stressstrainbasevector.h

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/*
 *
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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 stressstrainbasevector_h
#define stressstrainbasevector_h
 
#include "floatarray.h"
#include "materialmode.h"
 
namespace oofem {
typedef MaterialMode StressStrainMatMode;
class OOFEM_EXPORT StressStrainBaseVector : public FloatArray
{
protected:
    StressStrainMatMode mode;
 
public:
    StressStrainBaseVector(MaterialMode);
    StressStrainBaseVector(const FloatArray &, MaterialMode);
    ~StressStrainBaseVector() { }

    StressStrainBaseVector &operator = ( const StressStrainBaseVector & );

    MaterialMode giveStressStrainMode() const { return ( MaterialMode ) mode; }

    void letStressStrainModeBe(const MaterialMode newMode);

    void convertToFullForm(FloatArray &fullform) const;
    void convertFromFullForm(const FloatArray &reducedform, MaterialMode mode);

    virtual void computePrincipalValues(FloatArray &answer) const = 0;
    virtual void computePrincipalValDir(FloatArray &answer, FloatMatrix &dir) const = 0;
    void transformTo(StressStrainBaseVector &answer, const FloatMatrix &base, int transpose = 0) const;
 
    contextIOResultType storeYourself(DataStream &stream);
    contextIOResultType restoreYourself(DataStream &stream);

    double computeVolumetricPart() const;
 
protected:
    virtual void giveTranformationMtrx(FloatMatrix &answer, const FloatMatrix &base,
                                       int transpose = 0) const = 0;
};
} // end namespace oofem
#endif // stressstrainbasevector_h