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rAKA akantu
element_class.cc
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/**
* @file element_class.cc
* @author Nicolas Richart <nicolas.richart@epfl.ch>
* @date Tue Jul 20 10:12:44 2010
*
* @brief Common part of element_classes
*
* @section LICENSE
*
* Copyright (©) 2010-2011 EPFL (Ecole Polytechnique Fédérale de Lausanne)
* Laboratory (LSMS - Laboratoire de Simulation en Mécanique des Solides)
*
* 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 "element_class.hh"
/* -------------------------------------------------------------------------- */
__BEGIN_AKANTU__
/* -------------------------------------------------------------------------- */
template
<
ElementType
type
>
ElementKind
ElementClass
<
type
>::
kind
=
_ek_regular
;
template
<
ElementType
type
>
UInt
ElementClass
<
type
>::
nb_nodes_per_element
=
0
;
template
<
ElementType
type
>
ElementType
ElementClass
<
type
>::
p1_element_type
=
_not_defined
;
template
<
ElementType
type
>
UInt
ElementClass
<
type
>::
nb_quadrature_points
=
0
;
template
<
ElementType
type
>
UInt
ElementClass
<
type
>::
spatial_dimension
=
0
;
template
<
ElementType
type
>
ElementType
ElementClass
<
type
>::
facet_type
=
_not_defined
;
template
<
ElementType
type
>
UInt
ElementClass
<
type
>::
nb_shape_functions
=
1
;
template
<>
ElementKind
ElementClass
<
_not_defined
>::
kind
=
_ek_regular
;
template
<>
UInt
ElementClass
<
_not_defined
>::
nb_nodes_per_element
=
0
;
template
<>
ElementType
ElementClass
<
_not_defined
>::
p1_element_type
=
_not_defined
;
template
<>
UInt
ElementClass
<
_not_defined
>::
nb_quadrature_points
=
0
;
template
<>
UInt
ElementClass
<
_not_defined
>::
spatial_dimension
=
0
;
template
<>
ElementType
ElementClass
<
_not_defined
>::
facet_type
=
_not_defined
;
template
<>
UInt
ElementClass
<
_not_defined
>::
nb_shape_functions
=
1
;
template
<>
Real
ElementClass
<
_not_defined
>::
quad
[]
=
{};
template
<>
UInt
ElementClass
<
_not_defined
>::
nb_facets
=
0
;
template
<>
UInt
*
ElementClass
<
_not_defined
>::
facet_connectivity
[]
=
{};
template
<>
Real
ElementClass
<
_not_defined
>::
gauss_integration_weights
[]
=
{
2.
};
/* -------------------------------------------------------------------------- */
/* Element Kind */
/* -------------------------------------------------------------------------- */
template
<>
ElementKind
ElementClass
<
_segment_2
>::
kind
=
_ek_regular
;
template
<>
ElementKind
ElementClass
<
_segment_3
>::
kind
=
_ek_regular
;
template
<>
ElementKind
ElementClass
<
_triangle_3
>::
kind
=
_ek_regular
;
template
<>
ElementKind
ElementClass
<
_triangle_6
>::
kind
=
_ek_regular
;
template
<>
ElementKind
ElementClass
<
_tetrahedron_4
>::
kind
=
_ek_regular
;
template
<>
ElementKind
ElementClass
<
_tetrahedron_10
>::
kind
=
_ek_regular
;
template
<>
ElementKind
ElementClass
<
_quadrangle_4
>::
kind
=
_ek_regular
;
template
<>
ElementKind
ElementClass
<
_quadrangle_8
>::
kind
=
_ek_regular
;
template
<>
ElementKind
ElementClass
<
_hexahedron_8
>::
kind
=
_ek_regular
;
template
<>
ElementKind
ElementClass
<
_point
>::
kind
=
_ek_regular
;
template
<>
ElementKind
ElementClass
<
_bernoulli_beam_2
>::
kind
=
_ek_regular
;
/* -------------------------------------------------------------------------- */
#if defined(AKANTU_COHESIVE_ELEMENT)
