nlineardynamic.h

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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 nlineardynamic_h
#define nlineardynamic_h
 
#include "sm/EngineeringModels/structengngmodel.h"
#include "sparsemtrxtype.h"
#include "sparselinsystemnm.h"
#include "sparsenonlinsystemnm.h"
#include "timediscretizationtype.h"


#define _IFT_NonLinearDynamic_Name "nonlineardynamic"
#define _IFT_NonLinearDynamic_deltat "deltat"
#define _IFT_NonLinearDynamic_refloadmode "refloadmode"
#define _IFT_NonLinearDynamic_nonlocstiff "nonlocstiff"
#define _IFT_NonLinearDynamic_nonlocalext "nonlocalext"
#define _IFT_NonLinearDynamic_ddtScheme "ddtscheme"
#define _IFT_NonLinearDynamic_gamma "gamma"
#define _IFT_NonLinearDynamic_beta "beta"
#define _IFT_NonLinearDynamic_eta "eta"
#define _IFT_NonLinearDynamic_delta "delta"
 
namespace oofem {

class NonLinearDynamic : public StructuralEngngModel
{
protected:
    std :: unique_ptr< SparseMtrx > effectiveStiffnessMatrix, massMatrix;
 
    LinSystSolverType solverType;
    SparseMtrxType sparseMtrxType;
 
    int initFlag;
    TimeDiscretizationType initialTimeDiscretization;
    double gamma, beta;
    double eta, delta;
    double a0, a1, a2, a3, a4, a5, a6, a7;
 
    FloatArray velocityVector, accelerationVector, previousLoadVector;
    FloatArray previousVelocityVector, previousAccelerationVector;
    FloatArray help, rhs, rhs2, previousInternalForces;
    FloatArray previousIncrementOfDisplacement;
    FloatArray previousTotalDisplacement, totalDisplacement,  incrementOfDisplacement;
    FloatArray internalForces, forcesVector;
 
    int currentIterations, totIterations, MANRMSteps;
    int commInitFlag;
    int nonlocalStiffnessFlag;
    std :: unique_ptr< SparseNonLinearSystemNM > nMethod;
    double deltaT;
 
public:
    NonLinearDynamic(int i, EngngModel *master = nullptr);
    virtual ~NonLinearDynamic();
 
    void solveYourself() override;
    void solveYourselfAt(TimeStep *tStep) override;
 
    void printOutputAt(FILE *file, TimeStep *tStep) override;
    void printDofOutputAt(FILE *stream, Dof *iDof, TimeStep *tStep) override;
 
    void updateYourself(TimeStep *tStep) override;
    void updateComponent(TimeStep *tStep, NumericalCmpn, Domain *d) override;
    void updateSolution(FloatArray &solutionVector, TimeStep *tStep, Domain *d) override;
    void updateInternalRHS(FloatArray &answer, TimeStep *tStep, Domain *d, FloatArray *eNorm) override;
    void updateMatrix(SparseMtrx &mat, TimeStep *tStep, Domain *d) override;
    void updateAttributes(MetaStep *mStep) override;
    void initializeYourself(TimeStep *tStep) override;
 
    double giveUnknownComponent(ValueModeType type, TimeStep *tStep, Domain *d, Dof *dof) override;
 
    void initializeFrom(InputRecord &ir) override;
    TimeStep *giveNextStep() override;
    NumericalMethod *giveNumericalMethod(MetaStep *mStep) override;
 
    void saveContext(DataStream &stream, ContextMode mode) override;
    void restoreContext(DataStream &stream, ContextMode mode) override;
 
    void updateDomainLinks() override;
 
    // Identification
    const char *giveInputRecordName() const { return _IFT_NonLinearDynamic_Name; }
    const char *giveClassName() const override { return "NonLinearDynamic"; }
    fMode giveFormulation() override { return nonLinFormulation; }
    int useNonlocalStiffnessOption() override { return this->nonlocalStiffnessFlag; }
    int giveUnknownDictHashIndx(ValueModeType mode, TimeStep *tStep) override { return ( int ) mode; }
    void timesMtrx(FloatArray &answer, FloatArray &vec, CharType type, Domain *domain, TimeStep *tStep);
 
    TimeDiscretizationType giveInitialTimeDiscretization() { return initialTimeDiscretization; }
 
#ifdef __OOFEG
    void showSparseMtrxStructure(int type, oofegGraphicContext &gc, TimeStep *tStep) override;
#endif
 
    int estimateMaxPackSize(IntArray &commMap, DataStream &buff, int packUnpackType) override;
#ifdef __MPI_PARALLEL_MODE
    LoadBalancer *giveLoadBalancer() override;
    LoadBalancerMonitor *giveLoadBalancerMonitor() override;
#endif
 
protected:
    void assemble(SparseMtrx &answer, TimeStep *tStep, const MatrixAssembler &ma,
                  const UnknownNumberingScheme &, Domain *domain) override;
 
    void proceedStep(int di, TimeStep *tStep);
    void determineConstants(TimeStep *tStep);
 
    void packMigratingData(TimeStep *tStep) override;
    void unpackMigratingData(TimeStep *tStep) override;
};
} // end namespace oofem
#endif // nlineardynamic_h