FEM Element Types

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Revision as of 09:27, 28 November 2015 by Berndhahnebach (talk | contribs)
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This description is based on the MED format as described here.

Segment element


Triangle element


Quadratic element


Tetrahedron element


Tetrahedron with four or ten nodes
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
Tetrahedron Faces
Face Edge 1 Edge 2 Edge 3
F1 E1 E2 E3
F2 E4 -E5 -E1
F3 E5 -E6 -E2
F4 E6 -E4 -E3

Pyramid element


Hexahedron element


Hexahedron with eight or twenty nodes
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 N7 N15
E8 N8 N5 N16
E9 N1 N5 N17
E10 N2 N6 N18
E11 N3 N7 N19
E12 N4 N8 N20
Hexahedron faces
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

Pentahedron element


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