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rAKA/src/model/solid_mechanics/solid_mechanics_model_cohesive_inline_impl.cc
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solid_mechanics_model_cohesive_inline_impl.cc
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/**
* @file solid_mechanics_model_cohesive_inline_impl.cc
*
* @author Mauro Corrado <mauro.corrado@epfl.ch>
*
* @date Thu Feb 26 14:23:45 2015
*
* @brief Implementation of inline functions for the Cohesive element model
*
* @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/>.
*
*/
/* -------------------------------------------------------------------------- */
/* -------------------------------------------------------------------------- */
#include <algorithm>
#include "shape_cohesive.hh"
#include "solid_mechanics_model_cohesive.hh"
#include "dumpable_inline_impl.hh"
#include "material_cohesive.hh"
#ifndef __AKANTU_SOLID_MECHANICS_MODEL_COHESIVE_INLINE_IMPL_CC__
#define __AKANTU_SOLID_MECHANICS_MODEL_COHESIVE_INLINE_IMPL_CC__
__BEGIN_AKANTU__
/* -------------------------------------------------------------------------- */
template<SolveConvergenceMethod cmethod, SolveConvergenceCriteria criteria>
bool SolidMechanicsModelCohesive::solveStepCohesive(Real tolerance,
Real & error,
UInt max_iteration,
bool do_not_factorize) {
EventManager::sendEvent(SolidMechanicsModelEvent::BeforeSolveStepEvent(method));
this->implicitPred();
bool something_converged;
bool converged;
Array<Real> * displacement_tmp = NULL;
Array<Real> * velocity_tmp = NULL;
Array<Real> * acceleration_tmp = NULL;
something_converged = false;
converged = false;
while (!something_converged) { //loop for insertion of new cohesive elements
if (is_extrinsic) {
// If in extrinsic saves the current displacements, velocities and accelerations
Array<Real> * tmp_swap;
if(!displacement_tmp) {
displacement_tmp = new Array<Real>(*(this->displacement));
} else {
(*displacement_tmp).resize(this->displacement->getSize());
// displacement_tmp->resize(this->displacement->getSize());
(*displacement_tmp).copy(*(this->displacement));
//displacement_tmp->copy(*(this->displacement));
}
tmp_swap = displacement_tmp;
displacement_tmp = this->displacement;
this->displacement = tmp_swap;
if(!velocity_tmp) {
velocity_tmp = new Array<Real>(*(this->velocity));
} else {
velocity_tmp->resize(this->velocity->getSize());
velocity_tmp->copy(*(this->velocity));
}
tmp_swap = velocity_tmp;
velocity_tmp = this->velocity;
this->velocity = tmp_swap;
if(!acceleration_tmp) {
acceleration_tmp = new Array<Real>(*(this->acceleration));
} else {
acceleration_tmp->resize(this->acceleration->getSize());
acceleration_tmp->copy(*(this->acceleration));
}
tmp_swap = acceleration_tmp;
acceleration_tmp = this->acceleration;
this->acceleration = tmp_swap;
}
this->updateResidual();
AKANTU_DEBUG_ASSERT(stiffness_matrix != NULL,
"You should first initialize the implicit solver and assemble the stiffness matrix");
bool need_factorize = !do_not_factorize;
if (method ==_implicit_dynamic) {
AKANTU_DEBUG_ASSERT(mass_matrix != NULL,
"You should first initialize the implicit solver and assemble the mass matrix");
}
switch (cmethod) {
case _scm_newton_raphson_tangent:
case _scm_newton_raphson_tangent_not_computed:
break;
case _scm_newton_raphson_tangent_modified:
this->assembleStiffnessMatrix();
break;
default:
AKANTU_DEBUG_ERROR("The resolution method " << cmethod << " has not been implemented!");
