stressvector.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 stressvector_h
#define stressvector_h
 
#include "stressstrainbasevector.h"
 
namespace oofem {
class StrainVector;
class FloatArray;
class FloatMatrix;

class OOFEM_EXPORT StressVector : public StressStrainBaseVector
{
public:
    StressVector(MaterialMode);
    StressVector(const FloatArray &, MaterialMode);
    ~StressVector() { }
    void computePrincipalValues(FloatArray &answer) const override;
    void computePrincipalValDir(FloatArray &answer, FloatMatrix &dir) const override;
    void computeDeviatoricVolumetricSplit(StressVector &dev, double &vol) const;

    void computeDeviatoricVolumetricSum(StressVector &answer, double vol) const;
    void printYourself() const override;
    double computeFirstInvariant() const;
    double computeSecondInvariant() const;
    double computeThirdInvariant() const;

    void computeAllThreeHWCoordinates(double &xsi, double &rho, double &theta) const;

    double computeFirstCoordinate() const;
    double computeSecondCoordinate() const;
    double computeThirdCoordinate() const;

    void applyElasticCompliance(StrainVector &strain,
                                const double EModulus,
                                const double nu) const;
    void applyDeviatoricElasticCompliance(StrainVector &strain,
                                          const double EModulus,
                                          const double nu) const;
    void applyDeviatoricElasticCompliance(StrainVector &strain,
                                          const double GModulus) const;
    double computeStressNorm() const;
 
protected:
    void giveTranformationMtrx(FloatMatrix &answer, const FloatMatrix &base,
                               int transpose = 0) const override;
};
} // end namespace oofem
#endif // stressvector_h