mirror of
https://github.com/JuliaFEM/JuliaFEM.jl.git
synced 2026-08-06 04:21:33 +00:00
Jukka Aho
dce7472cda
`Analysis` is basically doing same than `Solver` before, but has a slighly simpler structure and is more general.
462 lines
20 KiB
Julia
462 lines
20 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.Postprocess
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using JuliaFEM.Testing
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### temperature patch tests, sl tet4, dl tet4, sl tet10, dl tet 10
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tet4_meshfile = "test_problems_mortar_3d/tet4.inp"
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tet10_meshfile = "test_problems_mortar_3d/tet10.inp"
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@testset "patch test temperature + abaqus inp + tet4" begin
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mesh = abaqus_read_mesh(tet4_meshfile)
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upper = Problem(Heat, "UPPER", 1)
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upper.elements = create_elements(mesh, "UPPER")
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update!(upper, "temperature thermal conductivity", 1.0)
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lower = Problem(Heat, "LOWER", 1)
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lower.elements = create_elements(mesh, "LOWER")
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update!(lower, "temperature thermal conductivity", 1.0)
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bc_upper = Problem(Dirichlet, "UPPER_TOP", 1, "temperature")
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bc_upper.elements = create_surface_elements(mesh, "UPPER_TOP")
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update!(bc_upper, "temperature 1", 0.0)
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bc_lower = Problem(Dirichlet, "LOWER_BOTTOM", 1, "temperature")
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bc_lower.elements = create_surface_elements(mesh, "LOWER_BOTTOM")
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update!(bc_lower, "temperature 1", 1.0)
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interface = Problem(Mortar, "interface between upper and lower block", 1, "temperature")
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interface_slave_elements = create_surface_elements(mesh, "LOWER_TO_UPPER")
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interface_master_elements = create_surface_elements(mesh, "UPPER_TO_LOWER")
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update!(interface_slave_elements, "master elements", interface_master_elements)
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interface.elements = [interface_master_elements; interface_slave_elements]
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JuliaFEM.diagnose_interface(interface, 0.0)
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solver = LinearSolver(upper, lower, bc_upper, bc_lower, interface)
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add_results_writer!(solver, Xdmf("sl_lin_temp_results"; overwrite=true))
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solver()
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node_ids, temperature = get_nodal_vector(interface.elements, "temperature", 0.0)
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T = [t[1] for t in temperature]
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minT = minimum(T)
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maxT = maximum(T)
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info("minT = $minT, maxT = $maxT")
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@test isapprox(minT, 0.5)
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@test isapprox(maxT, 0.5)
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#=
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initialize!(solver)
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assemble!(solver)
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M, K, Kg, f, fg = get_field_assembly(solver)
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Kb, C1, C2, D, fb, g = get_boundary_assembly(solver)
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K = K + Kg + Kb
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f = f + fg + fb
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K = 1/2*(K + K')
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M = 1/2*(M + M')
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=#
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end
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@testset "patch test temperature + abaqus inp + tet4 + dual basis + adjust" begin
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mesh = abaqus_read_mesh(tet4_meshfile)
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upper = Problem(Heat, "UPPER", 1)
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upper.elements = create_elements(mesh, "UPPER")
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update!(upper, "temperature thermal conductivity", 1.0)
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lower = Problem(Heat, "LOWER", 1)
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lower.elements = create_elements(mesh, "LOWER")
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update!(lower, "temperature thermal conductivity", 1.0)
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bc_upper = Problem(Dirichlet, "UPPER_TOP", 1, "temperature")
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bc_upper.elements = create_surface_elements(mesh, "UPPER_TOP")
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update!(bc_upper, "temperature 1", 0.0)
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bc_lower = Problem(Dirichlet, "LOWER_BOTTOM", 1, "temperature")
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bc_lower.elements = create_surface_elements(mesh, "LOWER_BOTTOM")
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update!(bc_lower, "temperature 1", 1.0)