}
UInt iter = 0;
converged = false;
error = 0.;
if(criteria == _scc_residual) {
converged = this->testConvergence<criteria> (tolerance, error);
if(converged) return converged;
}
do {
if (cmethod == _scm_newton_raphson_tangent)
this->assembleStiffnessMatrix();
solve<NewmarkBeta::_displacement_corrector> (*increment, 1., need_factorize);
this->implicitCorr();
this->updateResidual();
converged = this->testConvergence<criteria> (tolerance, error);
// dump();
// dump("cohesive elements");
//std::cout << "Error after loop: " << error << std::endl;
iter++;
AKANTU_DEBUG_INFO("[" << criteria << "] Convergence iteration "
<< std::setw(std::log10(max_iteration)) << iter
<< ": error " << error << (converged ? " < " : " > ") << tolerance);
switch (cmethod) {
case _scm_newton_raphson_tangent:
need_factorize = true;
break;
case _scm_newton_raphson_tangent_not_computed:
case _scm_newton_raphson_tangent_modified:
need_factorize = false;
break;
default:
AKANTU_DEBUG_ERROR("The resolution method " << cmethod << " has not been implemented!");
}
} while (!converged && iter < max_iteration);
if (converged) {
//// EventManager::sendEvent(SolidMechanicsModelEvent::AfterSolveStepEvent(method));
std::cout << "Error after convergence: " << error << std::endl;
std::cout << "no. of iterations: " << iter << std::endl;
} else if(iter == max_iteration) {
AKANTU_DEBUG_WARNING("[" << criteria << "] Convergence not reached after "
<< std::setw(std::log10(max_iteration)) << iter <<
" iteration" << (iter == 1 ? "" : "s") << "!" << std::endl);
std::cout << "Error after NON convergence: " << error << std::endl;
}
if (is_extrinsic) {
Array<Real> * tmp_swap;
tmp_swap = displacement_tmp;
displacement_tmp = this->displacement;
this->displacement = tmp_swap;
tmp_swap = velocity_tmp;
velocity_tmp = this->velocity;
this->velocity = tmp_swap;
tmp_swap = acceleration_tmp;
acceleration_tmp = this->acceleration;
this->acceleration = tmp_swap;
if (converged){
UInt nb_cohesive_elements = this->mesh.getNbElement(this->spatial_dimension, _not_ghost, _ek_cohesive) +
this->mesh.getNbElement(this->spatial_dimension, _ghost, _ek_cohesive);
this->checkCohesiveStress();
UInt new_nb_cohesive_elements = this->mesh.getNbElement(this->spatial_dimension, _not_ghost, _ek_cohesive) +
this->mesh.getNbElement(this->spatial_dimension, _ghost, _ek_cohesive);
if (new_nb_cohesive_elements == nb_cohesive_elements) {
something_converged = true;
} else {
something_converged = false;
std::cout << "1 cohesive element has been inserted" << std::endl;
}
}
}
if (!converged){
something_converged = true;
for (UInt m = 0; m < materials.size(); ++m) {
try {
MaterialCohesive & mat = dynamic_cast<MaterialCohesive &>(*materials[m]);
mat.checkDeltaMax(_not_ghost);
} catch(std::bad_cast&) { }
}
}
} //end while something_converged
if(is_extrinsic && converged) {
EventManager::sendEvent(SolidMechanicsModelEvent::AfterSolveStepEvent(method));
this->displacement->copy(*displacement_tmp);
this->velocity ->copy(*velocity_tmp);
this->acceleration->copy(*acceleration_tmp);
delete displacement_tmp;
delete velocity_tmp;
delete acceleration_tmp;
}
return something_converged;
}
__END_AKANTU__
#if defined (AKANTU_PARALLEL_COHESIVE_ELEMENT)
# include "solid_mechanics_model_cohesive_parallel_inline_impl.cc"
#endif
#endif /* __AKANTU_SOLID_MECHANICS_MODEL_COHESIVE_INLINE_IMPL_CC__ */
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