FEM Element Types: Difference between revisions
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== |
== Quadrangle element == <!--T:4--> |
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| F4 || N3 || N10 || N4 || N8 || N1 || N7 || N3 |
| F4 || N3 || N10 || N4 || N8 || N1 || N7 || N3 |
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== Pyramid element == <!--T:6--> |
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[[Image:pyramides.gif]] |
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<translate> |
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<!--T:30--> |
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{| class="wikitable" style="color:black; background-color:#eeeeef;" cellpadding="5" cellspacing="0" border="1" |
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|+ Edges of Pyra5 and Pyra13 |
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! Edge !! Node 1 !! Node 2 !! Middle node |
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| E1 || N1 || N2 || N6 |
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| E2 || N2 || N3 || N7 |
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| E3 || N3 || N4 || N8 |
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| E4 || N4 || N1 || N9 |
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| E5 || N1 || N5 || N10 |
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| E6 || N2 || N5 || N11 |
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| E7 || N3 || N5 || N12 |
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| E8 || N4 || N5 || N13 |
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<!--T:31--> |
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{| class="wikitable" style="color:black; background-color:#eeeeef;" cellpadding="5" cellspacing="0" border="1" |
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|+ Faces by Edges of Pyra5 and Pyra13 |
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! Face !! Edge 1 !! Edge 2 !! Edge 3 !! Edge 4 |
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| F1 || E1 || E2 || E3 || E4 |
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| F2 || E5 || -E6 || -E1 || _ |
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| F3 || E6 || -E7 || -E2 || _ |
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| F4 || E7 || -E8 || -E3 || _ |
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| F5 || E8 || E5 || -E4 || _ |
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<!--T:32--> |
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{| class="wikitable" style="color:black; background-color:#eeeeef;" cellpadding="5" cellspacing="0" border="1" |
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|+ Faces by Nodes of Pyra5 |
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|- |
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! Face !! Node 1 !! Node 2 !! Node 3 !! Node4 !! Node1 |
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| F1 || N1 || N2 || N3 || N4 || N1 |
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| F2 || N1 || N5 || N2 || _ || N1 |
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| F3 || N2 || N5 || N3 || _ || N2 |
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| F4 || N3 || N5 || N4 || _ || N3 |
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| F5 || N4 || N5 || N1 || _ || N4 |
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<!--T:33--> |
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{| class="wikitable" style="color:black; background-color:#eeeeef;" cellpadding="5" cellspacing="0" border="1" |
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|+ Faces by Nodes of Pyra13 |
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|- |
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! Face !! Node 1 !! Node 2 !! Node 3 !! Node4 !! Node 5 !! Node 6 !! Node 7 !! Node8 !! Node1 |
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| F1 || N1 || N6 || N2 || N7 || N3 || N8 || N4 || N9 || N1 |
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| F2 || N1 || N10 || N5 || N11 || N2 || N6 || _ || _ || N1 |
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| F3 || N2 || N11 || N5 || N12 || N13 || N7 || _ || _ || N2 |
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| F4 || N3 || N12 || N5 || N13 || N4 || N8 || _ || _ || N3 |
