mirror of
https://github.com/JuliaFEM/JuliaFEM.jl.git
synced 2026-08-29 15:42:55 +00:00
Jukka Aho
74 lines
2.6 KiB
Julia
74 lines
2.6 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.Test
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#=
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function test_interpolate()
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el = get_element()
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@test isapprox(el("geometry", [0.0, 0.0]), [0.5, 0.5])
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@test isapprox(el("geometry", [0.0, 0.0], 0.0), [0.5, 0.5])
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@test isapprox(el([0.0, 0.0]), [0.25 0.25 0.25 0.25])
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@test isapprox(el([0.0, 0.0], Val{:grad}), [-0.5 0.5 0.5 -0.5; -0.5 -0.5 0.5 0.5])
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gradT = el("temperature", [0.0, 0.0], 1.0, Val{:grad})
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info("gradT = $gradT")
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X = [0.5, 0.5]
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gradT_expected = [1-2*X[2] 3-2*X[1]]
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info("gradT(expected) = $gradT_expected")
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@test isapprox(gradT, gradT_expected)
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# @test isapprox(el("temperature", [0.0, 0.0], 0.5), 1/2*gradT_expected)
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# gradT = el("temperature", [0.0, 0.0], 0.5, Val{:grad})
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# info("gradT = $gradT")
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# @test isapprox(gradT, 1/2*gradT_expected)
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end
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function test_calculate_normal_tangential_coordinates()
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el = Tri3([1, 2, 3])
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el["geometry"] = Vector{Float64}[
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[0.0, 0.0, 0.0],
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[1.0, 0.0, 0.0],
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[0.0, 1.0, 0.0]]
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calculate_normal_tangential_coordinates!(el, 0.0)
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n = [0.0 0.0 1.0]'
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t1 = [1.0 0.0 0.0]'
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t2 = [0.0 1.0 0.0]'
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R = [n t1 t2]
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@test isapprox(el("normal-tangential coordinates", [0.0, 0.0], 0.0), R)
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end
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function test_manifold_determinant()
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el = Quad4([1, 2, 3, 4])
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#el["geometry"] = Vector{Float64}[[0.0, 0.0], [1.0, 0.0], [1.0, 1.0], [0.0, 1.0]]
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el["geometry"] = Vector{Float64}[[0.0, 0.0, 1.0], [1.0, 0.0, 1.0], [1.0, 1.0, 1.0], [0.0, 1.0, 1.0]]
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# mother element area = 2*2 = 4, this element is 1, determinant should be 1/4 everywhere
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d = det(el, [0.1, 0.2], 0.0)
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d_expected = 0.25
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@test d == d_expected
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end
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@testset "add new discrete constant time-variant field and interpolate it" begin
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element = Element(Quad4, [1, 2, 3, 4])
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element["my field"] = (0.0 => 0.0, 1.0 => 1.0)
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@test isapprox(element("my field", [0.0, 0.0], 0.5), 0.5)
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update!(element, "my field 2", 0.0 => 0.0, 1.0 => 1.0)
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@test isapprox(element("my field 2", [0.0, 0.0], 0.5), 0.5)
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end
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=#
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@testset "test add time dependent field to element" begin
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el = Element(Seg2, [1, 2])
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u1 = Vector{Float64}[[0.0, 0.0], [0.0, 0.0]]
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u2 = Vector{Float64}[[1.0, 1.0], [1.0, 1.0]]
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update!(el, "displacement", 0.0 => u1)
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update!(el, "displacement", 1.0 => u2)
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@test length(el["displacement"]) == 2
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@test isapprox(el("displacement", [0.0], 0.0), [0.0, 0.0])
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@test isapprox(el("displacement", [0.0], 0.5), [0.5, 0.5])
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@test isapprox(el("displacement", [0.0], 1.0), [1.0, 1.0])
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end
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