intmatphasefield.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 program is free software; you can redistribute it and/or modify
 *  it under the terms of the GNU General Public License as published by
 *  the Free Software Foundation; either version 2 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 General Public License for more details.
 *
 *  You should have received a copy of the GNU General Public License
 *  along with this program; if not, write to the Free Software
 *  Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
 */
/*
 *
 *
 *  Author: Jim Brouzoulis
 */

#ifndef intmatphasefield
#define intmatphasefield

#include "structuralinterfacematerialphf.h"
#include "structuralinterfacematerialstatus.h"


#define _IFT_IntMatPhaseField_Name "intmatphf"
#define _IFT_IntMatPhaseField_kn "k"
#define _IFT_IntMatPhaseField_gc "gc"



namespace oofem {

class IntMatPhaseFieldStatus : public StructuralInterfaceMaterialStatus
{
public:
    IntMatPhaseFieldStatus(int n, Domain * d, GaussPoint * g);
    virtual ~IntMatPhaseFieldStatus(){};
    
    double tempDamage;
    double giveDamage() { return tempDamage; }
    
    
    double tempDrivingEnergy;
    double drivingEnergy;
    double giveTempDrivingEnergy() { return tempDrivingEnergy; }
    double giveDrivingEnergy() { return drivingEnergy; }
    void letTempDrivingEnergyBe(double val) { this->tempDrivingEnergy = val; }
     
    virtual const char *giveClassName() const { return "IntMatPhaseFieldStatus"; }
    
    virtual void initTempStatus();
    virtual void updateYourself(TimeStep *tStep);

};


class IntMatPhaseField : public StructuralInterfaceMaterialPhF{
public:
    IntMatPhaseField(int n, Domain * d);
    virtual ~IntMatPhaseField();

    virtual int hasNonLinearBehaviour()   { return 1; }

    virtual int hasMaterialModeCapability(MaterialMode mode);
    virtual const char *giveClassName() const { return "IntMatPhaseField"; }
    virtual const char *giveInputRecordName() const { return _IFT_IntMatPhaseField_Name; }

    virtual void giveEngTraction_3d(FloatArray &answer, GaussPoint *gp, const FloatArray &jump, const double damage, TimeStep *tStep);
    virtual void give3dStiffnessMatrix_Eng(FloatMatrix &answer,  MatResponseMode mode, GaussPoint *gp, TimeStep *tStep);
    virtual void giveTangents(FloatMatrix &jj, FloatMatrix &jd, FloatMatrix &dj, FloatMatrix &dd, MatResponseMode mode, GaussPoint *gp, TimeStep *tStep);
     


    virtual IRResultType initializeFrom(InputRecord *ir);
    virtual void giveInputRecord(DynamicInputRecord &input);

    //virtual MaterialStatus *CreateStatus(GaussPoint *gp) const { return new StructuralInterfaceMaterialStatus(1, domain, gp); }
    virtual MaterialStatus *CreateStatus(GaussPoint *gp) const { return new IntMatPhaseFieldStatus(1, domain, gp); }; 
    
    virtual bool hasAnalyticalTangentStiffness() const { return true; };

    
    virtual double giveDrivingForce(GaussPoint *gp);
    virtual double giveDrivingForcePrime(GaussPoint *gp);
    //double compute_fPrime(const double d);
    double compute_g(const double d);
    double compute_gPrime(const double d);
    double compute_gBis(const double d);
    
protected:
  double k;
    double Gc;
};

} /* namespace oofem */
#endif