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notation-kelvin_03.cc
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notation-kelvin_03.cc
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// ---------------------------------------------------------------------
//
// Copyright (C) 2017 - 2020 by the deal.II authors
//
// This file is part of the deal.II library.
//
// The deal.II library is free software; you can use it, 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 2.1 of the License, or (at your option) any later version.
// The full text of the license can be found in the file LICENSE.md at
// the top level directory of deal.II.
//
// ---------------------------------------------------------------------
// Check the scaling factors used during conversion between
// Tensor and Kelvin notation
#include <deal.II/base/symmetric_tensor.h>
#include <deal.II/base/tensor.h>
#include <deal.II/lac/full_matrix.h>
#include <deal.II/lac/vector.h>
#include <deal.II/physics/notation.h>
#include "../tests.h"
using namespace dealii::Physics;
template <int dim, typename Number>
void
initialize(Tensor<0, dim, Number> &x)
{
x = 1.0;
}
template <int dim, typename Number>
void
initialize(Tensor<1, dim, Number> &x)
{
for (unsigned int i = 0; i < x.n_independent_components; ++i)
x[i] = 1.0;
}
template <int dim, typename Number>
void
initialize(Tensor<2, dim, Number> &x)
{
for (unsigned int i = 0; i < dim; ++i)
for (unsigned int j = 0; j < dim; ++j)
{
x[i][j] = 1.0;
}
}
template <int dim, typename Number>
void
initialize(SymmetricTensor<2, dim, Number> &x)
{
for (unsigned int i = 0; i < dim; ++i)
for (unsigned int j = i; j < dim; ++j)
{
x[i][j] = 1.0;
}
}
template <int dim, typename Number>
void
initialize(Tensor<3, dim, Number> &x)
{
for (unsigned int i = 0; i < dim; ++i)
for (unsigned int j = 0; j < dim; ++j)
for (unsigned int k = 0; k < dim; ++k)
{
x[i][j][k] = 1.0;
}
}
template <int dim, typename Number>
void
initialize(Tensor<4, dim, Number> &x)
{
for (unsigned int i = 0; i < dim; ++i)
for (unsigned int j = 0; j < dim; ++j)
for (unsigned int k = 0; k < dim; ++k)
for (unsigned int l = 0; l < dim; ++l)
{
x[i][j][k][l] = 1.0;
}
}
template <int dim, typename Number>
void
initialize(SymmetricTensor<4, dim, Number> &x)
{
for (unsigned int i = 0; i < dim; ++i)
for (unsigned int j = i; j < dim; ++j)
for (unsigned int k = 0; k < dim; ++k)
for (unsigned int l = k; l < dim; ++l)
{
x[i][j][k][l] = 1.0;
}
}
template <int dim>
void
test_scalars()
{
const double A = 1.0;
const double C = 1.0;
const Vector<double> vA = Notation::Kelvin::to_vector(A);
const FullMatrix<double> mC = Notation::Kelvin::to_matrix(C);
deallog.push("Scalar");
{
deallog << "Vector" << std::endl;
vA.print(deallog.get_file_stream());
deallog << "Matrix" << std::endl;
mC.print_formatted(deallog.get_file_stream());
}
deallog.pop();
}
template <int rank, int dim>
void
test_tensors_012()
{
static_assert((rank == 0 || rank == 1 || rank == 2),
"Must be rank 0, 1 or 2");
Tensor<rank, dim, double> A;
Tensor<rank, dim, double> C;
initialize(A);
initialize(C);
const Vector<double> vA = Notation::Kelvin::to_vector(A);
const FullMatrix<double> mC = Notation::Kelvin::to_matrix(C);
