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rAKA/src/ntn_contact/ntn_contact.hh
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ntn_contact.hh
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/**
* @file ntn_contact.hh
* @author David Kammer <david.kammer@epfl.ch>
* @date Mon Feb 20 15:13:23 2012
*
* @brief contact for node to node discretization
*
* @section LICENSE
*
* Copyright (©) 2010-2011 EPFL (Ecole Polytechnique Fédérale de Lausanne)
* Laboratory (LSMS - Laboratoire de Simulation en Mécanique des Solides)
*
* Akantu 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 3 of the License, or (at your option) any
* later version.
*
* Akantu 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 Akantu. If not, see <http://www.gnu.org/licenses/>.
*
*/
/* -------------------------------------------------------------------------- */
#ifndef __AST_NTN_CONTACT_HH__
#define __AST_NTN_CONTACT_HH__
/* -------------------------------------------------------------------------- */
// simtools
#include "ntn_base_contact.hh"
__BEGIN_SIMTOOLS__
/* -------------------------------------------------------------------------- */
using namespace akantu;
/* -------------------------------------------------------------------------- */
class NTNContact : public NTNBaseContact {
/* ------------------------------------------------------------------------ */
/* Constructors/Destructors */
/* ------------------------------------------------------------------------ */
public:
NTNContact(SolidMechanicsModel & model,
const ContactID & id = "contact",
const MemoryID & memory_id = 0);
virtual ~NTNContact() {};
/* ------------------------------------------------------------------------ */
/* Methods */
/* ------------------------------------------------------------------------ */
public:
/// add surface pair and pair nodes according to the surface normal
void addSurfacePair(const Surface & slave,
const Surface & master,
UInt surface_normal_dir);
/// fills the pairs vector with interface node pairs (*,0)=slaves, (*,1)=masters
static void pairInterfaceNodes(const ElementGroup & slave_boundary,
const ElementGroup & master_boundary,
UInt surface_normal_dir,
const Mesh & mesh,
Array<UInt> & pairs);
// add node pairs from a list with pairs(*,0)=slaves and pairs(*,1)=masters
void addNodePairs(const Array<UInt> & pairs);
/// add node pair
virtual void addSplitNode(UInt slave, UInt master);
/// update (compute the normals on the master nodes)
virtual void updateNormals();
/// update the lumped boundary B matrix
virtual void updateLumpedBoundary();
/// update the impedance matrix
virtual void updateImpedance();
/// impose the normal contact force
virtual void applyContactPressure();
/// dump restart file
virtual void dumpRestart(const std::string & file_name) const;
/// read restart file
virtual void readRestart(const std::string & file_name);
/// compute the normal gap
virtual void computeNormalGap(Array<Real> & gap) const {
this->computeRelativeNormalField(this->model.getCurrentPosition(),
gap);
};
/// compute relative normal field (only value that has to be multiplied with the normal)
/// relative to master nodes
virtual void computeRelativeNormalField(const Array<Real> & field,
Array<Real> & rel_normal_field) const;
/// compute relative tangential field (complet array)
/// relative to master nodes
virtual void computeRelativeTangentialField(const Array<Real> & field,
Array<Real> & rel_tang_field) const;
/// function to print the contain of the class
virtual void printself(std::ostream & stream, int indent = 0) const;
protected:
/// synchronize arrays
virtual void syncArrays(SyncChoice sync_choice);
/* ------------------------------------------------------------------------ */
/* Dumpable */
/* ------------------------------------------------------------------------ */
public:
virtual void addDumpFieldToDumper(const std::string & dumper_name,
const std::string & field_id);
// virtual void addDumpFieldVector(const std::string & field_id);
/* ------------------------------------------------------------------------ */
/* Accessors */
/* ------------------------------------------------------------------------ */
public:
AKANTU_GET_MACRO(Masters, masters, const SynchronizedArray<UInt> &)
AKANTU_GET_MACRO(LumpedBoundaryMasters, lumped_boundary_masters, const SynchronizedArray<Real> &)
/// get interface node pairs (*,0) are slaves, (*,1) are masters
void getNodePairs(Array<UInt> & pairs) const;
/// get index of node in either slaves or masters array
/// if node is in neither of them, return -1
Int getNodeIndex(UInt node) const;
/* ------------------------------------------------------------------------ */
/* Class Members */
/* ------------------------------------------------------------------------ */
private:
/// array of master nodes
SynchronizedArray<UInt> masters;
/// lumped boundary of master nodes
SynchronizedArray<Real> lumped_boundary_masters;
// element list for dump and lumped_boundary
ElementTypeMapArray<UInt> master_elements;
};
/* -------------------------------------------------------------------------- */
/* inline functions */
/* -------------------------------------------------------------------------- */
//#include "ntn_contact_inline_impl.cc"
/// standard output stream operator
inline std::ostream & operator <<(std::ostream & stream, const NTNContact & _this)
{
_this.printself(stream);
return stream;
}
__END_SIMTOOLS__
#endif /* __AST_NTN_CONTACT_HH__ */
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