Page Menu
Home
c4science
Search
Configure Global Search
Log In
Files
F85646153
kelvin.cpp
No One
Temporary
Actions
Download File
Edit File
Delete File
View Transforms
Subscribe
Mute Notifications
Award Token
Subscribers
None
File Metadata
Details
File Info
Storage
Attached
Created
Mon, Sep 30, 16:32
Size
5 KB
Mime Type
text/x-c++
Expires
Wed, Oct 2, 16:32 (1 d, 23 h)
Engine
blob
Format
Raw Data
Handle
21228768
Attached To
rTAMAAS tamaas
kelvin.cpp
View Options
/**
* @file
*
* @author Lucas Frérot <lucas.frerot@epfl.ch>
*
* @section LICENSE
*
* Copyright (©) 2017 EPFL (Ecole Polytechnique Fédérale de
* Lausanne) Laboratory (LSMS - Laboratoire de Simulation en Mécanique des
* Solides)
*
* Tamaas 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.
*
* Tamaas 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 Tamaas. If not, see <http://www.gnu.org/licenses/>.
*
*/
/* -------------------------------------------------------------------------- */
#include "kelvin.hh"
#include "influence.hh"
#include "elasto_plastic_model.hh"
/* -------------------------------------------------------------------------- */
__BEGIN_TAMAAS__
/* -------------------------------------------------------------------------- */
/* -------------------------------------------------------------------------- */
/* Volume 2D implementation */
/* -------------------------------------------------------------------------- */
template <>
void Kelvin<model_type::volume_2d>::applyVolumeForcePotential(
GridBase<Real>& source, GridBase<Real>& out) const {
Real nu = model->getPoissonRatio(), mu = model->getShearModulus();
StaticVector<const Real, trait::dimension> domain(model->getSystemSize()[0]);
influence::Kelvin<trait::dimension, 0> kelvin(mu, nu, domain);
auto apply = [this, &kelvin](decltype(source_buffers)& source_buffers,
decltype(disp_buffers)& disp_buffers) {
constexpr UInt dim = trait::dimension;
const Real L = this->model->getSystemSize().front();
const UInt N = this->model->getDiscretization().front();
const Real dl = L / N;
// Do the matrix vector product
for (UInt i = 0; i < N; ++i) {
const Real xi = i * dl;
// Compute displacements u_i
auto & displacement = disp_buffers[i];
for (UInt j = 0; j < N; ++j) {
const Real yj = j * dl;
auto & source = source_buffers[j];
#define VOLUME_FORCE_POTENTIAL(yj_xi) \
do { \
Loop::stridedLoop( \
[&kelvin, xi, yj, dl](StaticVector<Complex, dim>&& u, \
StaticVector<Complex, dim>&& f, \
StaticVector<const Real, dim - 1>&& q) { \
constexpr UInt dim = trait::dimension; \
Complex F_mem[dim * dim]; \
StaticMatrix<Complex, dim, dim> F(*F_mem); \
Complex u_mem[dim * dim]; \
StaticVector<Complex, dim> u_tmp(*u_mem); \
influence::KelvinIntegrator<dim, 0, yj_xi>::integrate(kelvin, yj, \
xi, dl, q, F); \
u_tmp.mul(F, f); \
u += u_tmp; \
}, \
displacement, source, this->wavevectors); \
} while (0)
if (j > i) {
VOLUME_FORCE_POTENTIAL(1);
} else if (j == i) {
VOLUME_FORCE_POTENTIAL(0);
} else {
VOLUME_FORCE_POTENTIAL(-1);
}
#undef VOLUME_FORCE_POTENTIAL
}
// Setting fundamental frequency to zero
StaticVector<Complex, dim> u_fundamental(displacement(0));
u_fundamental = 0;
}
};
this->fourierApply(apply, source, out);
}
template <>
void Kelvin<model_type::volume_2d>::applyVolumeStressPotential(
GridBase<Real>& source, GridBase<Real>& out) const {
//
}
template <>
void Kelvin<model_type::volume_2d>::applyHypersingularStressPotential(
GridBase<Real>& source, GridBase<Real>& out) const {
//
}
/* -------------------------------------------------------------------------- */
/* Volume 1D implementation */
/* -------------------------------------------------------------------------- */
template <>
void Kelvin<model_type::volume_1d>::applyVolumeForcePotential(
GridBase<Real>& source, GridBase<Real>& out) const {
//
}
template <>
void Kelvin<model_type::volume_1d>::applyVolumeStressPotential(
GridBase<Real>& source, GridBase<Real>& out) const {
//
}
template <>
void Kelvin<model_type::volume_1d>::applyHypersingularStressPotential(
GridBase<Real>& source, GridBase<Real>& out) const {
//
}
/* -------------------------------------------------------------------------- */
/* Template instanciation */
/* -------------------------------------------------------------------------- */
template class Kelvin<model_type::volume_1d>;
template class Kelvin<model_type::volume_2d>;
/* -------------------------------------------------------------------------- */
__END_TAMAAS__
Event Timeline
Log In to Comment