structural3delement.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 structural3delement_h
#define structural3delement_h
 
#include "sm/Elements/nlstructuralelement.h"
 
 
#define _IFT_Structural3DElement_materialCoordinateSystem "matcs" 
 
namespace oofem {
class GaussPoint;
class FloatMatrix;
class FloatArray;
class IntArray;
class ParamKey;

class Structural3DElement : public NLStructuralElement
{
protected:
    bool matRotation;
    static ParamKey IPK_Structural3DElement_materialCoordinateSystem; 
public:
    Structural3DElement(int n, Domain *d);
    virtual ~Structural3DElement() { }
 
    void initializeFrom(InputRecord &ir, int priority) override;
 
    MaterialMode giveMaterialMode() override;
    int computeNumberOfDofs() override;
    void giveDofManDofIDMask(int inode, IntArray &answer) const override;
    double computeVolumeAround(GaussPoint *gp) override;
 
    double giveCharacteristicLength(const FloatArray &normalToCrackPlane) override;
 
    void giveMaterialOrientationAt(FloatArray &x, FloatArray &y, FloatArray &z, const FloatArray &lcoords);
    void computeStressVector(FloatArray &answer, const FloatArray &strain, GaussPoint *gp, TimeStep *tStep) override;
    void computeConstitutiveMatrixAt(FloatMatrix &answer, MatResponseMode rMode, GaussPoint *gp, TimeStep *tStep) override;
    void computeConstitutiveMatrix_dPdF_At(FloatMatrix &answer, MatResponseMode rMode, GaussPoint *gp, TimeStep *tStep) override;
 
    void computeInitialStressMatrix(FloatMatrix &answer, TimeStep *tStep) override;
 
protected:
    void computeBmatrixAt(GaussPoint *gp, FloatMatrix &answer, int lowerIndx = 1, int upperIndx = ALL_STRAINS) override;
    void computeBHmatrixAt(GaussPoint *gp, FloatMatrix &answer) override;
    void computeGaussPoints() override;
 
    // Edge support
    void giveEdgeDofMapping(IntArray &answer, int iEdge) const override;
    double computeEdgeVolumeAround(GaussPoint *gp, int iEdge) override;
    int computeLoadLEToLRotationMatrix(FloatMatrix &answer, int iEdge, GaussPoint *gp) override;
 
    int testElementExtension(ElementExtension ext) override
    { return ( ( ( ext == Element_EdgeLoadSupport ) || ( ext == Element_SurfaceLoadSupport ) ) ? 1 : 0 ); }
 
    void computeSurfaceNMatrixAt(FloatMatrix &answer, int iSurf, GaussPoint *gp);
    void giveSurfaceDofMapping(IntArray &answer, int) const override;
    double computeSurfaceVolumeAround(GaussPoint *gp, int) override;
    int computeLoadLSToLRotationMatrix(FloatMatrix &answer, int, GaussPoint *gp) override;
 
private:
    double dnx(int i, int arg2);
};
} // end namespace oofem
#endif // structural3delement_h