AverageShrinkage, B3_PointShrinkage } shMode;
    double EpsSinf, kt, ks, vs, hum;
    double es0, r, rprime, at;
    // Additional parameters for sorption isotherm (used to compute relative humidity from water content)
    double w_h;    
    double n;      
    double a;      
    double EspringVal; 

    int EmoduliMode;
    int MicroPrestress;
    double c0;  
    double c1;  
    double tS0; 
    double kSh; 


public:
    B3SolidMaterial(int n, Domain *d) : KelvinChainMaterial(n, d) {
        shMode = B3_NoShrinkage;
    }
    virtual ~B3SolidMaterial() { }

    virtual void giveRealStressVector(FloatArray &answer, GaussPoint *gp,
                                      const FloatArray &reducedStrain, TimeStep *tStep);
    //virtual void updateYourself(GaussPoint *gp, TimeStep *tStep);

    virtual void giveShrinkageStrainVector(FloatArray &answer, GaussPoint *gp, TimeStep *tStep, ValueModeType mode);

    virtual const char *giveClassName() const { return "B3SolidMaterial"; }
    virtual const char *giveInputRecordName() const { return _IFT_B3SolidMaterial_Name; }
    virtual IRResultType initializeFrom(InputRecord *ir);

    virtual MaterialStatus *CreateStatus(GaussPoint *gp) const;

    virtual double computeCreepFunction(double t, double t_prime, GaussPoint *gp, TimeStep *tStep);

protected:
    virtual int hasIncrementalShrinkageFormulation() { return 1; }

    void computeTotalAverageShrinkageStrainVector(FloatArray &answer, GaussPoint *gp, TimeStep *tStep);

    void computePointShrinkageStrainVector(FloatArray &answer, GaussPoint *gp, TimeStep *tStep);

    void predictParametersFrom(double, double, double, double, double, double, double);

    double computeSolidifiedVolume(TimeStep *tStep);

    double computeFlowTermViscosity(GaussPoint *gp, TimeStep *tStep);

    double inverse_sorption_isotherm(double w);

    virtual void computeCharCoefficients(FloatArray &answer, double tPrime, GaussPoint *gp, TimeStep *tStep);

    virtual void updateEparModuli(double tPrime, GaussPoint *gp, TimeStep *tStep);

    virtual void computeCharTimes();

    virtual double giveEModulus(GaussPoint *gp, TimeStep *tStep);

    virtual void giveEigenStrainVector(FloatArray &answer, GaussPoint *gp, TimeStep *tStep, ValueModeType mode);

    double computeMicroPrestress(GaussPoint *gp, TimeStep *tStep, int option);

    double giveInitMicroPrestress(void);

    double giveHumidity(GaussPoint *gp, TimeStep *tStep);

    double giveHumidityIncrement(GaussPoint *gp, TimeStep *tStep);
};
} // end namespace oofem
#endif // b3solidmat_h