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| F5 || N4 || N13 || N5 || N10 || N1 || N9 || _ || _ || N4 |
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[[Image: |
[[Image:FEM_mesh_elements_5_hexahedron.svg|600px]] |
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<translate> |
<translate> |
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== Pentahedron element == <!--T:8--> |
== Pentahedron element (prism) == <!--T:8--> |
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</translate> |
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[[Image: |
[[Image:FEM_mesh_elements_6_pentahedron.svg|600px]] |
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<translate> |
<translate> |
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| F5 || N3 || N15 || N6 || N12 || N4 || N13 || N1 || N9 || N3 |
| F5 || N3 || N15 || N6 || N12 || N4 || N13 || N1 || N9 || N3 |
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== Pyramid element == <!--T:6--> |
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</translate> |
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[[Image:FEM_mesh_elements_7_pyramid.svg|600px]] |
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<translate> |
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<!--T:30--> |
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{| class="wikitable" style="color:black; background-color:#eeeeef;" cellpadding="5" cellspacing="0" border="1" |
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|+ Edges of Pyra5 and Pyra13 |
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|- |
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! Edge !! Node 1 !! Node 2 !! Middle node |
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|- |
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| E1 || N1 || N2 || N6 |
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|- |
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| E2 || N2 || N3 || N7 |
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| E3 || N3 || N4 || N8 |
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| E4 || N4 || N1 || N9 |
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| E5 || N1 || N5 || N10 |
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| E6 || N2 || N5 || N11 |
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| E7 || N3 || N5 || N12 |
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| E8 || N4 || N5 || N13 |
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|} |
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<!--T:31--> |
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{| class="wikitable" style="color:black; background-color:#eeeeef;" cellpadding="5" cellspacing="0" border="1" |
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|+ Faces by Edges of Pyra5 and Pyra13 |
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|- |
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! Face !! Edge 1 !! Edge 2 !! Edge 3 !! Edge 4 |
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|- |
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| F1 || E1 || E2 || E3 || E4 |
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|- |
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| F2 || E5 || -E6 || -E1 || _ |
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| F3 || E6 || -E7 || -E2 || _ |
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| F4 || E7 || -E8 || -E3 || _ |
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| F5 || E8 || E5 || -E4 || _ |
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|} |
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<!--T:32--> |
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{| class="wikitable" style="color:black; background-color:#eeeeef;" cellpadding="5" cellspacing="0" border="1" |
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|+ Faces by Nodes of Pyra5 |
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|- |
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! Face !! Node 1 !! Node 2 !! Node 3 !! Node4 !! Node1 |
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|- |
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| F1 || N1 || N2 || N3 || N4 || N1 |
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| F2 || N1 || N5 || N2 || _ || N1 |
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| F3 || N2 || N5 || N3 || _ || N2 |
