graddamageelement.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 graddamageelement_h
#define graddamageelement_h
 
#include "../sm/Elements/structuralelement.h"
#include "../sm/Elements/nlstructuralelement.h"
 
#define _IFT_GradientDamageElement_penalty "penalty"
 
 
namespace oofem {
 
 
 
 
class GradientDamageElement
{
protected:
    int nPrimNodes, nPrimVars, nSecNodes, nSecVars;
    int totalSize, nlSize, locSize;
    IntArray locationArray_u;
    IntArray locationArray_d;
    double penalty;
 
public:
    GradientDamageElement();
    virtual ~GradientDamageElement() { }
 
    virtual void initializeFrom(InputRecord &ir);
 
protected:
    virtual StructuralElement *giveStructuralElement() = 0;
    virtual NLStructuralElement *giveNLStructuralElement() = 0;
 
    virtual void computeNdMatrixAt(GaussPoint *gp, FloatArray &answer) = 0;
    virtual void computeBdMatrixAt(GaussPoint *gp, FloatMatrix &answer) = 0;
 
    virtual void giveDofManDofIDMask_u(IntArray &answer) const = 0;
    virtual void giveDofManDofIDMask_d(IntArray &answer) const = 0;
 
 
    void computeStiffnessMatrix(FloatMatrix &, MatResponseMode, TimeStep *);
    void computeStiffnessMatrix_uu(FloatMatrix &, MatResponseMode, TimeStep *);
    void computeStiffnessMatrix_ud(FloatMatrix &, MatResponseMode, TimeStep *);
    void computeStiffnessMatrix_dd(FloatMatrix &, MatResponseMode, TimeStep *);
    void computeStiffnessMatrix_du(FloatMatrix &, MatResponseMode, TimeStep *);
 
    void computeDisplacementDegreesOfFreedom(FloatArray &answer, TimeStep *tStep);
    void computeStrainVector(FloatArray &answer, GaussPoint *gp, TimeStep *tStep);
    void computeDeformationGradientVector(FloatArray &answer, GaussPoint *gp, TimeStep *tStep);
 
    void computeNonlocalDegreesOfFreedom(FloatArray &answer, TimeStep *tStep, ValueModeType vmt = VM_Total);
    void computeNonlocalDamageDrivingVariable(double &answer, GaussPoint *gp, TimeStep *tStep);
    void computeNonlocalDamageDrivingVariableGradient(FloatArray &answer, GaussPoint *gp, TimeStep *tStep);
 
 
    void giveInternalForcesVector(FloatArray &answer, TimeStep *tStep, int useUpdatedGpRecord);
    void giveInternalForcesVector_u(FloatArray &answer, TimeStep *tStep, int useUpdatedGpRecord);
    void giveInternalForcesVector_d(FloatArray &answer, TimeStep *tStep, int useUpdatedGpRecord);
 
    void computeInternalForces_dN(double &answer, double localDamageDrivingVariable, double damage, GaussPoint *gp, TimeStep *tStep);
    void computeInternalForces_dB(FloatArray &answer, double localDamageDrivingVariable, FloatArray damage_grad, GaussPoint *gp, TimeStep *tStep);
 
    void computeStressVector_and_localDamageDrivingVariable(FloatArray &answer, double &localCumulatedPlasticStrain, GaussPoint *gp, TimeStep *tStep);
 
 
    void giveLocationArrayOfDofIDs(IntArray &locationArray_u, IntArray &locationArray_d, const UnknownNumberingScheme &s, const IntArray &dofIdArray_u, const IntArray &dofIdArray_m);
 
    virtual void giveLocationArray_u(IntArray &answer) = 0;
    virtual void giveLocationArray_d(IntArray &answer) = 0;
 
 
    virtual const char *giveClassName() const { return "GradientDamageElement"; }
 
    virtual void postInitialize();
};
} // end namespace oofem
 
#endif // end gradient damage element