pdelta.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 pdelta_h
#define pdelta_h
 
#include "sm/EngineeringModels/linearstatic.h"
#include "geneigvalsolvertype.h"
#include "sparsegeneigenvalsystemnm.h"
#include "sparselinsystemnm.h"
#include "sparsemtrx.h"
#include "floatmatrix.h"
#include "floatarray.h"
#include "nummet.h"


#define _IFT_Pdelta_Name "pdelta"
#define _IFT_Pdelta_rtolv "rtolv"
#define _IFT_Pdelta_stype "stype"
#define _IFT_Pdelta_maxiter "maxiter"
#define _IFT_Pdelta_lumpedInitialStressMatrix "lumped"
 
namespace oofem {

class Pdelta : public LinearStatic
{
private:
    std :: unique_ptr< SparseMtrx > initialStressMatrix;
    double rtolv;
    int maxiter;
    bool lumpedInitialStressMatrix; 
 
public:
    Pdelta(int i, EngngModel *master=nullptr);
    virtual ~Pdelta() { }
 
    void solveYourselfAt(TimeStep *tStep) override;
    void initializeFrom(InputRecord &ir) override;
 
    // identification
    const char *giveInputRecordName() const override { return _IFT_Pdelta_Name; }
    const char *giveClassName() const override { return "Pdelta"; }
};
} // end namespace oofem
#endif // pdelta_h