cbselement.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 cbselement_h
#define cbselement_h
 
#include "fmelement.h"
 
namespace oofem {
class TimeStep;
class GaussPoint;
class FloatMatrix;
class FloatArray;
class ParamKey;

class CBSElement : public FMElement
{
protected:
    IntArray boundarySides;
    IntArray boundaryCodes;
 
    static ParamKey IPK_CBSElement_bsides;
    static ParamKey IPK_CBSElement_bcodes;
 
public:
    CBSElement(int n, Domain * aDomain);
 
    void initializeFrom(InputRecord &ir, int priority) override;
    void initializeFinish() override;
    void giveInputRecord(DynamicInputRecord &input) override;
 
    void giveCharacteristicMatrix(FloatMatrix &answer, CharType type, TimeStep *tStep) override;
    void giveCharacteristicVector(FloatArray &answer, CharType type, ValueModeType mode, TimeStep *tStep) override;

    virtual void computeConsistentMassMtrx(FloatMatrix &answer, TimeStep *tStep) = 0;
    virtual void computeDiagonalMassMtrx(FloatArray &answer, TimeStep *tStep) = 0;
    virtual void computePrescribedTermsI(FloatArray &answer, TimeStep *tStep);
    /* Calculates rhs due to prescribed density/pressure. */
    //virtual void computePrescribedTermsII(FloatArray& answer, ValueModeType, TimeStep*);
    virtual void computeConvectionTermsI(FloatArray &answer, TimeStep *tStep) = 0;
    virtual void computeDiffusionTermsI(FloatArray &answer, TimeStep *tStep) = 0;
    virtual void computeDensityRhsVelocityTerms(FloatArray &answer, TimeStep *tStep) = 0;
    virtual void computeDensityRhsPressureTerms(FloatArray &answer, TimeStep *tStep) = 0;
    virtual void computePrescribedTractionPressure(FloatArray &answer, TimeStep *tStep) = 0;
    virtual void computeNumberOfNodalPrescribedTractionPressureContributions(FloatArray &answer, TimeStep *tStep) = 0;
    virtual void computePressureLhs(FloatMatrix &answer, TimeStep *tStep) = 0;
    virtual void computeCorrectionRhs(FloatArray &answer, TimeStep *tStep) = 0;
    virtual double computeCriticalTimeStep(TimeStep *tStep) = 0;
 
    // time step termination
    void updateInternalState(TimeStep *tStep) override;
    int checkConsistency() override;
 
#ifdef __OOFEG
    int giveInternalStateAtNode(FloatArray &answer, InternalStateType type, InternalStateMode mode,
                                int node, TimeStep *tStep) override;
#endif
 
protected:
    virtual void computeDeviatoricStress(FloatArray &answer, GaussPoint *gp, TimeStep *tStep) = 0;
};
} // end namespace oofem
#endif // cbselement_h