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https://github.com/JuliaFEM/JuliaFEM.jl.git
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Jukka Aho
ffe08202f1
Tests core DOF system functionality.
Validates DOF{T,E} types and DOFSet specifications.
67 lines
2.0 KiB
Julia
67 lines
2.0 KiB
Julia
using JuliaFEM
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using Tensors
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# Create simple 2-element mesh (2 hexes sharing a face)
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# Hex 1: nodes 1-8
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# Hex 2: nodes 5-8, 9-12 (shares face 5-6-7-8 with Hex 1)
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nodes = [
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Vec{3}((0.0, 0.0, 0.0)), # 1
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Vec{3}((1.0, 0.0, 0.0)), # 2
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Vec{3}((1.0, 1.0, 0.0)), # 3
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Vec{3}((0.0, 1.0, 0.0)), # 4
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Vec{3}((0.0, 0.0, 1.0)), # 5
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Vec{3}((1.0, 0.0, 1.0)), # 6
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Vec{3}((1.0, 1.0, 1.0)), # 7
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Vec{3}((0.0, 1.0, 1.0)), # 8
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Vec{3}((0.0, 0.0, 2.0)), # 9
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Vec{3}((1.0, 0.0, 2.0)), # 10
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Vec{3}((1.0, 1.0, 2.0)), # 11
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Vec{3}((0.0, 1.0, 2.0)), # 12
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]
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connectivity = [
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NTuple{8,UInt32}((1, 2, 3, 4, 5, 6, 7, 8)),
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NTuple{8,UInt32}((5, 6, 7, 8, 9, 10, 11, 12)),
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]
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element_sets = Dict{Symbol,Set{UInt32}}(:all => Set(UInt32[1, 2]))
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mesh = Mesh{8,Hexahedron{8}}(nodes, connectivity, element_sets)
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println("Mesh created:")
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println(" Nodes: ", length(nodes))
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println(" Elements: ", length(connectivity))
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# Create elements with 3D displacement DOFs (Vec{3} at vertices)
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println("\nCreating elements with DOF{Vec{3}, Vertex}...")
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ElemType = Element{Hexahedron{8}, Lagrange{1}, DOF{Vec{3}, Vertex}}
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elements, mgr = create_elements!(mesh, ElemType)
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println("Elements created:")
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println(" Element count: ", length(elements))
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println(" Total DOFs: ", mgr.total_dofs)
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println(" Expected DOFs: ", 3 * length(nodes), " (3 per node)")
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# Check DOF indices for first element
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println("\nElement 1 DOF indices:")
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println(" ", elements[1].dof_indices)
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println(" Length: ", length(elements[1].dof_indices))
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println(" Expected: 24 (8 nodes × 3 DOFs)")
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# Check DOF indices for second element (should reuse nodes 5-8)
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println("\nElement 2 DOF indices:")
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println(" ", elements[2].dof_indices)
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println(" Length: ", length(elements[2].dof_indices))
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println(" Expected: 24 (8 nodes × 3 DOFs)")
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# Verify node-to-DOF mapping
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println("\nNode-to-DOF mapping:")
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for node_id in [1, 5, 9]
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dofs = get_node_dofs(mgr, node_id)
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println(" Node $node_id: DOFs $dofs")
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end
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println("\n✓ DOF system test complete!")
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