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rAKA/python/py_structural_mechanics_model.cc
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py_structural_mechanics_model.cc
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/**
* Copyright (©) 2021-2023 EPFL (Ecole Polytechnique Fédérale de Lausanne)
* Laboratory (LSMS - Laboratoire de Simulation en Mécanique des Solides)
*
* This file is part of Akantu
*
* 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 "py_aka_array.hh"
/* -------------------------------------------------------------------------- */
#include <structural_mechanics_model.hh>
/* -------------------------------------------------------------------------- */
#include <pybind11/pybind11.h>
/* -------------------------------------------------------------------------- */
namespace py = pybind11;
/* -------------------------------------------------------------------------- */
namespace akantu {
#define def_function_nocopy(func_name) \
def( \
#func_name, \
[](StructuralMechanicsModel & self) -> decltype(auto) { \
return self.func_name(); \
}, \
py::return_value_policy::reference)
#define def_function_(func_name) \
def(#func_name, [](StructuralMechanicsModel & self) -> decltype(auto) { \
return self.func_name(); \
})
#define def_plainmember(M) def_readwrite(#M, &StructuralMaterial::M)
/* -------------------------------------------------------------------------- */
void register_structural_mechanics_model(pybind11::module & mod) {
/* First we have to register the material class
* The wrapper aims to mimic the behaviour of the real material.
*/
py::class_<StructuralMaterial>(mod, "StructuralMaterial")
.def(py::init<>())
.def(py::init<const StructuralMaterial &>())
.def_plainmember(E)
.def_plainmember(A)
.def_plainmember(I)
.def_plainmember(Iz)
.def_plainmember(Iy)
.def_plainmember(GJ)
.def_plainmember(rho)
.def_plainmember(t)
.def_plainmember(nu);
/* Now we create the structural model wrapper
* Note that this is basically a port from the solid mechanic part.
*/
py::class_<StructuralMechanicsModel, Model>(mod, "StructuralMechanicsModel")
.def(py::init<Mesh &, UInt, const ID &>(), py::arg("mesh"),
py::arg("spatial_dimension") = _all_dimensions,
py::arg("id") = "structural_mechanics_model")
.def(
"initFull",
[](StructuralMechanicsModel & self,
const AnalysisMethod & analysis_method) -> void {
self.initFull(_analysis_method = analysis_method);
},
py::arg("_analysis_method"))
.def("initFull",
[](StructuralMechanicsModel & self) -> void { self.initFull(); })
.def_function_nocopy(getExternalForce)
.def_function_nocopy(getDisplacement)
.def_function_nocopy(getInternalForce)
.def_function_nocopy(getVelocity)
.def_function_nocopy(getAcceleration)
.def_function_nocopy(getInternalForce)
.def_function_nocopy(getBlockedDOFs)
.def_function_nocopy(getMesh)
.def("setTimeStep", &StructuralMechanicsModel::setTimeStep,
py::arg("time_step"), py::arg("solver_id") = "")
.def(
"getElementMaterial",
[](StructuralMechanicsModel & self, ElementType type,
GhostType ghost_type) -> decltype(auto) {
return self.getElementMaterial(type, ghost_type);
},
"This function returns the map that maps elements to materials.",
py::arg("type"), py::arg("ghost_type") = _not_ghost,
py::return_value_policy::reference)
.def(
"getMaterialByElement",
[](StructuralMechanicsModel & self, Element element)
-> decltype(auto) { return self.getMaterialByElement(element); },
"This function returns the `StructuralMaterial` instance that is "
"associated with element `element`.",
py::arg("element"), py::return_value_policy::reference)
.def(
"addMaterial",
[](StructuralMechanicsModel & self, StructuralMaterial & mat,
const ID & name) -> UInt { return self.addMaterial(mat, name); },
"This function adds the `StructuralMaterial` `mat` to `self`."
" The function returns the ID of the new material.",
py::arg("mat"), py::arg("name") = "")
.def(
"getMaterial",
[](const StructuralMechanicsModel & self,
UInt material_index) -> StructuralMaterial {
return self.getMaterial(material_index);
},
"This function returns the `i`th material of `self`."
" The function returns a copy of the material.",
py::arg("material_index"), py::return_value_policy::copy)
.def(
"getMaterial",
[](const StructuralMechanicsModel & self, const ID & name)
-> StructuralMaterial { return self.getMaterial(name); },
"This function returns the `i`th material of `self`."
" The function returns a copy of the material.",
py::arg("material_index"), py::return_value_policy::copy)
.def(
"getNbMaterials",
[](StructuralMechanicsModel & self) { return self.getNbMaterials(); },
"Returns the number of different materials inside `self`.")
.def("getKineticEnergy", &StructuralMechanicsModel::getKineticEnergy,
"Compute kinetic energy")
.def("getPotentialEnergy", &StructuralMechanicsModel::getPotentialEnergy,
"Compute potential energy")
.def("getEnergy", &StructuralMechanicsModel::getEnergy,
"Compute the specified energy")
.def(
"getLumpedMass",
[](const StructuralMechanicsModel & self) -> decltype(auto) {
return self.getLumpedMass();
},
py::return_value_policy::reference_internal)
.def(
"getMass",
[](const StructuralMechanicsModel & self) -> decltype(auto) {
return self.getMass();
},
py::return_value_policy::reference_internal)
.def("assembleLumpedMassMatrix",
&StructuralMechanicsModel::assembleLumpedMassMatrix,
"Assembles the lumped mass matrix")
.def("hasLumpedMass", &StructuralMechanicsModel::hasLumpedMass);
}
} // namespace akantu
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