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ElementHex8.hpp
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Tue, May 7, 16:07

ElementHex8.hpp
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/* =================================================================================================
(c - GPLv3) T.W.J. de Geus (Tom) | tom@geus.me | www.geus.me | github.com/tdegeus/GooseFEM
================================================================================================= */
#include <GooseFEM/GooseFEM.h>
#include <pybind11/pybind11.h>
#include <pyxtensor/pyxtensor.hpp>
namespace py = pybind11;
void init_ElementHex8(py::module& m)
{
py::class_<GooseFEM::Element::Hex8::Quadrature>(m, "Quadrature")
.def(py::init<const xt::xtensor<double, 3>&>(), "Quadrature", py::arg("x"))
.def(
py::init<
const xt::xtensor<double, 3>&,
const xt::xtensor<double, 2>&,
const xt::xtensor<double, 1>&>(),
"Quadrature",
py::arg("x"),
py::arg("xi"),
py::arg("w"))
.def(
"update_x",
&GooseFEM::Element::Hex8::Quadrature::update_x,
"Update the nodal positions")
.def("nelem", &GooseFEM::Element::Hex8::Quadrature::nelem, "Number of elements")
.def("nne", &GooseFEM::Element::Hex8::Quadrature::nne, "Number of nodes per element")
.def("ndim", &GooseFEM::Element::Hex8::Quadrature::ndim, "Number of dimensions")
.def("nip", &GooseFEM::Element::Hex8::Quadrature::nip, "Number of integration points")
.def("dV", &GooseFEM::Element::Hex8::Quadrature::dV, "Integration point volume (qscalar)")
.def(
"GradN_vector",
py::overload_cast<const xt::xtensor<double, 3>&>(
&GooseFEM::Element::Hex8::Quadrature::GradN_vector, py::const_),
"Dyadic product, returns 'qtensor'",
py::arg("elemvec"))
.def(
"GradN_vector_T",
py::overload_cast<const xt::xtensor<double, 3>&>(
&GooseFEM::Element::Hex8::Quadrature::GradN_vector_T, py::const_),
"Dyadic product, returns 'qtensor'",
py::arg("elemvec"))
.def(
"SymGradN_vector",
py::overload_cast<const xt::xtensor<double, 3>&>(
&GooseFEM::Element::Hex8::Quadrature::SymGradN_vector, py::const_),
"Dyadic product, returns 'qtensor'",
py::arg("elemvec"))
.def(
"Int_N_scalar_NT_dV",
py::overload_cast<const xt::xtensor<double, 2>&>(
&GooseFEM::Element::Hex8::Quadrature::Int_N_scalar_NT_dV, py::const_),
"Integration, returns 'elemmat'",
py::arg("qscalar"))
.def(
"Int_gradN_dot_tensor2_dV",
py::overload_cast<const xt::xtensor<double, 4>&>(
&GooseFEM::Element::Hex8::Quadrature::Int_gradN_dot_tensor2_dV, py::const_),
"Integration, returns 'elemvec'",
py::arg("qtensor"))
.def(
"Int_gradN_dot_tensor4_dot_gradNT_dV",
py::overload_cast<const xt::xtensor<double, 6>&>(
&GooseFEM::Element::Hex8::Quadrature::Int_gradN_dot_tensor4_dot_gradNT_dV,
py::const_),
"Integration, returns 'elemvec'",
py::arg("qtensor"))
.def(
"AsTensor",
(xt::xarray<double>(GooseFEM::Element::Hex8::Quadrature::*)(
size_t, const xt::xtensor<double, 2>&) const) &
GooseFEM::Element::Hex8::Quadrature::AsTensor,
"Convert 'qscalar' to 'qtensor' of certain rank")
.def(
"AllocateQtensor",
(xt::xarray<double>(GooseFEM::Element::Hex8::Quadrature::*)(
size_t) const) &
GooseFEM::Element::Hex8::Quadrature::AllocateQtensor,
"Allocate 'qtensor'",
py::arg("rank"))
.def(
"AllocateQtensor",
(xt::xarray<double>(GooseFEM::Element::Hex8::Quadrature::*)(
size_t, double) const) &
GooseFEM::Element::Hex8::Quadrature::AllocateQtensor,
"Allocate 'qtensor'",
py::arg("rank"),
py::arg("val"))
.def(
"AllocateQscalar",
py::overload_cast<>(
&GooseFEM::Element::Hex8::Quadrature::AllocateQscalar, py::const_),
"Allocate 'qscalar'")
.def(
"AllocateQscalar",
py::overload_cast<double>(
&GooseFEM::Element::Hex8::Quadrature::AllocateQscalar, py::const_),
"Allocate 'qscalar'",
py::arg("val"))
.def("__repr__", [](const GooseFEM::Element::Hex8::Quadrature&) {
return "<GooseFEM.Element.Hex8.Quadrature>";
});
}
void init_ElementHex8Gauss(py::module& m)
{
m.def("nip", &GooseFEM::Element::Hex8::Gauss::nip, "Return number of integration point");
m.def("xi", &GooseFEM::Element::Hex8::Gauss::xi, "Return integration point coordinates");
m.def("w", &GooseFEM::Element::Hex8::Gauss::w, "Return integration point weights");
}
void init_ElementHex8Nodal(py::module& m)
{
m.def("nip", &GooseFEM::Element::Hex8::Nodal::nip, "Return number of integration point");
m.def("xi", &GooseFEM::Element::Hex8::Nodal::xi, "Return integration point coordinates");
m.def("w", &GooseFEM::Element::Hex8::Nodal::w, "Return integration point weights");
}

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