mirror of
https://github.com/JuliaFEM/JuliaFEM.jl.git
synced 2026-09-20 01:59:59 +00:00
Jukka Aho
aabcda2e26
This function can be used to create elements from node set defined in mesh. Resulting elements are of type Poi1, that is, they don't have any volume but it's still possible to add boundary conditions to them which are then enforced in discrete sense.
61 lines
1.9 KiB
Julia
61 lines
1.9 KiB
Julia
# This file is a part of JuliaFEM.
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# License is MIT: see https://github.com/JuliaFEM/JuliaFEM.jl/blob/master/LICENSE.md
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using AbaqusReader
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function abaqus_read_mesh(fn::String)
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m = AbaqusReader.abaqus_read_mesh(fn)
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return Mesh(m)
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end
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"""
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create_surface_elements(mesh::Mesh, surface_name::Symbol)
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Create a set of surface elements from solid elements.
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Notation follow what is defined in ABAQUS. For example, if solid elements
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are Tet10, surface elements will be Tri6 and they can be used to define
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boundary conditions.
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"""
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function create_surface_elements(mesh::Mesh, surface_name::Symbol)
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elements = Element[]
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for (elid, elsi) in mesh.surface_sets[surface_name]
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elty = mesh.element_types[elid]
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elco = mesh.elements[elid]
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chel, chcon = AbaqusReader.create_surface_element(elty, elsi, elco)
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ch = Element(getfield(JuliaFEM, chel), chcon)
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push!(elements, ch)
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end
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update!(elements, "geometry", mesh.nodes)
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return elements
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end
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"""
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create_surface_elements(mesh::Mesh, surface_name::String)
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Create a set of surface elements from solid elements.
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Notation follow what is defined in ABAQUS. For example, if solid elements
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are Tet10, surface elements will be Tri6 and they can be used to define
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boundary conditions.
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"""
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function create_surface_elements(mesh::Mesh, surface_name::String)
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return create_surface_elements(mesh, Symbol(surface_name))
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end
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"""
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create_nodal_elements(mesh::Mesh, node_set_name::String)
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Create a set of "nodal" elements from node set.
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Nodal elements are of type Poi1. In principle they don't have volume and it's
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not possible to integrate over them. It is however possible to add boundary
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conditions to them.
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"""
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function create_nodal_elements(mesh::Mesh, node_set_name::String)
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node_ids = mesh.node_sets[Symbol(node_set_name)]
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elements = [Element(Poi1, [j]) for j in node_ids]
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update!(elements, "geometry", mesh.nodes)
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return elements
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end
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