quad1mindlin.h

Go to the documentation of this file.

/*
 *
 *                 #####    #####   ######  ######  ###   ###
 *               ##   ##  ##   ##  ##      ##      ## ### ##
 *              ##   ##  ##   ##  ####    ####    ##  #  ##
 *             ##   ##  ##   ##  ##      ##      ##     ##
 *            ##   ##  ##   ##  ##      ##      ##     ##
 *            #####    #####   ##      ######  ##     ##
 *
 *
 *             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 quad1mindlin_H
#define quad1mindlin_H

#include "../sm/Elements/nlstructuralelement.h"
#include "zznodalrecoverymodel.h"
#include "sprnodalrecoverymodel.h"

#define _IFT_Quad1Mindlin_Name "quad1mindlin"
#define _IFT_Quad1Mindlin_ReducedIntegration "reducedintegration"

namespace oofem {
class FEI2dQuadLin;

class Quad1Mindlin : public NLStructuralElement,
public ZZNodalRecoveryModelInterface,
public SPRNodalRecoveryModelInterface
{
protected:
    static FEI2dQuadLin interp_lin;
    bool reducedIntegrationFlag;

public:
    Quad1Mindlin(int n, Domain * d);
    virtual ~Quad1Mindlin() { }

    virtual FEInterpolation *giveInterpolation() const;
    virtual FEInterpolation *giveInterpolation(DofIDItem id) const;

    virtual MaterialMode giveMaterialMode()  { return _2dPlate; }
    virtual int testElementExtension(ElementExtension ext) { return ( ( ext == Element_EdgeLoadSupport ) ? 1 : 0 ); }

    // definition & identification
    virtual const char *giveInputRecordName() const { return _IFT_Quad1Mindlin_Name; }
    virtual const char *giveClassName() const { return "Quad1Mindlin"; }
    virtual IRResultType initializeFrom(InputRecord *ir);

    virtual int computeNumberOfDofs() { return 12; }
    virtual void giveDofManDofIDMask(int inode, IntArray &) const;

    virtual void computeMidPlaneNormal(FloatArray &answer, const GaussPoint *gp);

    virtual double giveCharacteristicLength(const FloatArray &normalToCrackPlane);
    virtual double computeVolumeAround(GaussPoint *gp);

    virtual void computeLumpedMassMatrix(FloatMatrix &answer, TimeStep *tStep);
    virtual void computeMassMatrix(FloatMatrix &answer, TimeStep *tStep)
    { computeLumpedMassMatrix(answer, tStep); }

    virtual int giveIPValue(FloatArray &answer, GaussPoint *gp, InternalStateType type, TimeStep *tStep);
    virtual Interface *giveInterface(InterfaceType it);

protected:
    virtual void computeGaussPoints();
    virtual void computeBodyLoadVectorAt(FloatArray &answer, Load *load, TimeStep *tStep, ValueModeType mode);
    virtual void computeBmatrixAt(GaussPoint *gp, FloatMatrix &answer, int = 1, int = ALL_STRAINS);

    virtual void computeStressVector(FloatArray &answer, const FloatArray &strain, GaussPoint *gp, TimeStep *tStep);
    virtual void computeConstitutiveMatrixAt(FloatMatrix &answer, MatResponseMode rMode, GaussPoint *gp, TimeStep *tStep);

    virtual void giveEdgeDofMapping(IntArray &answer, int iEdge) const;
    virtual double computeEdgeVolumeAround(GaussPoint *gp, int iEdge);
    virtual int computeLoadLEToLRotationMatrix(FloatMatrix &answer, int iEdge, GaussPoint *gp);
    //virtual void computeSurfaceNMatrixAt(FloatMatrix &answer, GaussPoint *gp) { answer.clear(); }
    //virtual void giveSurfaceDofMapping(IntArray &answer, int iSurf) const { answer.clear(); }
    //virtual IntegrationRule *GetSurfaceIntegrationRule(int i) { return NULL; }
    //virtual double computeSurfaceVolumeAround(GaussPoint *gp, int iSurf) { return 0.; }
    virtual void SPRNodalRecoveryMI_giveSPRAssemblyPoints(IntArray &pap);
    virtual void SPRNodalRecoveryMI_giveDofMansDeterminedByPatch(IntArray &answer, int pap);
    virtual int SPRNodalRecoveryMI_giveNumberOfIP() { return this->numberOfGaussPoints; }
    virtual SPRPatchType SPRNodalRecoveryMI_givePatchType() { return SPRPatchType_2dxy; }
};
} // end namespace oofem
#endif // quad1mindlin_H