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rAKA/src/model/contact_mechanics_internodes/contact_detector_internodes.hh
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contact_detector_internodes.hh
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/**
* @file contact_detector_internodes.hh
*
* @author Moritz Waldleben <moritz.waldleben@epfl.ch>
*
* @date creation: Thu Jul 09 2022
* @date last modification: Thu Jul 17 2022
*
* @brief Algorithm to detetect contact nodes
*
*
* @section LICENSE
*
* Copyright (©) 2010-2021 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/>.
*
*/
/* -------------------------------------------------------------------------- */
#include "parsable.hh"
/* -------------------------------------------------------------------------- */
#ifndef __AKANTU_CONTACT_DETECTOR_INTERNODES_HH__
#define __AKANTU_CONTACT_DETECTOR_INTERNODES_HH__
namespace akantu {
class Mesh;
class NodeGroup;
} // namespace akantu
namespace akantu {
/* -------------------------------------------------------------------------- */
class ContactDetectorInternodes : public Parsable {
/* ------------------------------------------------------------------------ */
/* Constructor/Destructors */
/* ------------------------------------------------------------------------ */
public:
ContactDetectorInternodes(Mesh & mesh, const ID & id = "contact_detector");
~ContactDetectorInternodes() override = default;
/* ------------------------------------------------------------------------ */
/* Members */
/* ------------------------------------------------------------------------ */
public:
/// find contact nodes for iteration
void findContactNodes();
/// construct interpolation matrices
Matrix<Real> constructInterpolationMatrix(const NodeGroup & ref_node_group,
const NodeGroup & eval_node_group, Array<Real> eval_radiuses);
/// construct Phi matrix used for interpolation
Matrix<Real> constructPhiMatrix(const NodeGroup & ref_node_group,
const NodeGroup & eval_node_group, Array<Real> & eval_radiuses);
private:
/// reads the input file to get contact detection options
void parseSection(const ParserSection & section) override;
/// compute radius to detect contact nodes
Array<UInt> computeRadiuses(Array<Real> & attack_radiuses,
const NodeGroup & ref_node_group, const NodeGroup & eval_node_group,
Real c = 0.5, Real C = 0.95, Real d = 0.05, const UInt max_iter = 10);
/// radial basis function
static Real computeRadialBasisInterpolation(Real distance, Real radius);
/// distances between a reference node and other nodes
/// the out_array must already be allocated with sufficient size
void computeDistancesToRefNode(UInt & ref_node,
const NodeGroup & eval_node_group, Array<Real> & out_array);
/* ------------------------------------------------------------------------ */
/* Accessors */
/* ------------------------------------------------------------------------ */
public:
/// get the mesh
AKANTU_GET_MACRO(Mesh, mesh, Mesh &)
/// get radiuses of attack of master nodes
AKANTU_GET_MACRO_NOT_CONST(MasterRadiuses, master_radiuses, Array<Real> &)
/// get radiuses of attack of master nodes
AKANTU_GET_MACRO_NOT_CONST(SlaveRadiuses, slave_radiuses, Array<Real> &)
/// get initial master node group
NodeGroup & getInitialMasterNodeGroup();
/// get initial slave node group
NodeGroup & getInitialSlaveNodeGroup();
/// get master node group
NodeGroup & getMasterNodeGroup();
/// get slave node group
NodeGroup & getSlaveNodeGroup();
/* ------------------------------------------------------------------------ */
/* Class Members */
/* ------------------------------------------------------------------------ */
private:
/// mesh
Mesh & mesh;
/// dimension of the model
UInt spatial_dimension{0};
/// id of master node group, i.e nodes on interface
ID id_master_nodes{};
/// id of slave nodes group, i.e nodes on interface
ID id_slave_nodes{};
/// attack radiuses for master nodes
Array<Real> master_radiuses{0};
/// attack radiuses for master nodes
Array<Real> slave_radiuses{0};
/// blocked boundary dofs array
std::unique_ptr<Array<Real>> blocked_dofs;
};
} // namespace akantu
#endif /* __AKANTU_CONTACT_DETECTOR_INTERNODES_HH__ */
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