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| F4 || N3 || N5 || N4 || _ || N3 |
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| F5 || N4 || N5 || N1 || _ || N4 |
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|} |
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<!--T:33--> |
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{| class="wikitable" style="color:black; background-color:#eeeeef;" cellpadding="5" cellspacing="0" border="1" |
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|+ Faces by Nodes of Pyra13 |
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|- |
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! Face !! Node 1 !! Node 2 !! Node 3 !! Node4 !! Node 5 !! Node 6 !! Node 7 !! Node8 !! Node1 |
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|- |
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| F1 || N1 || N6 || N2 || N7 || N3 || N8 || N4 || N9 || N1 |
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|- |
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| F2 || N1 || N10 || N5 || N11 || N2 || N6 || _ || _ || N1 |
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| F3 || N2 || N11 || N5 || N12 || N13 || N7 || _ || _ || N2 |
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| F4 || N3 || N12 || N5 || N13 || N4 || N8 || _ || _ || N3 |
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|- |
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| F5 || N4 || N13 || N5 || N10 || N1 || N9 || _ || _ || N4 |
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Revision as of 06:54, 12 April 2019
Introduction
This description is based on the MED format as described in modele de donnes.
Segment element
Edge | Node 1 | Node 2 | Middle node |
---|---|---|---|
E1 | N1 | N2 | N3 |
Triangle element
Edge | Node 1 | Node 2 | Middle node |
---|---|---|---|
E1 | N1 | N2 | N4 |
E2 | N2 | N3 | N5 |
E3 | N3 | N1 | N6 |
Face | Edge 1 | Edge 2 | Edge 3 |
---|---|---|---|
F1 | E1 | E2 | E3 |
Face | Node 1 | Node 2 | Node 3 | Node 1 |
---|---|---|---|---|
F1 | N1 | N2 | N3 | N1 |
Face | Node 1 | Node 2 | Node 3 | Node 4 | Node 5 | Node 6 | Node 1 |
---|---|---|---|---|---|---|---|
F1 | N1 | N4 | N2 | N5 | N3 | N6 | N1 |
Quadrangle element
Edge | Node 1 | Node 2 | Middle node |
---|---|---|---|
E1 | N1 | N2 | N5 |
E2 | N2 | N3 | N6 |
E3 | N3 | N4 | N7 |
E4 | N4 | N1 | N8 |
Face | Edge 1 | Edge 2 | Edge 3 | Edge 4 |
---|---|---|---|---|
F1 | E1 | E2 | E3 | E4 |
Face | Node 1 | Node 2 | Node 3 | Node 4 | Node 1 |
---|---|---|---|---|---|
F1 | N1 | N2 | N3 | N4 | N1 |
Face | Node 1 | Node 2 | Node 3 | Node 4 | Node 5 | Node 6 | Node 7 | Node 8 | Node 1 |
---|---|---|---|---|---|---|---|---|---|
F1 | N1 | N5 | N2 | N6 | N3 | N7 | N4 | N8 | N1 |
Tetrahedron element
Edge | Node 1 | Node 2 | Middle node |
---|---|---|---|
E1 | N1 | N2 | N5 |
E2 | N2 | N3 | N6 |
E3 | N3 | N1 | N7 |
E4 | N1 | N4 | N8 |
E5 | N2 | N4 | N9 |
E6 | N3 | N4 | N10 |
Face | Edge 1 | Edge 2 | Edge 3 |
---|---|---|---|
F1 | E1 | E2 | E3 |
F2 | E4 | -E5 | -E1 |
F3 | E5 | -E6 | -E2 |
F4 | E6 | -E4 | -E3 |
Face | Node 1 | Node 2 | Node 3 | Node 1 |
---|---|---|---|---|
F1 | N1 | N2 | N3 | N1 |
F2 | N1 | N4 | N2 | N1 |
F3 | N2 | N4 | N3 | N2 |
F4 | N3 | N4 | N1 | N3 |
Face | Node 1 | Node 2 | Node 3 | Node 4 | Node 5 | Node 6 | Node 1 |
---|---|---|---|---|---|---|---|
F1 | N1 | N5 | N2 | N6 | N3 | N7 | N1 |
F2 | N1 | N8 | N4 | N9 | N2 | N5 | N1 |
F3 | N2 | N9 | N4 | N10 | N3 | N6 | N2 |
F4 | N3 | N10 | N4 | N8 | N1 | N7 | N3 |
Hexahedron element
Edge | Node 1 | Node 2 | Middle node |
---|---|---|---|
E1 | N1 | N2 | N9 |
E2 | N2 | N3 | N10 |
E3 | N3 | N4 | N11 |
E4 | N4 | N1 | N12 |
E5 | N5 | N6 | N13 |
E6 | N6 | N7 | N14 |
E7 | N7 | N8 | N15 |
E8 | N8 | N5 | N16 |
E9 | N1 | N5 | N17 |
E10 | N2 | N6 | N18 |
E11 | N3 | N7 | N19 |
E12 | N4 | N8 | N20 |
Face | Edge 1 | Edge 2 | Edge 3 | Edge 4 |
---|---|---|---|---|
F1 | E1 | E2 | E3 | E4 |
F2 | -E8 | -E7 | -E6 | -E5 |
F3 | E9 | E5 | -E10 | -E1 |
F4 | E10 | E6 | -E11 | -E2 |
F5 | E11 | E7 | -E12 | -E3 |
F6 | E12 | E8 | -E9 | -E4 |
Face | Node 1 | Node 2 | Node 3 | Node 4 | Node 1 |
---|---|---|---|---|---|
F1 | N1 | N2 | N3 | N4 | N1 |
F2 | N5 | N8 | N7 | N6 | N5 |
F3 | N1 | N5 | N6 | N2 | N1 |
F4 | N2 | N6 | N7 | N3 | N2 |
F5 | N3 | N7 | N8 | N4 | N3 |
