cohsur3d.h

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/*
 *
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 *
 *
 *             OOFEM : Object Oriented Finite Element Code
 *
 *               Copyright (C) 1993 - 2013   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 cohsur3d_h
#define cohsur3d_h

#include "../sm/Elements/structuralelement.h"


#define _IFT_CohesiveSurface3d_Name "cohsur3d"
#define _IFT_CohSur3d_kx "kx"
#define _IFT_CohSur3d_ky "ky"
#define _IFT_CohSur3d_kz "kz"
#define _IFT_CohSur3d_area "area"


namespace oofem {
class CohesiveSurface3d : public StructuralElement
{
protected:
    double area, length;
    FloatArray center; 
    FloatMatrix lcs; 


    int kx, ky, kz;
    double kxa, kyb, kzc;

public:
    CohesiveSurface3d(int n, Domain * d);
    virtual ~CohesiveSurface3d() { }

    virtual void computeBmatrixAt(GaussPoint *gp, FloatMatrix &answer, int li, int ui);
    virtual double computeVolumeAround(GaussPoint *gp);
    virtual int computeNumberOfDofs() { return 6 * giveNumberOfNodes(); }
    virtual void giveDofManDofIDMask(int inode, IntArray &answer) const;
    double giveLength();
    virtual void computeNmatrixAt(const FloatArray &iLocCoord, FloatMatrix &answer) { }
    virtual int computeGlobalCoordinates(FloatArray &answer, const FloatArray &lcoords);

    // definition & identification
    virtual const char *giveClassName() const { return "CohesiveSurface3d"; }
    virtual const char *giveInputRecordName() const { return _IFT_CohesiveSurface3d_Name; }

    // input and output
    virtual IRResultType initializeFrom(InputRecord *ir);

#ifdef __OOFEG
    virtual void drawRawGeometry(oofegGraphicContext &gc, TimeStep *tStep);
    virtual void drawDeformedGeometry(oofegGraphicContext &gc, TimeStep *tStep, UnknownType);
    virtual void drawScalar(oofegGraphicContext &gc, TimeStep *tStep);
#endif

protected:
    virtual void computeGaussPoints();
    void evaluateCenter();
    void evaluateLocalCoordinateSystem();

    virtual void computeStressVector(FloatArray &answer, const FloatArray &strain, GaussPoint *gp, TimeStep *tStep);
    virtual void computeConstitutiveMatrixAt(FloatMatrix &answer, MatResponseMode rMode, GaussPoint *gp, TimeStep *tStep);
    virtual MaterialMode giveMaterialMode() { return _3dInterface; }
};
} // namespace oofem
#endif