-
Notifications
You must be signed in to change notification settings - Fork 22
/
create_surface_elements.jl
68 lines (60 loc) · 2.34 KB
/
create_surface_elements.jl
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
# This file is a part of JuliaFEM.
# License is MIT: see https://github.com/JuliaFEM/AbaqusReader.jl/blob/master/LICENSE
"""
element_mapping
This mapping table contains information what node ids locally match
each side of element.
"""
const element_mapping = Dict(
:Tet4 => Dict(
:S1 => (:Tri3, [1, 3, 2]),
:S2 => (:Tri3, [1, 2, 4]),
:S3 => (:Tri3, [2, 3, 4]),
:S4 => (:Tri3, [1, 4, 3])),
:Tet10 => Dict(
:S1 => (:Tri6, [1, 3, 2, 7, 6, 5]),
:S2 => (:Tri6, [1, 2, 4, 5, 9, 8]),
:S3 => (:Tri6, [2, 3, 4, 6, 10, 9]),
:S4 => (:Tri6, [1, 4, 3, 8, 10, 7])),
:Hex8 => Dict(
:S1 => (:Quad4, [1, 2, 3, 4]),
:S2 => (:Quad4, [5, 8, 7, 6]),
:S3 => (:Quad4, [1, 5, 6, 2]),
:S4 => (:Quad4, [2, 6, 7, 3]),
:S5 => (:Quad4, [3, 7, 8, 4]),
:S6 => (:Quad4, [4, 8, 5, 1])))
""" Given element code, element side and global connectivity, determine boundary
element. E.g. for Tet4 we have 4 sides S1..S4 and boundary element is of type Tri3.
"""
function create_surface_element(element_type::Symbol, element_side::Symbol,
element_connectivity::Vector{Int64})
if !haskey(element_mapping, element_type)
error("Unable to find surface element for element of type ",
"$element_type for side $element_side, update element ",
"mapping table.")
end
if !haskey(element_mapping[element_type], element_side)
error("Unable to find child element side mapping for element ",
"of type $element_type for side $element_side, update ",
"element mapping table.")
end
surfel, surfel_lconn = element_mapping[element_type][element_side]
surfel_gconn = element_connectivity[surfel_lconn]
return surfel, surfel_gconn
end
"""
create_surface_elements(mesh, surface_name)
Create surface elements for `surface` using mesh `mesh`.
Mesh can be obtained by using `abaqus_read_mesh`.
"""
function create_surface_elements(mesh::Dict, surface_name::String)
surface = mesh["surface_sets"][surface_name]
elements = mesh["elements"]
eltypes = mesh["element_types"]
result = Tuple{Symbol, Vector{Integer}}[]
for (elid, side) in surface
surface_element = create_surface_element(eltypes[elid], side, elements[elid])
push!(result, surface_element)
end
return result
end