FEM Element Types: Difference between revisions
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== Introduction == |
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This description is based on the MED format as described in [https://hammi.extra.cea.fr/static/MED/web_med/logiciels/med-2.3.1/doc/html/modele_de_donnees.html#3. modele de donnes]. |
This description is based on the MED format as described in [https://hammi.extra.cea.fr/static/MED/web_med/logiciels/med-2.3.1/doc/html/modele_de_donnees.html#3. modele de donnes]. |
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[[Image:triangles.gif]] |
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[[Image:FEM_mesh_elements_2_triangle.svg|600px]] |
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== |
== Quadrangle element == <!--T:4--> |
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[[Image:FEM_mesh_elements_3_quadrangle.svg|600px]] |
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|- |
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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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{| 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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| 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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{| 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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{| 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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|- |
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| F2 || N1 || N5 || N2 || _ || N1 |
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|- |
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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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{| 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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|- |
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| F3 || N2 || N11 || N5 || N12 || N13 || N7 || _ || _ || N2 |
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|- |
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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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|+ Faces by Nodes of Hexa20 |
|+ Faces by Nodes of Hexa20 |
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|- |
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! Face !! Node 1 !! Node 2 !! Node 3 !! Node 4 !! Node 5 !! Node 6 !! Node 7 !! Node 8 !! |
! Face !! Node 1 !! Node 2 !! Node 3 !! Node 4 !! Node 5 !! Node 6 !! Node 7 !! Node 8 !! Node 1 |
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|- |
|- |
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| F1 || N1 || N9 || N2 || N10 || N3 || N11 || N4 || N12 || N1 |
| F1 || N1 || N9 || N2 || N10 || N3 || N11 || N4 || N12 || N1 |
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== Pentahedron element == <!--T:8--> |
== Pentahedron element (prism) == <!--T:8--> |
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[[Image:FEM_mesh_elements_6_pentahedron.svg|600px]] |
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== Pyramid element == <!--T:6--> |
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{{FEM Tools navi}} |
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[[Image:FEM_mesh_elements_7_pyramid.svg|600px]] |
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[[Category:Poweruser_Documentation]] |
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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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{| 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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| 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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{| 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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! Face !! Node 1 !! Node 2 !! Node 3 !! Node 4 !! Node 1 |
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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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{| 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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! Face !! Node 1 !! Node 2 !! Node 3 !! Node4 !! Node 5 !! Node 6 !! Node 7 !! Node 8 !! Node 1 |
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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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Latest revision as of 09:18, 30 November 2023
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 | Node 1 |
---|---|---|---|---|---|---|---|---|---|
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 | Node 4 | Node 1 |
---|---|---|---|---|---|
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 | Node 8 | Node 1 |
---|---|---|---|---|---|---|---|---|---|
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