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interface = Problem(Mortar, "interface between upper and lower block", 1, "temperature")
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interface_slave_elements = create_surface_elements(mesh, "LOWER_TO_UPPER")
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interface_master_elements = create_surface_elements(mesh, "UPPER_TO_LOWER")
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update!(interface_slave_elements, "master elements", interface_master_elements)
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interface.elements = [interface_master_elements; interface_slave_elements]
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interface.properties.dual_basis = true
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#interface.properties.adjust = true
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JuliaFEM.diagnose_interface(interface, 0.0)
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solver = LinearSolver(upper, lower, bc_upper, bc_lower, interface)
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add_results_writer!(solver, Xdmf("dl_lin_temp_results"; overwrite=true))
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solver()
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node_ids, temperature = get_nodal_vector(interface.elements, "temperature", 0.0)
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T = [t[1] for t in temperature]
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minT = minimum(T)
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maxT = maximum(T)
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info("minT = $minT, maxT = $maxT")
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@test isapprox(minT, 0.5)
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@test isapprox(maxT, 0.5)
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end
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@testset "patch test temperature + abaqus inp + tet10, quadratic surface elements" begin
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mesh = abaqus_read_mesh(tet10_meshfile)
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upper = Problem(Heat, "UPPER", 1)
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upper.elements = create_elements(mesh, "UPPER")
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update!(upper, "temperature thermal conductivity", 1.0)
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lower = Problem(Heat, "LOWER", 1)
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lower.elements = create_elements(mesh, "LOWER")
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update!(lower, "temperature thermal conductivity", 1.0)
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bc_upper = Problem(Dirichlet, "UPPER_TOP", 1, "temperature")
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bc_upper.elements = create_surface_elements(mesh, "UPPER_TOP")
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update!(bc_upper, "temperature 1", 0.0)
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bc_lower = Problem(Dirichlet, "LOWER_BOTTOM", 1, "temperature")
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bc_lower.elements = create_surface_elements(mesh, "LOWER_BOTTOM")
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update!(bc_lower, "temperature 1", 1.0)
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interface = Problem(Mortar, "interface between upper and lower block", 1, "temperature")
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interface_slave_elements = create_surface_elements(mesh, "LOWER_TO_UPPER")
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interface_master_elements = create_surface_elements(mesh, "UPPER_TO_LOWER")
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update!(interface_slave_elements, "master elements", interface_master_elements)
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interface.elements = [interface_master_elements; interface_slave_elements]
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interface.properties.linear_surface_elements = false
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interface.properties.split_quadratic_slave_elements = false
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interface.properties.split_quadratic_master_elements = false
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interface.properties.alpha = 0.0
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# JuliaFEM.diagnose_interface(interface, 0.0)
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solver = LinearSolver(upper, lower, bc_upper, bc_lower, interface)
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add_results_writer!(solver, Xdmf("sl_quad_temp_results"; overwrite=true))
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solver()
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node_ids, temperature = get_nodal_vector(interface.elements, "temperature", 0.0)
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T = [t[1] for t in temperature]
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minT = minimum(T)
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maxT = maximum(T)
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stdT = std(T)
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info("minT = $minT, maxT = $maxT, stdT = $stdT")
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@test maxT - minT < 1.0e-6
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@test isapprox(stdT, 0.0; atol=1.0e-6)
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end
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@testset "patch test temperature + abaqus inp + tet10 + quadratic surface elements + dual basis + alpha=0.2" begin
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mesh = abaqus_read_mesh(tet10_meshfile)
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upper = Problem(Heat, "UPPER", 1)
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upper.elements = create_elements(mesh, "UPPER")
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update!(upper, "temperature thermal conductivity", 1.0)