template
<>
ElementKind
ElementClass
<
_cohesive_2d_4
>::
kind
=
_ek_cohesive
;
template
<>
ElementKind
ElementClass
<
_cohesive_2d_6
>::
kind
=
_ek_cohesive
;
#endif
/* -------------------------------------------------------------------------- */
/* Regular Elements */
/* -------------------------------------------------------------------------- */
/* -------------------------------------------------------------------------- */
template
<>
UInt
ElementClass
<
_point
>::
nb_shape_functions
=
1
;
template
<>
UInt
ElementClass
<
_point
>::
nb_nodes_per_element
=
1
;
template
<>
ElementType
ElementClass
<
_point
>::
p1_element_type
=
_point
;
template
<>
UInt
ElementClass
<
_point
>::
nb_quadrature_points
=
1
;
template
<>
Real
ElementClass
<
_point
>::
quad
[]
=
{
0
};
template
<>
ElementType
ElementClass
<
_point
>::
facet_type
=
_not_defined
;
template
<>
UInt
ElementClass
<
_point
>::
spatial_dimension
=
0
;
template
<>
UInt
ElementClass
<
_point
>::
nb_facets
=
0
;
template
<>
UInt
*
ElementClass
<
_point
>::
facet_connectivity
[]
=
{};
/* -------------------------------------------------------------------------- */
template
<>
UInt
ElementClass
<
_segment_2
>::
nb_shape_functions
=
1
;
template
<>
UInt
ElementClass
<
_segment_2
>::
nb_nodes_per_element
=
2
;
template
<>
ElementType
ElementClass
<
_segment_2
>::
p1_element_type
=
_segment_2
;
template
<>
UInt
ElementClass
<
_segment_2
>::
nb_quadrature_points
=
1
;
template
<>
Real
ElementClass
<
_segment_2
>::
quad
[]
=
{
0
};
template
<>
UInt
ElementClass
<
_segment_2
>::
spatial_dimension
=
1
;
template
<>
UInt
ElementClass
<
_segment_2
>::
nb_facets
=
2
;
template
<>
ElementType
ElementClass
<
_segment_2
>::
facet_type
=
_point
;
template
<>
UInt
ElementClass
<
_segment_2
>::
vec_facet_connectivity
[]
=
{
0
,
1
};
template
<>
UInt
*
ElementClass
<
_segment_2
>::
facet_connectivity
[]
=
{
&
vec_facet_connectivity
[
0
],
&
vec_facet_connectivity
[
1
]};
/* -------------------------------------------------------------------------- */
template
<>
UInt
ElementClass
<
_segment_3
>::
nb_shape_functions
=
1
;
template
<>
UInt
ElementClass
<
_segment_3
>::
nb_nodes_per_element
=
3
;
template
<>
ElementType
ElementClass
<
_segment_3
>::
p1_element_type
=
_segment_2
;
template
<>
UInt
ElementClass
<
_segment_3
>::
nb_quadrature_points
=
2
;
template
<>
Real
ElementClass
<
_segment_3
>::
quad
[]
=
{
-
1.
/
sqrt
(
3.
),
1.
/
sqrt
(
3.
)};
template
<>
UInt
ElementClass
<
_segment_3
>::
spatial_dimension
=
1
;
template
<>
UInt
ElementClass
<
_segment_3
>::
nb_facets
=
2
;
template
<>
ElementType
ElementClass
<
_segment_3
>::
facet_type
=
_point
;
template
<>
UInt
ElementClass
<
_segment_3
>::
vec_facet_connectivity
[]
=
{
0
,
1
};
template
<>
UInt
*
ElementClass
<
_segment_3
>::
facet_connectivity
[]
=
{
&
vec_facet_connectivity
[
0
],
&
vec_facet_connectivity
[
1
]};
/* -------------------------------------------------------------------------- */
template
<>
UInt
ElementClass
<
_triangle_3
>::
nb_shape_functions
=
1
;
template
<>
UInt
ElementClass
<
_triangle_3
>::
nb_nodes_per_element
=
3
;
template
<>
ElementType
ElementClass
<
_triangle_3
>::
p1_element_type
=
_triangle_3
;
template
<>
UInt
ElementClass
<
_triangle_3
>::
nb_quadrature_points
=
1
;
template
<>
Real
ElementClass
<
_triangle_3
>::
quad
[]
=
{
1.
