winklermodel.C

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/*
 *
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 *
 *
 *             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
 */
 
#include "winklermodel.h"
#include "sm/Materials/structuralms.h"
#include "floatmatrix.h"
#include "gausspoint.h"
#include "classfactory.h"
#include "dynamicinputrecord.h"
 
namespace oofem {
REGISTER_Material(WinklerMaterial);
 
WinklerMaterial:: WinklerMaterial (int n, Domain* d): StructuralMaterial(n, d) 
{ }
 
 
void
WinklerMaterial :: initializeFrom(InputRecord &ir)
{
    StructuralMaterial :: initializeFrom(ir);
 
    IR_GIVE_FIELD(ir, c1, _IFT_WinklerMaterial_C1);
    globalFromulation = true;
    int var=1;
    IR_GIVE_OPTIONAL_FIELD(ir, var,  _IFT_WinklerMaterial_globalFlag);
    globalFromulation=var;
}
 
 
void
WinklerMaterial :: giveInputRecord(DynamicInputRecord &input)
{
    StructuralMaterial :: giveInputRecord(input);
 
    input.setField(this->c1, _IFT_WinklerMaterial_C1);
}
 
 
FloatArrayF<3>
WinklerMaterial::giveRealStressVector_2dPlateSubSoil(const FloatArrayF<3> &reducedE, GaussPoint *gp, TimeStep *tStep) const
{
    auto tangent = this->give2dPlateSubSoilStiffMtrx(ElasticStiffness, gp, tStep);
    auto answer = dot(tangent, reducedE);
 
    auto status = static_cast< StructuralMaterialStatus * >( this->giveStatus(gp) );
    status->letTempStrainVectorBe(reducedE);
    status->letTempStressVectorBe(answer);
    return answer;
}
 
FloatArrayF<6>
WinklerMaterial::giveRealStressVector_3dBeamSubSoil(const FloatArrayF<6> &reducedE, GaussPoint *gp, TimeStep *tStep) const
{
    auto tangent = this->give3dBeamSubSoilStiffMtrx(ElasticStiffness, gp, tStep);
    auto answer = dot(tangent, reducedE);
 
    auto status = static_cast< StructuralMaterialStatus * >( this->giveStatus(gp) );
    status->letTempStrainVectorBe(reducedE);
    status->letTempStressVectorBe(answer);
    return answer;
}
 
 
FloatMatrixF<3,3>
WinklerMaterial :: give2dPlateSubSoilStiffMtrx(MatResponseMode mode, GaussPoint *gp, TimeStep *tStep) const
{
    FloatMatrixF<3,3> answer;
    answer.at(1, 1) = c1.at(1);
    //answer.at(2, 2) = c2;
    //answer.at(3, 3) = c2;
    return answer;
}
 
 
FloatMatrixF<6,6>
WinklerMaterial::give3dBeamSubSoilStiffMtrx(MatResponseMode mmode, GaussPoint *gp, TimeStep *tStep) const
{
    if ( this->c1.giveSize() == 6 ) {
        auto answer = diag(FloatArrayF<6>(this->c1));
 
        if (globalFromulation) {
            auto ei = static_cast<Beam3dSubsoilMaterialInterface*>(gp->giveElement()->giveInterface(Beam3dSubsoilMaterialInterfaceType));
            if (ei) {
                auto T = ei->B3SSMI_getUnknownsGtoLRotationMatrix();
                answer = unrotate(answer, T);
            } else {
                OOFEM_ERROR("Beam3dSubsoilMaterialInterface required from element");
            }
        }
        return answer;
    } else {
        OOFEM_ERROR ("C1 attribute size error (shouldequal to 6 for 3dBeamSubsoil mode)");
    }
}
 
 
std::unique_ptr<MaterialStatus> 
WinklerMaterial :: CreateStatus(GaussPoint *gp) const
{
    return std::make_unique<StructuralMaterialStatus>(gp);
}
 
 
bool
WinklerMaterial :: hasMaterialModeCapability(MaterialMode mode) const
//
// returns whether receiver supports given mode
//
{
    return mode == _2dPlateSubSoil || mode == _3dBeamSubSoil;
}
 
 
 
  
} // end namespace oofem