incrementallinearstatic.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 - 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 incrementallinearstatic_h
#define incrementallinearstatic_h
 
#include "sm/EngineeringModels/structengngmodel.h"
#include "sparselinsystemnm.h"
#include "sparsemtrxtype.h"
 
#include <memory>


#define _IFT_IncrementalLinearStatic_Name "incrlinearstatic"
#define _IFT_IncrementalLinearStatic_endoftimeofinterest "endoftimeofinterest"
#define _IFT_IncrementalLinearStatic_prescribedtimes "prescribedtimes"
#define _IFT_IncrementalLinearStatic_deltat "deltat"
 
namespace oofem {
class IncrementalLinearStatic : public StructuralEngngModel
{
protected:
    std :: unique_ptr< SparseMtrx > stiffnessMatrix;
    FloatArray loadVector;
    FloatArray internalLoadVector;
    FloatArray incrementOfDisplacementVector;
    FloatArray discreteTimes;
    bool fixedSteps;
    double deltaT;
    double endOfTimeOfInterest;
    std :: unique_ptr< SparseLinearSystemNM > nMethod;
 
    LinSystSolverType solverType;
    SparseMtrxType sparseMtrxType;
 
public:
    IncrementalLinearStatic(int i, EngngModel *master = nullptr);
    virtual ~IncrementalLinearStatic();
 
    void initializeFrom(InputRecord &ir) override;
 
    void solveYourself() override;
    void solveYourselfAt(TimeStep *tStep) override;
 
    double giveUnknownComponent(ValueModeType mode, TimeStep *tStep, Domain *d, Dof *dof) override;
    void saveContext(DataStream &stream, ContextMode mode) override;
    void restoreContext(DataStream &stream, ContextMode mode) override;
    TimeStep *giveNextStep() override;

    double giveDiscreteTime(int iStep);
    double giveEndOfTimeOfInterest() override { return endOfTimeOfInterest; }
 
    NumericalMethod *giveNumericalMethod(MetaStep *mStep) override;
 
    fMode giveFormulation() override { return TL; }
 
    const char *giveInputRecordName() const { return _IFT_IncrementalLinearStatic_Name; }
    const char *giveClassName() const override { return "IncrementalLinearStatic"; }
 
    int requiresUnknownsDictionaryUpdate() override { return true; }
    bool requiresEquationRenumbering(TimeStep *tStep) override { return true; }
    void updateDofUnknownsDictionary(DofManager *dman, TimeStep *tStep) override;
    // Here we store only total and incremental value; so hash is computed from mode value only
    int giveUnknownDictHashIndx(ValueModeType mode, TimeStep *tStep) override;
};
} // end namespace oofem
#endif // incrementallinearstatic_h