/
3.
,
1.
/
3.
};
template
<>
UInt
ElementClass
<
_triangle_3
>::
spatial_dimension
=
2
;
template
<>
UInt
ElementClass
<
_triangle_3
>::
nb_facets
=
3
;
template
<>
ElementType
ElementClass
<
_triangle_3
>::
facet_type
=
_segment_2
;
template
<>
UInt
ElementClass
<
_triangle_3
>::
vec_facet_connectivity
[]
=
{
0
,
1
,
1
,
2
,
2
,
0
};
template
<>
UInt
*
ElementClass
<
_triangle_3
>::
facet_connectivity
[]
=
{
&
vec_facet_connectivity
[
0
],
&
vec_facet_connectivity
[
2
],
&
vec_facet_connectivity
[
4
]};
/* -------------------------------------------------------------------------- */
template
<>
UInt
ElementClass
<
_triangle_6
>::
nb_shape_functions
=
1
;
template
<>
UInt
ElementClass
<
_triangle_6
>::
nb_nodes_per_element
=
6
;
template
<>
ElementType
ElementClass
<
_triangle_6
>::
p1_element_type
=
_triangle_3
;
template
<>
UInt
ElementClass
<
_triangle_6
>::
nb_quadrature_points
=
3
;
template
<>
Real
ElementClass
<
_triangle_6
>::
quad
[]
=
{
1.
/
6.
,
1.
/
6.
,
2.
/
3.
,
1.
/
6.
,
1.
/
6.
,
2.
/
3.
};
template
<>
UInt
ElementClass
<
_triangle_6
>::
spatial_dimension
=
2
;
template
<>
UInt
ElementClass
<
_triangle_6
>::
nb_facets
=
3
;
template
<>
ElementType
ElementClass
<
_triangle_6
>::
facet_type
=
_segment_3
;
template
<>
UInt
ElementClass
<
_triangle_6
>::
vec_facet_connectivity
[]
=
{
0
,
1
,
3
,
1
,
2
,
4
,
2
,
0
,
5
};
template
<>
UInt
*
ElementClass
<
_triangle_6
>::
facet_connectivity
[]
=
{
&
vec_facet_connectivity
[
0
],
&
vec_facet_connectivity
[
3
],
&
vec_facet_connectivity
[
6
]};
/* -------------------------------------------------------------------------- */
template
<>
UInt
ElementClass
<
_tetrahedron_4
>::
nb_shape_functions
=
1
;
template
<>
UInt
ElementClass
<
_tetrahedron_4
>::
nb_nodes_per_element
=
4
;
template
<>
ElementType
ElementClass
<
_tetrahedron_4
>::
p1_element_type
=
_tetrahedron_4
;
template
<>
UInt
ElementClass
<
_tetrahedron_4
>::
nb_quadrature_points
=
1
;
template
<>
Real
ElementClass
<
_tetrahedron_4
>::
quad
[]
=
{
1.
/
4.
,
1.
/
4.
,
1.
/
4.
