lattice2d.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 - 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 lattice2d_h
#define lattice2d_h

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


#define _IFT_Lattice2d_Name "lattice2d"
#define _IFT_Lattice2d_thick "thick"
#define _IFT_Lattice2d_width "width"
#define _IFT_Lattice2d_gpcoords "gpcoords"
#define _IFT_Lattice2d_couplingflag "couplingflag"
#define _IFT_Lattice2d_couplingnumber "couplingnumber"


namespace oofem {
class Lattice2d : public LatticeStructuralElement
{
protected:
    double kappa, pitch, length;

    double width, thickness;
    FloatArray gpCoords;
    int couplingFlag;
    IntArray couplingNumbers;

public:
    Lattice2d(int n, Domain *d);
    virtual ~Lattice2d();

    virtual int giveLocalCoordinateSystem(FloatMatrix &answer);

    virtual int computeGlobalCoordinates(FloatArray &answer, const FloatArray &lcoords);

    virtual double giveLength();

    virtual double giveNormalStress();
    virtual double giveOldNormalStress();

    virtual int hasBeenUpdated();

    virtual double giveArea() { return this->width * this->thickness; }

    virtual int computeNumberOfDofs() { return 6; }
    virtual void giveDofManDofIDMask(int inode, IntArray &) const;
    virtual double computeVolumeAround(GaussPoint *gp);

    virtual int giveCrackFlag();

    virtual double giveCrackWidth();
    virtual double giveOldCrackWidth();

    virtual double giveDissipation();
    virtual double giveDeltaDissipation();

    virtual int giveCouplingFlag() { return couplingFlag; }

    virtual void giveCouplingNumbers(IntArray &numbers) { numbers = this->couplingNumbers; }
    //
    // definition & identification
    //
    virtual const char *giveInputRecordName() const { return _IFT_Lattice2d_Name; }
    virtual const char *giveClassName() const { return "Lattice2d"; }
    virtual IRResultType initializeFrom(InputRecord *ir);
    virtual Element_Geometry_Type giveGeometryType() const { return EGT_line_1; }

#ifdef __OOFEG
    virtual void drawYourself(oofegGraphicContext &gc, TimeStep *tStep);
    virtual void drawRawGeometry(oofegGraphicContext &gc, TimeStep *tStep);
    virtual void drawDeformedGeometry(oofegGraphicContext &gc, TimeStep *tStep, UnknownType);
    virtual void drawSpecial(oofegGraphicContext &gc, TimeStep *tStep);
    virtual void drawRawCrossSections(oofegGraphicContext &gc, TimeStep *tStep);
    virtual void giveCrossSectionCoordinates(FloatArray &coords);

#endif

protected:

    virtual contextIOResultType saveContext(DataStream &stream, ContextMode mode, void *obj = NULL);
    virtual contextIOResultType restoreContext(DataStream &stream, ContextMode mode, void *obj = NULL);

    virtual void computeBmatrixAt(GaussPoint *, FloatMatrix &, int = 1, int = ALL_STRAINS);
    virtual bool computeGtoLRotationMatrix(FloatMatrix &);
    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 computeStiffnessMatrix(FloatMatrix &answer, MatResponseMode rMode, TimeStep *tStep);

    virtual int giveNumberOfCrossSectionNodes() { return 2; }
    double givePitch();
    virtual void computeGaussPoints();
    virtual integrationDomain giveIntegrationDomain() const { return _Line; }
    virtual void  giveGpCoordinates(FloatArray &coords);
};
} // end namespace oofem
#endif