steel1.h

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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
 */
 
#ifndef steel1_h
#define steel1_h
 
#include "perfectlyplasticmaterial.h"
#include "sm/Materials/isolinearelasticmaterial.h"


#define _IFT_Steel1_Name "steel1"
#define _IFT_Steel1_ry "ry"
 
namespace oofem {
class Domain;
class Steel1 : public PerfectlyPlasticMaterial
{
public:
    Steel1(int n, Domain * d);
 
    void initializeFrom(InputRecord &ir) override;
    const char *giveInputRecordName() const override { return _IFT_Steel1_Name; }
    const char *giveClassName() const override { return "Steel1MaterialClass"; }
    void updateIfFailure(GaussPoint *gp, FloatArray *, FloatArray *) const override { }
    bool hasCastingTimeSupport() const override { return true; }
 
protected:
    //
    // yield(YC-like functions) and loading(LC-like functions) criteria specific section
    //
    double      computeYCValueAt(GaussPoint *, FloatArray *, FloatArray *) const override;
    FloatArray *GiveYCStressGradient(GaussPoint *, FloatArray *, FloatArray *) const override;
    FloatArray *GiveLCStressGradient(GaussPoint *, FloatArray *, FloatArray *) const override;
    FloatArray *GiveYCPlasticStrainGradient(GaussPoint *, FloatArray *, FloatArray *) const override;
    FloatArray *GiveLCPlasticStrainGradient(GaussPoint *, FloatArray *, FloatArray *) const override;
    void        updateTempYC(GaussPoint *, FloatArray *, FloatArray *) const override { }
    void        updateTempLC(GaussPoint *, FloatArray *, FloatArray *) const override { }
    // update during computation
 
    // auxiliary function
    double computeJ2InvariantAt(FloatArray *) const;
};
} // end namespace oofem
#endif // steel1_h