};
template
<>
UInt
ElementClass
<
_tetrahedron_4
>::
spatial_dimension
=
3
;
template
<>
UInt
ElementClass
<
_tetrahedron_4
>::
nb_facets
=
4
;
template
<>
ElementType
ElementClass
<
_tetrahedron_4
>::
facet_type
=
_triangle_3
;
template
<>
UInt
ElementClass
<
_tetrahedron_4
>::
vec_facet_connectivity
[]
=
{
0
,
2
,
1
,
1
,
2
,
3
,
2
,
0
,
3
,
0
,
1
,
3
};
template
<>
UInt
*
ElementClass
<
_tetrahedron_4
>::
facet_connectivity
[]
=
{
&
vec_facet_connectivity
[
0
],
&
vec_facet_connectivity
[
3
],
&
vec_facet_connectivity
[
6
],
&
vec_facet_connectivity
[
9
]};
/* -------------------------------------------------------------------------- */
template
<>
UInt
ElementClass
<
_tetrahedron_10
>::
nb_shape_functions
=
1
;
template
<>
UInt
ElementClass
<
_tetrahedron_10
>::
nb_nodes_per_element
=
10
;
template
<>
ElementType
ElementClass
<
_tetrahedron_10
>::
p1_element_type
=
_tetrahedron_4
;
template
<>
UInt
ElementClass
<
_tetrahedron_10
>::
nb_quadrature_points
=
4
;
template
<>
Real
ElementClass
<
_tetrahedron_10
>::
quad
[]
=
{
0.1381966011250
,
0.1381966011250
,
0.1381966011250
,
// a = (5-sqrt(5))/20
0.5854101966250
,
0.1381966011250
,
0.1381966011250
,
// b = (5+3*sqrt(5))/20
0.1381966011250
,
0.5854101966250
,
0.1381966011250
,
0.1381966011250
,
0.1381966011250
,
0.5854101966250
};
template
<>
UInt
ElementClass
<
_tetrahedron_10
>::
spatial_dimension
=
3
;
template
<>
UInt
ElementClass
<
_tetrahedron_10
>::
nb_facets
=
4
;
template
<>
ElementType
ElementClass
<
_tetrahedron_10
>::
facet_type
=
_triangle_6
;
template
<>
UInt
ElementClass
<
_tetrahedron_10
>::
vec_facet_connectivity
[]
=
{
0
,
2
,
1
,
6
,
5
,
4
,
1
,
2
,
3
,
5
,
9
,
8
,
2
,
0
,
3
,
6
,
7
,
9
,
0
,
1
,
3
,
4
,
8
,
7
};
template
<>
UInt
*
ElementClass
<
_tetrahedron_10
>::
facet_connectivity
[]
=
{
&
vec_facet_connectivity
[
0
],
&
vec_facet_connectivity
[
6
],
&
vec_facet_connectivity
[
12
],
&
vec_facet_connectivity
[
18
]};
/* -------------------------------------------------------------------------- */
template
<>
UInt
ElementClass
<
_quadrangle_4
>::
nb_shape_functions
=
1
;
template
<>
UInt
ElementClass
<
_quadrangle_4
>::
nb_nodes_per_element
=
4
;
template
<>
ElementType
ElementClass
<
_quadrangle_4
>::
p1_element_type
=
_quadrangle_4
;
template
<>
UInt
ElementClass
<
_quadrangle_4
>::
nb_quadrature_points
=
4
;
//template<> Real ElementClass<_quadrangle_4>::quad[] = {0, 0};
template
<>
Real
ElementClass
<
_quadrangle_4
>::
quad
[]
=
{
-
1.
/
std
::
sqrt
(
3
),
-
1.
/
sqrt
(
3
),
1.
/
sqrt
(
3
),
-
1.
/
sqrt
(
3
),
1.
/
sqrt
(
3
),
1.
/
sqrt
(
3
),
-
1.
/
sqrt
(
3
),
1.
/
sqrt
(
3
)};
template
<>
UInt
ElementClass
<
_quadrangle_4
>::
spatial_dimension
=
2
;
template
<>
UInt
ElementClass
<
_quadrangle_4
>::
nb_facets
=
4
;
template
<>
ElementType
ElementClass
<
_quadrangle_4
>::
facet_type
=
_segment_2
;
template
<>
UInt
ElementClass
<
_quadrangle_4
>::
vec_facet_connectivity
[]
=
{
0
,
1
,
1
,
2
,
2
,
3
,
3
,
0
};
template
<>
UInt
*
ElementClass
<
_quadrangle_4
>::
facet_connectivity
[]
=
{
&
vec_facet_connectivity
[
0
],
&
vec_facet_connectivity
[
2
],
&
vec_facet_connectivity
[
4
],
&
vec_facet_connectivity
[
6
]};
/* -------------------------------------------------------------------------- */
template
<>
UInt
ElementClass
<
_quadrangle_8
>::
nb_shape_functions
=
1
;
template
<>
UInt
ElementClass
<
_quadrangle_8
>::
nb_nodes_per_element
=
8
;
template
<>
ElementType
ElementClass
<
_quadrangle_8
>::
p1_element_type
=
_quadrangle_8
;
template
<>
UInt
ElementClass
<
_quadrangle_8
>::
nb_quadrature_points
=
9
;
template
<>
Real
ElementClass
<
_quadrangle_8
>::
quad
[]
=
{
0.
