mirror of
https://github.com/JuliaFEM/JuliaFEM.jl.git
synced 2026-09-09 12:42:19 +00:00
Jukka Aho
ca7e2904cf
* Fix deprecation warnings from tests * Refactor tests so that ´@testset` is usually called in master file `runtests.jl`, not inside test file. Later on we can convert tests to examples. * Syntax of tests now follow more closely syntax used currently in JuliaFEM. We have had earlier studies with different kind of syntaxes, now we have kind of explicit way to do things.
91 lines
3.3 KiB
Julia
91 lines
3.3 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 JuliaFEM, Test
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# test continuum 3d linear elasticity with surface load
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X = Dict(1 => [0.0, 0.0, 0.0],
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2 => [1.0, 0.0, 0.0],
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3 => [1.0, 1.0, 0.0],
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4 => [0.0, 1.0, 0.0],
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5 => [0.0, 0.0, 1.0],
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6 => [1.0, 0.0, 1.0],
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7 => [1.0, 1.0, 1.0],
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8 => [0.0, 1.0, 1.0])
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element1 = Element(Hex8, (1, 2, 3, 4, 5, 6, 7, 8))
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element2 = Element(Quad4, (5, 6, 7, 8))
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update!((element1, element2), "geometry", X)
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update!(element1, "youngs modulus", 288.0)
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update!(element1, "poissons ratio", 1/3)
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update!(element2, "displacement traction force 3", 288.0)
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update!(element1, "displacement load 3", 576.0)
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problem = Problem(Elasticity, "solve continuum block", 3)
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problem.properties.finite_strain = false
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add_elements!(problem, element1, element2)
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symxy = Element(Quad4, (1, 2, 3, 4))
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symxz = Element(Quad4, (1, 2, 6, 5))
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symyz = Element(Quad4, (1, 4, 8, 5))
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update!([symxy, symxz, symyz], "geometry", X)
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update!(symyz, "displacement 1", 0.0)
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update!(symxz, "displacement 2", 0.0)
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update!(symxy, "displacement 3", 0.0)
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bc = Problem(Dirichlet, "symmetry boundary conditions", 3, "displacement")
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add_elements!(bc, symxy, symxz, symyz)
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analysis = Analysis(Linear)
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add_problems!(analysis, problem, bc)
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run!(analysis)
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u = element1("displacement", [1.0, 1.0, 1.0], 0.0)
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u_expected = 2.0 * [-1/3, -1/3, 1.0]
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@debug("displacement at tip", u, u_expected)
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@test isapprox(u, u_expected)
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# run similar analysis for different meshes
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function solve_rod_model_elasticity(eltype)
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fn = @__DIR__() * "/testdata/rod_short.med"
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mesh = aster_read_mesh(fn, eltype)
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element_sets = join(keys(mesh.element_sets), ", ")
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@debug("element sets", element_sets)
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p1 = Problem(Elasticity, "rod", 3)
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p2 = Problem(Elasticity, "trac", 3)
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p3 = Problem(Dirichlet, "fixed", 3, "displacement")
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p4 = Problem(Dirichlet, "fixed", 3, "displacement")
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p5 = Problem(Dirichlet, "fixed", 3, "displacement")
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p1_elements = create_elements(mesh, "ROD")
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p2_elements = create_elements(mesh, "FACE2")
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p3_elements = create_elements(mesh, "FACE1")
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p4_elements = create_elements(mesh, "FACE3")
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p5_elements = create_elements(mesh, "FACE5")
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update!(p1_elements, "youngs modulus", 96.0)
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update!(p1_elements, "poissons ratio", 1/3)
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update!(p2_elements, "displacement traction force 1", 96.0)
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update!(p3_elements, "displacement 1", 0.0)
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update!(p4_elements, "displacement 2", 0.0)
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update!(p5_elements, "displacement 3", 0.0)
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add_elements!(p1, p1_elements)
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add_elements!(p2, p2_elements)
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add_elements!(p3, p3_elements)
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add_elements!(p4, p4_elements)
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add_elements!(p5, p5_elements)
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analysis = Analysis(Linear)
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add_problems!(analysis, p1, p2, p3, p4, p5)
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run!(analysis)
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u = p1("displacement", 0.0)
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u_max = maximum(maximum(ui for ui in values(u)))
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@debug("analysis of block", eltype, u_max)
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return u_max
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end
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@test isapprox(solve_rod_model_elasticity("Tet4"), 0.2)
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@test isapprox(solve_rod_model_elasticity("Tet10"), 0.2)
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@test isapprox(solve_rod_model_elasticity("Hex8"), 0.2)
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@test isapprox(solve_rod_model_elasticity("Hex20"), 0.2)
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@test isapprox(solve_rod_model_elasticity("Hex27"), 0.2)
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