mirror of
https://github.com/JuliaFEM/JuliaFEM.jl.git
synced 2026-09-17 01:02:13 +00:00
Jukka Aho
54 lines
1.4 KiB
Julia
54 lines
1.4 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
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using JuliaFEM.Preprocess
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using JuliaFEM.Testing
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@testset "test postprocessing of strain and stress" begin
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X = Dict(
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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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u = Dict(
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1 => [0.0, 0.0, 0.0],
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2 => [-1/3, 0.0, 0.0],
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3 => [-1/3, -1/3, 0.0],
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4 => [0.0, -1/3, 0.0],
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5 => [0.0, 0.0, 1.0],
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6 => [-1/3, 0.0, 1.0],
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7 => [-1/3, -1/3, 1.0],
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8 => [0.0, -1/3, 1.0])
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element = Element(Hex8, [1, 2, 3, 4, 5, 6, 7, 8])
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update!(element, "geometry", 0.0 => X)
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update!(element, "displacement", 0.0 => u)
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update!(element, "youngs modulus", 288.0)
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update!(element, "poissons ratio", 1/3)
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body = Problem(Elasticity, "[0,1]³ elastic unit block", 3)
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body.elements= [element]
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postprocess!(body, 0.0, Val{:strain})
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postprocess!(body, 0.0, Val{:stress})
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geom = element("geometry", 0.0)
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strain = element("strain", 0.0)
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stress = element("stress", 0.0)
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for i in 1:length(geom)
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a = geom[i]
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b = strain[i]
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c = stress[i]
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@test isapprox(b, [-1/3, -1/3, 1.0, 0.0, 0.0, 0.0])
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@test isapprox(c, [0.0, 0.0, 288.0, 0.0, 0.0, 0.0])
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end
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end
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