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lower = Problem(Heat, "LOWER", 1)
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lower.elements = create_elements(mesh, "LOWER")
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update!(lower, "temperature thermal conductivity", 1.0)
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bc_upper = Problem(Dirichlet, "UPPER_TOP", 1, "temperature")
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bc_upper.elements = create_surface_elements(mesh, "UPPER_TOP")
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update!(bc_upper, "temperature 1", 0.0)
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bc_lower = Problem(Dirichlet, "LOWER_BOTTOM", 1, "temperature")
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bc_lower.elements = create_surface_elements(mesh, "LOWER_BOTTOM")
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update!(bc_lower, "temperature 1", 1.0)
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interface = Problem(Mortar, "interface between upper and lower block", 1, "temperature")
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interface_slave_elements = create_surface_elements(mesh, "LOWER_TO_UPPER")
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interface_master_elements = create_surface_elements(mesh, "UPPER_TO_LOWER")
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update!(interface_slave_elements, "master elements", interface_master_elements)
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interface.elements = [interface_master_elements; interface_slave_elements]
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interface.properties.linear_surface_elements = false
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interface.properties.split_quadratic_slave_elements = false
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interface.properties.split_quadratic_master_elements = false
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interface.properties.dual_basis = true
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interface.properties.alpha = 0.2
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solver = LinearSolver(upper, lower, bc_upper, bc_lower, interface)
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add_results_writer!(solver, Xdmf("dl_quad_temp_results"; overwrite=true))
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solver()
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node_ids, temperature = get_nodal_vector(interface.elements, "temperature", 0.0)
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#node_ids, temperature = get_nodal_vector(interface_slave_elements, "temperature", 0.0)
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#=
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for (j, (nid, T)) in enumerate(zip(node_ids, temperature))
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info("$j: $nid -> $(T[1])")
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j == 10 && break
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end
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=#
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T = [t[1] for t in temperature]
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minT = minimum(T)
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maxT = maximum(T)
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stdT = std(T)
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info("minT = $minT, maxT = $maxT, stdT = $stdT")
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@test maxT - minT < 1.0e-10
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@test isapprox(stdT, 0.0; atol=1.0e-10)
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end
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### displacement patch tests, sl tet4, dl tet4, sl tet10, dl tet 10
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@testset "patch test displacement + abaqus inp + tet4 + adjust" begin
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mesh = abaqus_read_mesh(tet4_meshfile)
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# modify mesh a bit, find all nodes in elements in element set UPPER and put 0.2 to X3 to test adjust
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JuliaFEM.Preprocess.create_node_set_from_element_set!(mesh, :UPPER)
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for nid in mesh.node_sets[:UPPER]
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mesh.nodes[nid][3] += 0.2
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end
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upper = Problem(Elasticity, "UPPER", 3)
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upper.elements = create_elements(mesh, "UPPER")
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update!(upper, "youngs modulus", 288.0)
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update!(upper, "poissons ratio", 1/3)
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lower = Problem(Elasticity, "LOWER", 3)
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lower.elements = create_elements(mesh, "LOWER")
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update!(lower, "youngs modulus", 288.0)
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update!(lower, "poissons ratio", 1/3)
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bc_upper = Problem(Dirichlet, "UPPER_TOP", 3, "displacement")
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bc_upper.elements = create_surface_elements(mesh, "UPPER_TOP")
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update!(bc_upper, "displacement 3", 0.0)
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bc_lower = Problem(Dirichlet, "LOWER_BOTTOM", 3, "displacement")
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bc_lower.elements = create_surface_elements(mesh, "LOWER_BOTTOM")
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update!(bc_lower, "displacement 3", 0.0)
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bc_sym13 = Problem(Dirichlet, "SYM13", 3, "displacement")
