contactbc.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 contactbc_h
#define contactbc_h
 
#include "activebc.h"
#include "floatarray.h"
#include "floatmatrix.h"
#include "feinterpol.h"
#include "contactpair.h"
#include "contactsearch.h"
#include "vtkbaseexportmodule.h"



 
namespace oofem {
class TimeStep;
class GaussPoint;
class IntArray;
class UnknownNumberingScheme;
class SparseMtrx;
class ContactPair;
class ContactSearchAlgorithm;

 
  class OOFEM_EXPORT ContactBoundaryCondition: public ActiveBoundaryCondition
{
protected:
  std::unique_ptr<ContactSearchAlgorithm> contactSearchAlgorithm;
    int updateEachNthIter = 1;
public:
    ContactBoundaryCondition(int n, Domain * d) : ActiveBoundaryCondition(n, d){;}
    virtual ~ContactBoundaryCondition(){;}
    
    std::vector<std::unique_ptr<ContactPair>>& getContactPairs() {
      return contactSearchAlgorithm->getContactPairs();
    };
    const std::vector<std::unique_ptr<ContactPair>>& getContactPairs() const {
        return contactSearchAlgorithm->getContactPairs();
    };
    
    virtual void initForNewIteration(TimeStep *tStep, int iter);
    void assemble(SparseMtrx &answer, TimeStep *tStep, CharType type, const UnknownNumberingScheme &r_s, const UnknownNumberingScheme &c_s, double scale, void *lock) override;
    virtual void assembleVector(FloatArray &answer, TimeStep *tStep, CharType type, ValueModeType mode, const UnknownNumberingScheme &s, FloatArray *eNorms, void *lock) override;
    void postInitialize() override;
    void assembleExtrapolatedForces(FloatArray &answer, TimeStep *tStep);
 private:
    void giveLocationArray(IntArray &loc, const UnknownNumberingScheme &ns, const ContactPair *cp) const;
    void giveLocationArrays(std::vector< IntArray > &rows, std::vector< IntArray > &cols, CharType type, const UnknownNumberingScheme &r_s, const UnknownNumberingScheme &c_s) override = 0;
    virtual void  computeTangentFromContact(FloatMatrix &answer, ContactPair *cp, TimeStep *tStep) = 0;
    virtual void computeInternalForcesFromContact(FloatArray &answer, ContactPair *cp, TimeStep *tStep) = 0;
    virtual  ContactSearchAlgorithm* giveContactSearchAlgorithm(){return contactSearchAlgorithm.get();}
    virtual  void setupContactSearchAlgorithm() = 0;
    void updateYourself(TimeStep *tStep) override;
 public:
    void giveExportData(std::vector< ExportRegion> &vtkPieces, FloatArray shift, TimeStep *tStep );
 
 
 
};
 
 
} // end namespace oofem
#endif //contactbc_h