Homec4science
Diffusion akantu (features/manual-improvement) Browse

rAKA/src/model/time_step_solvers/time_step_solver_default.cc
1e72176f9e34features/manual…

Last Change
Raw File

time_step_solver_default.cc
View Options

/**
* @file time_step_solver_default.cc
*
* @author Nicolas Richart <nicolas.richart@epfl.ch>
*
* @date Wed Sep 16 10:20:55 2015
*
* @brief Default implementation of the time step solver
*
* @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 "time_step_solver_default.hh"
#include "dof_manager_default.hh"
#include "integration_scheme_1st_order.hh"
#include "integration_scheme_2nd_order.hh"
/* -------------------------------------------------------------------------- */
__BEGIN_AKANTU__
/* -------------------------------------------------------------------------- */
// void TimeStepSolverDefault::updateAcceleration() {
// AKANTU_DEBUG_IN();
// updateResidualInternal();
// if (method == _explicit_lumped_mass) {
// /* residual = residual_{n+1} - M * acceleration_n therefore
// solution = increment acceleration not acceleration */
// solveLumped(*increment_acceleration, *mass, *residual, *blocked_dofs,
// f_m2a);
// } else if (method == _explicit_consistent_mass) {
// solve<NewmarkBeta::_acceleration_corrector>(*increment_acceleration);
// }
// AKANTU_DEBUG_OUT();
// }
/* -------------------------------------------------------------------------- */
TimeStepSolverDefault::TimeStepSolverDefault(DOFManagerDefault & dof_manager,
const ID & dof_id,
const TimeStepSolverType & type,
const ID & id, UInt memory_id)
: TimeStepSolver(dof_manager, dof_id, type, id, memory_id),
dof_manager(dof_manager) {
switch (type) {
case _tsst_forward_euler: {
this->integration_scheme = new ForwardEuler();
break;
}
case _tsst_trapezoidal_rule_1: {
this->integration_scheme = new TrapezoidalRule1();
break;
}
case _tsst_backward_euler: {
this->integration_scheme = new BackwardEuler();
break;
}
case _tsst_central_difference: {
this->integration_scheme = new CentralDifference();
break;
}
case _tsst_fox_goodwin: {
this->integration_scheme = new FoxGoodwin();
break;
}
case _tsst_trapezoidal_rule_2: {
this->integration_scheme = new TrapezoidalRule2();
break;
}
case _tsst_linear_acceleration: {
this->integration_scheme = new LinearAceleration();
break;
}
// Write a c++11 version of the constructor with initializer list that
// contains the arguments for the integration scheme
case _tsst_generalized_trapezoidal:
case _tsst_newmark_beta:
AKANTU_EXCEPTION(
"This time step solvers cannot be created with this constructor");
}
}
/* -------------------------------------------------------------------------- */
TimeStepSolverDefault::~TimeStepSolverDefault() {
delete this->integration_scheme;
}
/* -------------------------------------------------------------------------- */
void TimeStepSolverDefault::predictor() {
AKANTU_DEBUG_IN();
Array<Real> & u = this->dof_manager.getDOFs(this->dof_id);
const Array<bool> & blocked_dofs =
this->dof_manager.getBlockedDOFs(this->dof_id);
// increment.copy(u);
if (this->integration_scheme->getOrder() == 1) {
Array<Real> & u_dot = dof_manager.getDOFsDerivatives(this->dof_id, 1);
IntegrationScheme1stOrder & int_scheme =
*dynamic_cast<IntegrationScheme1stOrder *>(this->integration_scheme);
int_scheme.integrationSchemePred(this->time_step, u, u_dot, blocked_dofs);
} else if (this->integration_scheme->getOrder() == 2) {
Array<Real> & u_dot = dof_manager.getDOFsDerivatives(this->dof_id, 1);
Array<Real> & u_dot_dot = dof_manager.getDOFsDerivatives(this->dof_id, 2);
IntegrationScheme2ndOrder & int_scheme =
*dynamic_cast<IntegrationScheme2ndOrder *>(this->integration_scheme);
int_scheme.integrationSchemePred(this->time_step, u, u_dot, u_dot_dot,
blocked_dofs);
}
// UInt nb_degree_of_freedom = u.getSize() * u.getNbComponent();
// Array<Real>::scalar_iterator incr_it =
// increment.begin_reinterpret(nb_degree_of_freedom);
// Array<Real>::const_scalar_iterator u_it =
// u.begin_reinterpret(nb_degree_of_freedom);
// Array<Real>::const_scalar_iterator u_end =
// u.end_reinterpret(nb_degree_of_freedom);
// for (; u_it != u_end; ++u_it, ++incr_it) {
// *incr_it = *u_it - *incr_it;
// }
AKANTU_DEBUG_OUT();
}
/* -------------------------------------------------------------------------- */
void TimeStepSolverDefault::corrector() {
AKANTU_DEBUG_IN();
Array<Real> & u = this->dof_manager.getDOFs(this->dof_id);
const Array<Real> & solution = this->dof_manager.getSolution(this->dof_id);
const Array<bool> & blocked_dofs =
this->dof_manager.getBlockedDOFs(this->dof_id);
// increment.copy(u);
if (this->integration_scheme->getOrder() == 1) {
Array<Real> & u_dot = dof_manager.getDOFsDerivatives(this->dof_id, 1);
IntegrationScheme1stOrder & int_scheme =
*dynamic_cast<IntegrationScheme1stOrder *>(this->integration_scheme);
switch (this->corrector_type) {
case IntegrationScheme1stOrder::_temperature_corrector:
int_scheme.integrationSchemeCorrTemp(this->time_step, u, u_dot,
blocked_dofs, solution);
break;
case IntegrationScheme1stOrder::_temperature_rate_corrector:
int_scheme.integrationSchemeCorrTempRate(this->time_step, u, u_dot,
blocked_dofs, solution);
break;
}
} else if (this->integration_scheme->getOrder() == 2) {
Array<Real> & u_dot = dof_manager.getDOFsDerivatives(this->dof_id, 1);
Array<Real> & u_dot_dot = dof_manager.getDOFsDerivatives(this->dof_id, 2);
IntegrationScheme2ndOrder & int_scheme =
*dynamic_cast<IntegrationScheme2ndOrder *>(this->integration_scheme);
switch (this->corrector_type) {
case IntegrationScheme2ndOrder::_displacement_corrector:
int_scheme.integrationSchemeCorrDispl(this->time_step, u, u_dot,
u_dot_dot, blocked_dofs, solution);
break;
case IntegrationScheme2ndOrder::_velocity_corrector:
int_scheme.integrationSchemeCorrVeloc(this->time_step, u, u_dot,
u_dot_dot, blocked_dofs, solution);
break;
case IntegrationScheme2ndOrder::_acceleration_corrector:
int_scheme.integrationSchemeCorrAccel(this->time_step, u, u_dot,
u_dot_dot, blocked_dofs, solution);
break;
}
}
AKANTU_DEBUG_OUT();
}
/* -------------------------------------------------------------------------- */
void TimeStepSolverDefault::solveStep() {
AKANTU_DEBUG_IN();
// EventManager::sendEvent(
// SolidMechanicsModelEvent::BeforeSolveStepEvent(method));
// this->predictor();
// this->solver->solve();
// this->corrector();
// EventManager::sendEvent(
// SolidMechanicsModelEvent::AfterSolveStepEvent(method));
AKANTU_DEBUG_OUT();
}
__END_AKANTU__
c4science · Help