F6 | N4 | N8 | N5 | N1 | N4 |
Face | Node 1 | Node 2 | Node 3 | Node 4 | Node 5 | Node 6 | Node 7 | Node 8 | Node1 |
---|---|---|---|---|---|---|---|---|---|
F1 | N1 | N9 | N2 | N10 | N3 | N11 | N4 | N12 | N1 |
F2 | N5 | N16 | N8 | N15 | N7 | N14 | N6 | N13 | N5 |
F3 | N1 | N17 | N5 | N13 | N6 | N18 | N2 | N9 | N1 |
F4 | N2 | N18 | N6 | N14 | N7 | N19 | N3 | N10 | N2 |
F5 | N3 | N19 | N7 | N15 | N8 | N20 | N4 | N11 | N3 |
F6 | N4 | N20 | N8 | N16 | N5 | N17 | N1 | N12 | N4 |
Pentahedron element (prism)
Edge | Node 1 | Node 2 | Middle node |
---|---|---|---|
E1 | N1 | N2 | N7 |
E2 | N2 | N3 | N8 |
E3 | N3 | N1 | N9 |
E4 | N4 | N5 | N10 |
E5 | N5 | N6 | N11 |
E6 | N6 | N4 | N12 |
E7 | N1 | N4 | N13 |
E8 | N2 | N5 | N14 |
E9 | N3 | N6 | N15 |
Face | Edge 1 | Edge 2 | Edge 3 | Edge 4 |
---|---|---|---|---|
F1 | E1 | E2 | E3 | _ |
F2 | -E6 | -E5 | -E4 | _ |
F3 | E7 | E4 | -E8 | -E1 |
F4 | E8 | E5 | -E9 | -E2 |
F5 | E9 | E6 | -E7 | -E3 |
Face | Node 1 | Node 2 | Node 3 | Node 4 | Node 1 |
---|---|---|---|---|---|
F1 | N1 | N2 | N3 | _ | N1 |
F2 | N4 | N6 | N5 | _ | N4 |
F3 | N1 | N4 | N5 | N2 | N1 |
F4 | N2 | N5 | N6 | N3 | N2 |
F5 | N3 | N6 | N4 | N1 | N3 |
Face | Node 1 | Node 2 | Node 3 | Node 4 | Node 5 | Node 6 | Node 7 | Node 8 | Node 1 |
---|---|---|---|---|---|---|---|---|---|
F1 | N1 | N7 | N2 | N8 | N3 | N9 | _ | _ | N1 |
F2 | N4 | N12 | N6 | N11 | N5 | N10 | _ | _ | N4 |
F3 | N1 | N13 | N4 | N10 | N5 | N14 | N2 | N7 | N1 |
F4 | N2 | N14 | N5 | N11 | N6 | N15 | N3 | N8 | N2 |
F5 | N3 | N15 | N6 | N12 | N4 | N13 | N1 | N9 | N3 |
Pyramid element
Edge | Node 1 | Node 2 | Middle node |
---|---|---|---|
E1 | N1 | N2 | N6 |
E2 | N2 | N3 | N7 |
E3 | N3 | N4 | N8 |
E4 | N4 | N1 | N9 |
E5 | N1 | N5 | N10 |
E6 | N2 | N5 | N11 |
E7 | N3 | N5 | N12 |
E8 | N4 | N5 | N13 |
Face | Edge 1 | Edge 2 | Edge 3 | Edge 4 |
---|---|---|---|---|
F1 | E1 | E2 | E3 | E4 |
F2 | E5 | -E6 | -E1 | _ |
F3 | E6 | -E7 | -E2 | _ |
F4 | E7 | -E8 | -E3 | _ |
F5 | E8 | E5 | -E4 | _ |
Face | Node 1 | Node 2 | Node 3 | Node4 | Node1 |
---|---|---|---|---|---|
F1 | N1 | N2 | N3 | N4 | N1 |
F2 | N1 | N5 | N2 | _ | N1 |
F3 | N2 | N5 | N3 | _ | N2 |
F4 | N3 | N5 | N4 | _ | N3 |
F5 | N4 | N5 | N1 | _ | N4 |
Face | Node 1 | Node 2 | Node 3 | Node4 | Node 5 | Node 6 | Node 7 | Node8 | Node1 |
---|---|---|---|---|---|---|---|---|---|
F1 | N1 | N6 | N2 | N7 | N3 | N8 | N4 | N9 | N1 |
F2 | N1 | N10 | N5 | N11 | N2 | N6 | _ | _ | N1 |
F3 | N2 | N11 | N5 | N12 | N13 | N7 | _ | _ | N2 |
F4 | N3 | N12 | N5 | N13 | N4 | N8 | _ | _ | N3 |
F5 | N4 | N13 | N5 | N10 | N1 | N9 | _ | _ | N4 |
FEM
- Materials: Solid, Fluid, Nonlinear mechanical, Reinforced (concrete); Material editor
- Element geometry: Beam (1D), Beam rotation (1D), Shell (2D), Fluid flow (1D)
Constraints
- Electromagnetic: Electrostatic potential, Current density, Magnetization
- Geometrical: Plane rotation, Section print, Transform
- Mechanical: Fixed, Displacement, Contact, Tie, Spring, Force, Pressure, Centrif, Self weight
- Thermal: Initial temperature, Heat flux, Temperature, Body heat source
- Overwrite Constants: Constant vacuum permittivity
- Solve: CalculiX Standard, Elmer, Mystran, Z88; Equations: Deformation, Elasticity, Electrostatic, Electricforce, Magnetodynamic, Magnetodynamic 2D, Flow, Flux, Heat; Solver: Solver control, Solver run
- Results: Purge, Show; Postprocessing: Apply changes, Pipeline from result, Warp filter, Scalar clip filter, Function cut filter, Region clip filter, Contours filter, Line clip filter, Stress linearization plot, Data at point clip filter, Filter function plane, Filter function sphere, Filter function cylinder, Filter function box
- Additional: Preferences; FEM Install, FEM Mesh, FEM Solver, FEM CalculiX, FEM Concrete; FEM Element Types
User documentation
- Getting started
- Installation: Download, Windows, Linux, Mac, Additional components, Docker, AppImage, Ubuntu Snap
- Basics: About FreeCAD, Interface, Mouse navigation, Selection methods, Object name, Preferences, Workbenches, Document structure, Properties, Help FreeCAD, Donate
- Help: Tutorials, Video tutorials
- Workbenches: Std Base, Arch, Assembly, CAM, Draft, FEM, Inspection, Mesh, OpenSCAD, Part, PartDesign, Points, Reverse Engineering, Robot, Sketcher, Spreadsheet, Start, Surface, TechDraw, Test Framework, Web
- Hubs: User hub, Power users hub, Developer hub