structural2delement.h

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/*
 *
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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 structural2delement_h
#define structural2delement_h
 
#include "sm/Elements/nlstructuralelement.h"
#include "feinterpol2d.h"
 
namespace oofem {
class ParamKey;
class Structural2DElement : public NLStructuralElement
{
protected:
    FEICellGeometry *cellGeometryWrapper;
 
    bool matRotation;
 
    static ParamKey IPK_Structural2DElement_materialCoordinateSystem; 
public:
    Structural2DElement(int n, Domain *d);
    virtual ~Structural2DElement();
    void postInitialize() override;
    int giveNumberOfNodes() const override;
    virtual FEICellGeometry *giveCellGeometryWrapper();
 
    int computeNumberOfDofs() override;
    void giveDofManDofIDMask(int inode, IntArray &answer) const override;
    double computeVolumeAround(GaussPoint *gp) override;
 
    void initializeFrom(InputRecord &ir, int priority) override;
 
    double giveCharacteristicLength(const FloatArray &normalToCrackPlane) override;
 
protected:
    void computeBmatrixAt(GaussPoint *gp, FloatMatrix &answer, int lowerIndx = 1, int upperIndx = ALL_STRAINS) override = 0;
    void computeBHmatrixAt(GaussPoint *gp, FloatMatrix &answer) override = 0;
    void computeGaussPoints() override;
 
    void giveMaterialOrientationAt(FloatArray &x, FloatArray &y, const FloatArray &lcoords);
 
    // 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 ) ? 1 : 0 ); }
    
};
 
 
class PlaneStressElement : public Structural2DElement
{
public:
    PlaneStressElement(int n, Domain *d);
    virtual ~PlaneStressElement() { }
    MaterialMode giveMaterialMode() override { return _PlaneStress; }
    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;
    
protected:
    void computeBmatrixAt(GaussPoint *gp, FloatMatrix &answer, int lowerIndx = 1, int upperIndx = ALL_STRAINS) override;
    void computeBHmatrixAt(GaussPoint *gp, FloatMatrix &answer) override;
};
 
 
class PlaneStrainElement : public Structural2DElement
{
public:
    PlaneStrainElement(int n, Domain *d);
    virtual ~PlaneStrainElement() { }
    MaterialMode giveMaterialMode() override { return _PlaneStrain; }
    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;
 
protected:
    void computeBmatrixAt(GaussPoint *gp, FloatMatrix &answer, int lowerIndx = 1, int upperIndx = ALL_STRAINS) override;
    void computeBHmatrixAt(GaussPoint *gp, FloatMatrix &answer) override;
};
 
 
class AxisymElement : public Structural2DElement
{
public:
    AxisymElement(int n, Domain *d);
    virtual ~AxisymElement() { }
    MaterialMode giveMaterialMode() override { return _3dMat; }
    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;
 
    double giveCharacteristicLength(const FloatArray &crackToNormalPlane) override;
    double computeVolumeAround(GaussPoint *gp) 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;
    double computeEdgeVolumeAround(GaussPoint *gp, int iEdge) override;
};
} // end namespace oofem
#endif // structural2delement_h