const std::string name = std::string("Rank-") +
Utilities::int_to_string(rank) +
std::string(" tensor");
deallog.push(name);
{
deallog << "Vector" << std::endl;
vA.print(deallog.get_file_stream());
deallog << "Matrix" << std::endl;
mC.print_formatted(deallog.get_file_stream());
}
deallog.pop();
}
template <int dim>
void
test_tensor_3()
{
// Non-symmetric tensor: Version 1
{
Tensor<3, dim, double> C;
initialize(C);
const FullMatrix<double> mC =
Notation::Kelvin::to_matrix<dim, Tensor<1, dim>, Tensor<2, dim>>(C);
deallog.push("Rank-3 tensor: NSymm 1");
{
deallog << "Matrix" << std::endl;
mC.print_formatted(deallog.get_file_stream());
}
deallog.pop();
}
// Non-symmetric tensor: Version 2
{
Tensor<3, dim, double> C;
initialize(C);
const FullMatrix<double> mC =
Notation::Kelvin::to_matrix<dim, Tensor<2, dim>, Tensor<1, dim>>(C);
deallog.push("Rank-3 tensor: NSymm 2");
{
deallog << "Matrix" << std::endl;
mC.print_formatted(deallog.get_file_stream());
}
deallog.pop();
}
// Symmetric tensor: Version 1
{
Tensor<3, dim, double> C;
initialize(C);
const FullMatrix<double> mC =
Notation::Kelvin::to_matrix<dim, Tensor<1, dim>, SymmetricTensor<2, dim>>(
C);
deallog.push("Rank-3 tensor: Symm 1");
{
deallog << "Matrix" << std::endl;
mC.print_formatted(deallog.get_file_stream());
}
deallog.pop();
}
// Symmetric tensor: Version 2
{
Tensor<3, dim, double> C;
initialize(C);
const FullMatrix<double> mC =
Notation::Kelvin::to_matrix<dim, SymmetricTensor<2, dim>, Tensor<1, dim>>(
C);
deallog.push("Rank-3 tensor: Symm 2");
{
deallog << "Matrix" << std::endl;
mC.print_formatted(deallog.get_file_stream());
}
deallog.pop();
}
}
template <int dim>
void
test_tensor_4()
{
Tensor<4, dim, double> C;
initialize(C);
const FullMatrix<double> mC = Notation::Kelvin::to_matrix(C);
deallog.push("Rank-4 tensor");
{
deallog << "Matrix" << std::endl;
mC.print_formatted(deallog.get_file_stream());
}
deallog.pop();
}
template <int dim>
void
test_symmetric_tensor_2()
{
SymmetricTensor<2, dim, double> A;
SymmetricTensor<2, dim, double> C;
initialize(A);
initialize(C);
const Vector<double> vA = Notation::Kelvin::to_vector(A);
const FullMatrix<double> mC = Notation::Kelvin::to_matrix(C);
deallog.push("Rank-2 symm tensor");
{
deallog << "Vector" << std::endl;
vA.print(deallog.get_file_stream());
deallog << "Matrix" << std::endl;
mC.print_formatted(deallog.get_file_stream());
}
deallog.pop();
}
template <int dim>
void
test_symmetric_tensor_4()
{
SymmetricTensor<4, dim, double> C;
initialize(C);
const FullMatrix<double> mC = Notation::Kelvin::to_matrix(C);
deallog.push("Rank-4 symm tensor");
{
deallog << "Matrix" << std::endl;
mC.print_formatted(deallog.get_file_stream());
}
deallog.pop();
}
template <int dim>
void
test_tensors()
{
deallog.push(Utilities::int_to_string(dim));
{
test_scalars<dim>();
test_tensors_012<0, dim>();
test_tensors_012<1, dim>();
test_tensors_012<2, dim>();
test_tensor_3<dim>();
test_tensor_4<dim>();
test_symmetric_tensor_2<dim>();
test_symmetric_tensor_4<dim>();
deallog << "OK" << std::endl;
}
deallog.pop();
}
int
main()
{
initlog();
test_tensors<2>();
test_tensors<3>();
deallog << "OK" << std::endl;
}