maxwellChM.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 maxwellchm_h
#define maxwellchm_h

#include "rheoChM.h"

namespace oofem {
class MaxwellChainMaterialStatus : public RheoChainMaterialStatus
{
public:
    MaxwellChainMaterialStatus(int n, Domain * d, GaussPoint * g, int nunits);
    virtual ~MaxwellChainMaterialStatus() { }

    virtual void printOutputAt(FILE *file, TimeStep *tStep);

    virtual void initTempStatus();
    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);

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



class MaxwellChainMaterial : public RheoChainMaterial
{
public:
    MaxwellChainMaterial(int n, Domain * d);
    virtual ~MaxwellChainMaterial() { }

    // overload thesse function such that computation of hidden vars can be done after the computation of stress
    virtual void giveRealStressVector(FloatArray &answer, GaussPoint *gp, const FloatArray &reducedStrain, TimeStep *tStep);
    void computeHiddenVars(GaussPoint *gp, TimeStep *tStep);

    // identification and auxiliary functions
    virtual int hasNonLinearBehaviour() { return 0; }
    virtual const char *giveClassName() const { return "MaxwellChainMaterial"; }
    virtual IRResultType initializeFrom(InputRecord *ir);

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

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

    virtual MaterialStatus *CreateStatus(GaussPoint *gp) const;

protected:
    virtual int hasIncrementalShrinkageFormulation() { return 0; }
    virtual void computeCharCoefficients(FloatArray &answer, double tPrime, GaussPoint *gp, TimeStep *tStep);

    virtual double giveEModulus(GaussPoint *gp, TimeStep *tStep);
    LinearElasticMaterial *giveLinearElasticMaterial();
};
} // end namespace oofem
#endif // maxwellchm_h