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bc_sym13.elements = [create_surface_elements(mesh, "LOWER_SYM13"); create_surface_elements(mesh, "UPPER_SYM13")]
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update!(bc_sym13, "displacement 2", 0.0)
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bc_sym23 = Problem(Dirichlet, "SYM23", 3, "displacement")
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bc_sym23.elements = [create_surface_elements(mesh, "LOWER_SYM23"); create_surface_elements(mesh, "UPPER_SYM23")]
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update!(bc_sym23, "displacement 1", 0.0)
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interface = Problem(Mortar, "LOWER_TO_UPPER", 3, "displacement")
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interface_slave_elements = create_surface_elements(mesh, "LOWER_TO_UPPER")
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interface_master_elements = create_surface_elements(mesh, "UPPER_TO_LOWER")
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update!(interface_slave_elements, "master elements", interface_master_elements)
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interface.elements = [interface_slave_elements; interface_master_elements]
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append!(interface.assembly.removed_dofs, [1316, 1319, 1358, 1387, 1388, 1492, 1597, 1627])
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interface.properties.linear_surface_elements = false
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interface.properties.split_quadratic_slave_elements = false
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interface.properties.split_quadratic_master_elements = false
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interface.properties.adjust = true
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interface.properties.dual_basis = false
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solver = LinearSolver(upper, lower, bc_upper, bc_lower, bc_sym13, bc_sym23, interface)
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add_results_writer!(solver, Xdmf("sl_lin_disp_results"; overwrite=true))
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solver()
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node_ids, displacement = get_nodal_vector(interface.elements, "displacement", 0.0)
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node_ids, geometry = get_nodal_vector(interface.elements, "geometry", 0.0)
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u3 = [u[3] for u in displacement]
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maxabsu3 = maximum(abs.(u3))
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stdabsu3 = std(abs.(u3))
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info("tet10 block: max(abs(u3)) = $maxabsu3, std(abs(u3)) = $stdabsu3")
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@test isapprox(stdabsu3, 0.0; atol=1.0e-10)
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end
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@testset "patch test displacement + abaqus inp + tet4 + adjust + dual basis" begin
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mesh = abaqus_read_mesh(tet4_meshfile)
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# modify mesh a bit, find all nodes in elements in element set UPPER and put 0.2 to X3 to test adjust
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JuliaFEM.Preprocess.create_node_set_from_element_set!(mesh, :UPPER)
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for nid in mesh.node_sets[:UPPER]
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mesh.nodes[nid][3] += 0.2
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end
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upper = Problem(Elasticity, "UPPER", 3)
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upper.elements = create_elements(mesh, "UPPER")
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update!(upper, "youngs modulus", 288.0)
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update!(upper, "poissons ratio", 1/3)
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lower = Problem(Elasticity, "LOWER", 3)
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lower.elements = create_elements(mesh, "LOWER")
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update!(lower, "youngs modulus", 288.0)
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update!(lower, "poissons ratio", 1/3)
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bc_upper = Problem(Dirichlet, "UPPER_TOP", 3, "displacement")
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bc_upper.elements = create_surface_elements(mesh, "UPPER_TOP")
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update!(bc_upper, "displacement 3", 0.0)
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bc_lower = Problem(Dirichlet, "LOWER_BOTTOM", 3, "displacement")
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bc_lower.elements = create_surface_elements(mesh, "LOWER_BOTTOM")
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update!(bc_lower, "displacement 3", 0.0)
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bc_sym13 = Problem(Dirichlet, "SYM13", 3, "displacement")
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bc_sym13.elements = [create_surface_elements(mesh, "LOWER_SYM13"); create_surface_elements(mesh, "UPPER_SYM13")]
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update!(bc_sym13, "displacement 2", 0.0)
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bc_sym23 = Problem(Dirichlet, "SYM23", 3, "displacement")
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bc_sym23.elements = [create_surface_elements(mesh, "LOWER_SYM23"); create_surface_elements(mesh, "UPPER_SYM23")]
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update!(bc_sym23, "displacement 1", 0.0)
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interface = Problem(Mortar, "LOWER_TO_UPPER", 3, "displacement")
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interface_slave_elements = create_surface_elements(mesh, "LOWER_TO_UPPER")