,
0.
,
sqrt
(
3.
/
5.
),
sqrt
(
3.
/
5.
),
-
sqrt
(
3.
/
5.
),
sqrt
(
3.
/
5.
),
-
sqrt
(
3.
/
5.
),
-
sqrt
(
3.
/
5.
),
sqrt
(
3.
/
5.
),
-
sqrt
(
3.
/
5.
),
0.
,
sqrt
(
3.
/
5.
),
-
sqrt
(
3.
/
5.
),
0.
,
0.
,
-
sqrt
(
3.
/
5.
),
sqrt
(
3.
/
5.
),
0.
};
template
<>
UInt
ElementClass
<
_quadrangle_8
>::
spatial_dimension
=
2
;
template
<>
UInt
ElementClass
<
_quadrangle_8
>::
nb_facets
=
4
;
template
<>
ElementType
ElementClass
<
_quadrangle_8
>::
facet_type
=
_segment_3
;
template
<>
UInt
ElementClass
<
_quadrangle_8
>::
vec_facet_connectivity
[]
=
{
0
,
1
,
4
,
1
,
2
,
5
,
2
,
3
,
6
,
3
,
0
,
7
};
template
<>
UInt
*
ElementClass
<
_quadrangle_8
>::
facet_connectivity
[]
=
{
vec_facet_connectivity
+
0
,
vec_facet_connectivity
+
3
,
vec_facet_connectivity
+
6
,
vec_facet_connectivity
+
9
};
/* -------------------------------------------------------------------------- */
template
<>
UInt
ElementClass
<
_hexahedron_8
>::
nb_shape_functions
=
1
;
template
<>
UInt
ElementClass
<
_hexahedron_8
>::
nb_nodes_per_element
=
8
;
template
<>
ElementType
ElementClass
<
_hexahedron_8
>::
p1_element_type
=
_hexahedron_8
;
template
<>
UInt
ElementClass
<
_hexahedron_8
>::
nb_quadrature_points
=
8
;
template
<>
Real
ElementClass
<
_hexahedron_8
>::
quad
[]
=
{
-
1.
/
sqrt
(
3.
),
-
1.
/
sqrt
(
3.
),
-
1.
/
sqrt
(
3.
),
1.
/
sqrt
(
3.
),
-
1.
/
sqrt
(
3.
),
-
1.
/
sqrt
(
3.
),
1.
/
sqrt
(
3.
),
1.
/
sqrt
(
3.
),
-
1.
/
sqrt
(
3.
),
-
1.
/
sqrt
(
3.
),
1.
/
sqrt
(
3.
),
-
1.
/
sqrt
(
3.
),
-
1.
/
sqrt
(
3.
),
-
1.
/
sqrt
(
3.
),
1.
/
sqrt
(
3.
),
1.
/
sqrt
(
3.
),
-
1.
/
sqrt
(
3.
),
1.
/
sqrt
(
3.
),
1.
/
sqrt
(
3.
),
1.
/
sqrt
(
3.
),
1.
/
sqrt
(
3.
),
-
1.
/
sqrt
(
3.
),
1.
/
sqrt
(
3.
),
1.
/
sqrt
(
3.
