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# This file is a part of JuliaFEM. | ||
# License is MIT: see https://github.com/JuliaFEM/FEMTruss.jl/blob/master/LICENSE | ||
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using FEMBase | ||
using FEMTruss | ||
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using Base.Test | ||
# thsi is the same for all tests testing K and orientation | ||
function make_test_problem(coords::Vector{Tuple{Int64, Vector{Float64}}}, dim::Int64, t::Float64=0.0) | ||
elem_id = map(x->x[1], coords) | ||
coord_dict=Dict(coords) | ||
elem1 = Element(Seg2, elem_id) # connects to nodes 1, 2 | ||
elem1.id = 1 | ||
update!(elem1, "geometry", coord_dict) | ||
update!(elem1, "youngs modulus", 288.0) | ||
update!(elem1, "cross section area", 0.1) | ||
p1 = Problem(Truss, "my truss problem", dim) # 1 dofs/node for now; | ||
empty!(p1.assembly) | ||
assemble!(p1.assembly, p1, elem1, t) | ||
return p1 | ||
end | ||
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@testset "FEMTrussElements.jl" begin | ||
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zeros_2d = zeros(1,2) | ||
zeros_3d = zeros(1,3) | ||
K_oracle_base = [2.88 -2.88;-2.88 2.88] | ||
#truss test | ||
X = [(1 , [0.0]),(2, [10.0])] | ||
ndofs = length(X[1][2]) | ||
p1 = make_test_problem(X, ndofs) | ||
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@test get_unknown_field_name(p1)=="displacement" | ||
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#This one fails | ||
#Test threw an exception of type UndefVarError | ||
# Expression: get_formulation_type(p1) | ||
# UndefVarError: get_formulation_type not defined | ||
#@test get_formulation_type(p1) | ||
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K_truss = full(p1.assembly.K) | ||
K_oracle = K_oracle_base | ||
@test isapprox(K_truss, K_oracle) | ||
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# now for the 2d x case | ||
X = [(1 , [0.0,0.0]),(2, [10.0,0.0])] | ||
ndofs = length(X[1][2]) | ||
p1 = make_test_problem(X, ndofs) | ||
K_truss = full(p1.assembly.K) | ||
trans_2d = [1 0] | ||
trans = [trans_2d zeros_2d;zeros_2d trans_2d] | ||
K_oracle = trans'*K_oracle_base*trans | ||
@test isapprox(K_truss, K_oracle) | ||
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# lets do y as well | ||
X = [(1 , [0.0,0.0]),(2, [0.0,10.0])] | ||
ndofs = length(X[1][2]) | ||
p1 = make_test_problem(X, ndofs) | ||
K_truss = full(p1.assembly.K) | ||
trans_2d = [0 1] | ||
trans = [trans_2d zeros_2d;zeros_2d trans_2d] | ||
K_oracle = trans'*K_oracle_base*trans | ||
@test isapprox(K_truss, K_oracle) | ||
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# now for the 2d x case reverted | ||
X = [(2 , [0.0,0.0]),(1, [10.0,0.0])] | ||
ndofs = length(X[1][2]) | ||
p1 = make_test_problem(X, ndofs) | ||
K_truss = full(p1.assembly.K) | ||
trans_2d = [-1 0] | ||
trans = [trans_2d zeros_2d;zeros_2d trans_2d] | ||
K_oracle = trans'*K_oracle_base*trans | ||
@test isapprox(K_truss, K_oracle) | ||
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# lets do y as well reverted | ||
X = [(2 , [0.0,0.0]),(1, [0.0,10.0])] | ||
ndofs = length(X[1][2]) | ||
p1 = make_test_problem(X, ndofs) | ||
K_truss = full(p1.assembly.K) | ||
trans_2d = [0 -1] | ||
trans = [trans_2d zeros_2d;zeros_2d trans_2d] | ||
K_oracle = trans'*K_oracle_base*trans | ||
@test isapprox(K_truss, K_oracle) | ||
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# now for the 3d case | ||
X = [(1 , [0.0,0.0,0.0]),(2, [10.0,0.0,0.0])] | ||
ndofs = length(X[1][2]) | ||
p1 = make_test_problem(X, ndofs) | ||
K_truss = full(p1.assembly.K) | ||
trans_3d = [1 0 0] | ||
trans = [trans_3d zeros_3d;zeros_3d trans_3d] | ||
K_oracle = trans'*K_oracle_base*trans | ||
@test isapprox(K_truss, K_oracle) | ||
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end |