mirror of
https://github.com/JuliaFEM/JuliaFEM.jl.git
synced 2026-09-20 01:59:59 +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.
77 lines
2.4 KiB
Julia
77 lines
2.4 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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using JuliaFEM.Preprocess
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using SparseArrays, Test
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# test tet4 + volume load
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X = Dict(1 => [2.0, 3.0, 4.0], 2 => [6.0, 3.0, 2.0],
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3 => [2.0, 5.0, 1.0], 4 => [4.0, 3.0, 6.0])
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element1 = Element(Tet4, (1, 2, 3, 4))
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element2 = Element(Tri3, (1, 2, 3))
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update!((element1, element2), "geometry", X)
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update!(element1, "youngs modulus", 96.0)
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update!(element1, "poissons ratio", 1/3)
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update!(element1, "displacement load 3", 784.0/110.0)
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update!(element2, "displacement 1", 0.0)
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update!(element2, "displacement 2", 0.0)
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update!(element2, "displacement 3", 0.0)
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problem1 = Problem(Elasticity, "tetra", 3)
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problem2 = Problem(Dirichlet, "bc", 3, "displacement")
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add_element!(problem1, element1)
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add_element!(problem2, element2)
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analysis = Analysis(Linear)
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add_problems!(analysis, problem1, problem2)
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run!(analysis)
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u4 = problem1("displacement", 0.0)[4]
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u4_expected = [-3.0/220.0, -9.0/220.0, 1.0/10.0]
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@test isapprox(u4, u4_expected)
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# tet4 + surface load
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element3 = Element(Tri3, (4, 3, 2))
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update!(element3, "geometry", X)
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update!(element3, "surface pressure", -96.0)
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update!(element1, "displacement load 3", 0.0)
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add_element!(problem1, element3)
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run!(analysis)
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u4 = problem1("displacement", 0.0)[4]
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u4_expected = [-17.0/14.0, -27.0/14.0, 1.0]
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@debug("displacement at node 4", u4, u4_expected)
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#= TODO: Fix test. Make linear perturbation solver.
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@testset "test tet4 + buckling" begin
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X = Dict{Int, Vector{Float64}}(
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1 => [2.0, 3.0, 4.0],
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2 => [6.0, 3.0, 2.0],
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3 => [2.0, 5.0, 1.0],
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4 => [4.0, 3.0, 6.0])
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u = Dict{Int, Vector{Float64}}(
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1 => [0.0, 0.0, 0.0],
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2 => [0.0, 0.0, 0.0],
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3 => [0.0, 0.0, 0.0],
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4 => [-0.25, -0.25, -0.25])
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e1 = Element(Tet4, [1, 2, 3, 4])
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update!(e1, "geometry", X)
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update!(e1, "displacement", u)
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update!(e1, "youngs modulus", 96.0)
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update!(e1, "poissons ratio", 1/3)
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p1 = Problem(Elasticity, "tetra", 3)
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p1.properties.formulation = :continuum_buckling
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push!(p1, e1)
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assemble!(p1, 0.0)
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free_dofs = [10, 11, 12]
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Km = sparse(p1.assembly.K)[free_dofs, free_dofs]
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Kg = sparse(p1.assembly.Kg)[free_dofs, free_dofs]
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dump(full(Km))
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dump(full(Kg))
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la = sort(eigs(Km, -Kg)[1])
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la_expected = [1.0, 4.0]
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@info("la = $la")
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@info("la_expected = $(la_expected)")
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@test isapprox(la, la_expected)
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end
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=#
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