)};
template
<>
UInt
ElementClass
<
_hexahedron_8
>::
spatial_dimension
=
3
;
template
<>
UInt
ElementClass
<
_hexahedron_8
>::
nb_facets
=
6
;
template
<>
ElementType
ElementClass
<
_hexahedron_8
>::
facet_type
=
_quadrangle_4
;
template
<>
UInt
ElementClass
<
_hexahedron_8
>::
vec_facet_connectivity
[]
=
{
0
,
1
,
2
,
3
,
0
,
1
,
5
,
4
,
1
,
2
,
6
,
5
,
2
,
3
,
7
,
6
,
3
,
0
,
4
,
7
,
4
,
5
,
6
,
7
};
template
<>
UInt
*
ElementClass
<
_hexahedron_8
>::
facet_connectivity
[]
=
{
&
vec_facet_connectivity
[
0
],
&
vec_facet_connectivity
[
4
],
&
vec_facet_connectivity
[
8
],
&
vec_facet_connectivity
[
12
],
&
vec_facet_connectivity
[
16
],
&
vec_facet_connectivity
[
20
]};
/* -------------------------------------------------------------------------- */
/* -------------------------------------------------------------------------- */
/* Structural elements */
/* -------------------------------------------------------------------------- */
template
<>
UInt
ElementClass
<
_bernoulli_beam_2
>::
nb_nodes_per_element
=
2
;
template
<>
ElementType
ElementClass
<
_bernoulli_beam_2
>::
p1_element_type
=
_bernoulli_beam_2
;
template
<>
UInt
ElementClass
<
_bernoulli_beam_2
>::
nb_quadrature_points
=
2
;
template
<>
Real
ElementClass
<
_bernoulli_beam_2
>::
quad
[]
=
{
-
1
/
sqrt
(
3
),
0
,
1
/
sqrt
(
3
),
0
};
template
<>
UInt
ElementClass
<
_bernoulli_beam_2
>::
spatial_dimension
=
2
;
template
<>
UInt
ElementClass
<
_bernoulli_beam_2
>::
nb_facets
=
2
;
template
<>
ElementType
ElementClass
<
_bernoulli_beam_2
>::
facet_type
=
_point
;
template
<>
UInt
ElementClass
<
_bernoulli_beam_2
>::
vec_facet_connectivity
[]
=
{
0
,
1
};
template
<>
UInt
*
ElementClass
<
_bernoulli_beam_2
>::
facet_connectivity
[]
=
{
&
vec_facet_connectivity
[
0
],
&
vec_facet_connectivity
[
1
]};
template
<>
UInt
ElementClass
<
_bernoulli_beam_2
>::
nb_shape_functions
=
5
;
/* -------------------------------------------------------------------------- */
/* -------------------------------------------------------------------------- */
/* Gauss integration */
/* -------------------------------------------------------------------------- */
template
<>
Real
ElementClass
<
_segment_2
>::
gauss_integration_weights
[]
=
{
2.
};
template
<>
Real
ElementClass
<
_segment_3
>::
gauss_integration_weights
[]
=
{
1.
,
1.
};
template
<>
Real
ElementClass
<
_triangle_3
>::
gauss_integration_weights
[]
=
{
1.
/
2.
};
template
<>
Real
ElementClass
<
_triangle_6
>::
gauss_integration_weights
[]
=
{
1.
/
6.
,
1.
/
6.
,
1.
/
6.
};
template
<>
Real
ElementClass
<
_tetrahedron_4
>::
gauss_integration_weights
[]
=
{
1.
/
6.
};
template
<>
Real
ElementClass
<
_tetrahedron_10
>::
gauss_integration_weights
[]
=
{
1.
/
24.
,
1.
/
24.
,
1.
/
24.
,
1.
/
24.
};
template
<>
Real
ElementClass
<
_quadrangle_4
>::
gauss_integration_weights
[]
=
{
1.
,
1.
,
1.
,
1.
};
template
<>
Real
ElementClass
<
_quadrangle_8
>::
gauss_integration_weights
[]
=
{
64.
/
81.
,
25.
/
81.
,
25.
/
81.
,
25.
/
81.
,
25.
/
81.
,
40.
/
81.
,
40.
/
81.
,
40.
/
81.
,
40.
/
81.
};
template
<>
Real
ElementClass
<
_hexahedron_8
>::
gauss_integration_weights
[]
=
{
1.
,
1.
,
1.
,
1.
,
1.
,
1.
,
1.
,
1.
};
template
<>
Real
ElementClass
<
_point
>::
gauss_integration_weights
[]
=
{
1.
};
template
<>
Real
ElementClass
<
_bernoulli_beam_2
>::
gauss_integration_weights
[]
=
{
1.
,
1.
};
__END_AKANTU__
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