winklerpasternak.C

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/*
 *
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 *
 *
 *             OOFEM : Object Oriented Finite Element Code
 *
 *               Copyright (C) 1993 - 2014   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
 */

#include "winklerpasternak.h"
#include "../sm/Materials/structuralms.h"
#include "floatmatrix.h"
#include "gausspoint.h"
#include "classfactory.h"
#include "dynamicinputrecord.h"

namespace oofem {
REGISTER_Material(WinklerPasternakMaterial);

WinklerPasternakMaterial:: WinklerPasternakMaterial (int n, Domain* d): StructuralMaterial(n, d) 
{ }

WinklerPasternakMaterial::~WinklerPasternakMaterial()
{ }

IRResultType
WinklerPasternakMaterial :: initializeFrom(InputRecord *ir)
{
    IRResultType result;                // Required by IR_GIVE_FIELD macro

    IR_GIVE_FIELD(ir, c1, _IFT_WinklerPasternakMaterial_C1);
    if (ir->hasField(_IFT_WinklerPasternakMaterial_C2)) {
      // isotropic case
      IR_GIVE_FIELD(ir, c2x, _IFT_WinklerPasternakMaterial_C2);
      c2y = c2x;
    } else {
      IR_GIVE_FIELD(ir, c2x, _IFT_WinklerPasternakMaterial_C2X);
      IR_GIVE_FIELD(ir, c2y, _IFT_WinklerPasternakMaterial_C2Y);
    }

    return StructuralMaterial :: initializeFrom(ir);
}


void
WinklerPasternakMaterial :: giveInputRecord(DynamicInputRecord &input)
{
    StructuralMaterial :: giveInputRecord(input);

    input.setField(this->c1, _IFT_WinklerPasternakMaterial_C1);
    input.setField(this->c2x, _IFT_WinklerPasternakMaterial_C2X);
    input.setField(this->c2y, _IFT_WinklerPasternakMaterial_C2Y);
}


void 
WinklerPasternakMaterial::giveRealStressVector_2dPlateSubSoil(FloatArray &answer, GaussPoint *gp, const FloatArray &reducedE, TimeStep *tStep)
{
    FloatMatrix tangent;
    this->give2dPlateSubSoilStiffMtrx(tangent, ElasticStiffness, gp, tStep);
    answer.beProductOf(tangent, reducedE);

    StructuralMaterialStatus *status = static_cast< StructuralMaterialStatus * >( this->giveStatus(gp) );
    
    status->letTempStrainVectorBe(reducedE);
    status->letTempStressVectorBe(answer);
}


void
WinklerPasternakMaterial :: give2dPlateSubSoilStiffMtrx(FloatMatrix &answer, MatResponseMode mode, GaussPoint *gp, TimeStep *tStep)
{
    answer.resize(3, 3);
    answer.zero();

    answer.at(1, 1) = c1;
    answer.at(2, 2) = c2x;
    answer.at(3, 3) = c2y;
}


MaterialStatus *
WinklerPasternakMaterial :: CreateStatus(GaussPoint *gp) const
{
    return new StructuralMaterialStatus(1, this->giveDomain(), gp);
}


int
WinklerPasternakMaterial :: hasMaterialModeCapability(MaterialMode mode)
//
// returns whether receiver supports given mode
//
{
    return mode == _2dPlateSubSoil;
}

} // end namespace oofem