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muSpectre/language_bindings/python/bind_py_material_crystal_plasticity_finite.cc
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bind_py_material_crystal_plasticity_finite.cc
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/**
* @file bind_py_material_crystal_plasticity_finite.cc
*
* @author Till Junge <till.junge@altermail.ch>
*
* @date 29 Oct 2018
*
* @brief python binding for MaterialCrystalPlasticityFinite
*
* Copyright © 2018 Till Junge
*
* µSpectre is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public License as
* published by the Free Software Foundation, either version 3, or (at
* your option) any later version.
*
* µSpectre 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
* General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with µSpectre; see the file COPYING. If not, write to the
* Free Software Foundation, Inc., 59 Temple Place - Suite 330,
* Boston, MA 02111-1307, USA.
*/
#include "common/common.hh"
#include "materials/stress_transformations_PK2.hh"
#include "materials/material_crystal_plasticity_finite.hh"
#include "cell/cell_base.hh"
#include <pybind11/pybind11.h>
#include <pybind11/stl.h>
#include <pybind11/eigen.h>
#include <sstream>
#include <string>
using namespace muSpectre; // NOLINT // TODO: junge
namespace py = pybind11;
using namespace pybind11::literals; // NOLINT recommended usage
/**
* python binding for the standard crystal plasticity model of Francesco
*/
template <Dim_t dim, Dim_t NbSlip>
void add_material_crystal_plasticity_finite1_helper(py::module & mod) {
std::stringstream name_stream{};
name_stream << "MaterialCrystalPlasticityFinite_" << dim << "d_" << NbSlip
<< "slip";
const auto name{name_stream.str()};
using Mat_t = MaterialCrystalPlasticityFinite<dim, dim, NbSlip>;
using Sys_t = CellBase<dim, dim>;
py::class_<Mat_t, MaterialBase<dim, dim>, std::shared_ptr<Mat_t>>(
mod, name.c_str())
.def_static("make",
[](Sys_t & sys, std::string n, Real bulk_modulus,
Real shear_modulus, Real gamma_dot_0, Real m, Real tau_y0,
Real h0, Real delta_tau_y_max, Real a, Real q_n,
py::EigenDRef<Eigen::MatrixXd> slip,
py::EigenDRef<Eigen::MatrixXd> normals, Real delta_t,
Real tolerance, Int maxiter) -> Mat_t & {
auto check = [](auto && mat, auto && name) {
if (not((mat.rows() == NbSlip) and (mat.cols() == dim))) {
std::stringstream err{};
err << "The " << name
<< " need to be given in the form of a " << NbSlip
<< "×" << dim << " matrix, but you gave a "
<< mat.rows() << "×" << mat.cols() << " matrix.";
throw std::runtime_error(err.str());
}
};
check(slip, "slip directions");
check(normals, "normals to slip planes");
Eigen::Matrix<Real, NbSlip, dim> real_slip{slip};
Eigen::Matrix<Real, NbSlip, dim> real_normals{normals};
return Mat_t::make(
sys, n, bulk_modulus, shear_modulus, gamma_dot_0, m,
tau_y0, h0, delta_tau_y_max, a, q_n, real_slip,
real_normals, delta_t, tolerance, maxiter);
},
"cell"_a, "name"_a, "bulk_modulus"_a, "shear_modulus"_a,
"dγ/dt₀"_a, "m_exonent"_a, "tau_y₀"_a, "h₀"_a, "Δτ_y_max"_a,
"a_exponent"_a, "qₙ"_a, "slip_directions"_a, "normals"_a,
"Δt"_a, "tolerance"_a = 1.e-4, "max_iter"_a = 20,
py::return_value_policy::reference, py::keep_alive<1, 0>())
.def("add_pixel",
[](Mat_t & mat, Ccoord_t<dim> pix,
py::EigenDRef<Eigen::MatrixXd> euler) {
auto check = [](auto && mat, auto && name) {
if (not((mat.rows() == NbSlip) and (mat.cols() == 1))) {
std::stringstream err{};
err << "The " << name << " need to be given in the form of a "
<< Mat_t::NbEuler << "×" << 1 << " matrix, but you gave a "
<< mat.rows() << "×" << mat.cols() << " matrix.";
throw std::runtime_error(err.str());
}
};
check(euler, "euler angles");
Eigen::Matrix<Real, Mat_t::NbEuler, 1> real_euler{euler};
mat.add_pixel(pix, real_euler);
},
"pixel"_a, "euler_angles"_a);
}
template void
add_material_crystal_plasticity_finite1_helper<twoD, 1>(py::module &);
template void
add_material_crystal_plasticity_finite1_helper<twoD, 3>(py::module &);
template void
add_material_crystal_plasticity_finite1_helper<threeD, 12>(py::module &);
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