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interface_master_elements = create_surface_elements(mesh, "UPPER_TO_LOWER")
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update!(interface_slave_elements, "master elements", interface_master_elements)
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interface.elements = [interface_slave_elements; interface_master_elements]
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append!(interface.assembly.removed_dofs, [1316, 1319, 1358, 1387, 1388, 1492, 1597, 1627])
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interface.properties.linear_surface_elements = false
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interface.properties.split_quadratic_slave_elements = false
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interface.properties.split_quadratic_master_elements = false
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interface.properties.adjust = true
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interface.properties.dual_basis = true
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solver = LinearSolver(upper, lower, bc_upper, bc_lower, bc_sym13, bc_sym23, interface)
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add_results_writer!(solver, Xdmf("dl_lin_disp_results"; overwrite=true))
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solver()
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node_ids, displacement = get_nodal_vector(interface.elements, "displacement", 0.0)
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node_ids, geometry = get_nodal_vector(interface.elements, "geometry", 0.0)
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u3 = [u[3] for u in displacement]
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maxabsu3 = maximum(abs.(u3))
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stdabsu3 = std(abs.(u3))
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info("tet10 block: max(abs(u3)) = $maxabsu3, std(abs(u3)) = $stdabsu3")
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@test isapprox(stdabsu3, 0.0; atol=1.0e-10)
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end
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@testset "patch test displacement + abaqus inp + tet10 + adjust" begin
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mesh = abaqus_read_mesh(tet10_meshfile)
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# modify mesh a bit, find all nodes in elements in element set UPPER and put 0.2 to X3 to test adjust
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JuliaFEM.Preprocess.create_node_set_from_element_set!(mesh, :UPPER)
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for nid in mesh.node_sets[:UPPER]
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mesh.nodes[nid][3] += 0.2
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end
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upper = Problem(Elasticity, "UPPER", 3)
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upper.elements = create_elements(mesh, "UPPER")
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update!(upper, "youngs modulus", 288.0)
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update!(upper, "poissons ratio", 1/3)
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lower = Problem(Elasticity, "LOWER", 3)
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lower.elements = create_elements(mesh, "LOWER")
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update!(lower, "youngs modulus", 288.0)
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update!(lower, "poissons ratio", 1/3)
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bc_upper = Problem(Dirichlet, "UPPER_TOP", 3, "displacement")
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bc_upper.elements = create_surface_elements(mesh, "UPPER_TOP")
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update!(bc_upper, "displacement 3", 0.0)
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bc_lower = Problem(Dirichlet, "LOWER_BOTTOM", 3, "displacement")
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bc_lower.elements = create_surface_elements(mesh, "LOWER_BOTTOM")
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update!(bc_lower, "displacement 3", 0.0)
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bc_sym13 = Problem(Dirichlet, "SYM13", 3, "displacement")
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bc_sym13.elements = [create_surface_elements(mesh, "LOWER_SYM13"); create_surface_elements(mesh, "UPPER_SYM13")]
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update!(bc_sym13, "displacement 2", 0.0)
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bc_sym23 = Problem(Dirichlet, "SYM23", 3, "displacement")
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bc_sym23.elements = [create_surface_elements(mesh, "LOWER_SYM23"); create_surface_elements(mesh, "UPPER_SYM23")]
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update!(bc_sym23, "displacement 1", 0.0)
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interface = Problem(Mortar, "LOWER_TO_UPPER", 3, "displacement")
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interface_slave_elements = create_surface_elements(mesh, "LOWER_TO_UPPER")
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interface_master_elements = create_surface_elements(mesh, "UPPER_TO_LOWER")
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update!(interface_slave_elements, "master elements", interface_master_elements)
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interface.elements = [interface_slave_elements; interface_master_elements]
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removed_dofs = [1316, 1319, 1325, 1358, 1361, 1387, 1388, 1391, 1492, 1597, 1600, 1627, 1630, 1657]
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append!(interface.assembly.removed_dofs, removed_dofs)
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interface.properties.linear_surface_elements = false
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interface.properties.split_quadratic_slave_elements = false
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interface.properties.split_quadratic_master_elements = false
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interface.properties.adjust = true
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interface.properties.dual_basis = false
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solver = LinearSolver(upper, lower, bc_upper, bc_lower, bc_sym13, bc_sym23, interface)
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add_results_writer!(solver, Xdmf("sl_quad_disp_results"; overwrite=true))
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solver()
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node_ids, displacement = get_nodal_vector(interface.elements, "displacement", 0.0)
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node_ids, geometry = get_nodal_vector(interface.elements, "geometry", 0.0)
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u3 = [u[3] for u in displacement]
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maxabsu3 = maximum(abs.(u3))
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stdabsu3 = std(abs.(u3))
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info("tet10 block: max(abs(u3)) = $maxabsu3, std(abs(u3)) = $stdabsu3")
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@test isapprox(stdabsu3, 0.0; atol=1.0e-6)
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end
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@testset "patch test displacement + abaqus inp + tet10 + adjust + dual basis + alpha=0.2" begin
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mesh = abaqus_read_mesh(tet10_meshfile)
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# modify mesh a bit, find all nodes in elements in element set UPPER and put 0.2 to X3 to test adjust
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JuliaFEM.Preprocess.create_node_set_from_element_set!(mesh, :UPPER)
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for nid in mesh.node_sets[:UPPER]
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mesh.nodes[nid][3] += 0.2
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end
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upper = Problem(Elasticity, "UPPER", 3)
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upper.elements = create_elements(mesh, "UPPER")
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update!(upper, "youngs modulus", 288.0)
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update!(upper, "poissons ratio", 1/3)
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lower = Problem(Elasticity, "LOWER", 3)
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lower.elements = create_elements(mesh, "LOWER")
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update!(lower, "youngs modulus", 288.0)
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update!(lower, "poissons ratio", 1/3)
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|
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bc_upper = Problem(Dirichlet, "UPPER_TOP", 3, "displacement")
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bc_upper.elements = create_surface_elements(mesh, "UPPER_TOP")
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update!(bc_upper, "displacement 3", 0.0)
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|
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bc_lower = Problem(Dirichlet, "LOWER_BOTTOM", 3, "displacement")
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bc_lower.elements = create_surface_elements(mesh, "LOWER_BOTTOM")
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update!(bc_lower, "displacement 3", 0.0)
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|
|
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bc_sym13 = Problem(Dirichlet, "SYM13", 3, "displacement")
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bc_sym13.elements = [create_surface_elements(mesh, "LOWER_SYM13"); create_surface_elements(mesh, "UPPER_SYM13")]
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|
update!(bc_sym13, "displacement 2", 0.0)
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|
|
|
bc_sym23 = Problem(Dirichlet, "SYM23", 3, "displacement")
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|
bc_sym23.elements = [create_surface_elements(mesh, "LOWER_SYM23"); create_surface_elements(mesh, "UPPER_SYM23")]
|
|
update!(bc_sym23, "displacement 1", 0.0)
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|
|
|
interface = Problem(Mortar, "LOWER_TO_UPPER", 3, "displacement")
|
|
interface_slave_elements = create_surface_elements(mesh, "LOWER_TO_UPPER")
|
|
interface_master_elements = create_surface_elements(mesh, "UPPER_TO_LOWER")
|
|
update!(interface_slave_elements, "master elements", interface_master_elements)
|
|
interface.elements = [interface_slave_elements; interface_master_elements]
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|
|
|
removed_dofs = [1316, 1319, 1325, 1358, 1361, 1387, 1388, 1391, 1492, 1597, 1600, 1627, 1630, 1657]
|
|
append!(interface.assembly.removed_dofs, removed_dofs)
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|
|
|
interface.properties.linear_surface_elements = false
|
|
interface.properties.split_quadratic_slave_elements = false
|
|
interface.properties.split_quadratic_master_elements = false
|
|
interface.properties.adjust = true
|
|
interface.properties.dual_basis = true
|
|
interface.properties.alpha = 0.2
|
|
|
|
solver = LinearSolver(upper, lower, bc_upper, bc_lower, bc_sym13, bc_sym23, interface)
|
|
add_results_writer!(solver, Xdmf("dl_quad_disp_results"; overwrite=true))
|
|
solver()
|
|
|
|
node_ids, displacement = get_nodal_vector(interface.elements, "displacement", 0.0)
|
|
node_ids, geometry = get_nodal_vector(interface.elements, "geometry", 0.0)
|
|
u3 = [u[3] for u in displacement]
|
|
maxabsu3 = maximum(abs.(u3))
|
|
stdabsu3 = std(abs.(u3))
|
|
info("tet10 block: max(abs(u3)) = $maxabsu3, std(abs(u3)) = $stdabsu3")
|
|
@test isapprox(stdabsu3, 0.0; atol=1.0e-6)
|
|
end
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|
|