Difference between revisions of "FEM Element Types"

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Revision as of 07:59, 11 August 2015

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
A1 N1 N2 N5
A2 N2 N3 N6
A3 N3 N1 N7
A4 N1 N4 N8
A5 N2 N4 N9
A6 N3 N4 N10
Tetrahedron Faces
Face Edge 1 Edge 2 Edge 3
F1 A1 A2 A3
F2 A4 -A5 -A1
F3 A5 -A6 -A2
F4 A6 -A4 -A3

Pyramid element


Hexahedron element

Hexahedron with eight or twenty nodes
Edge Node 1 Node 2 Middle node
A1 N1 N2 N9
A2 N2 N3 N10
A3 N3 N4 N11
A4 N4 N1 N12
A5 N5 N6 N13
A6 N6 N7 N14
A7 N7 N7 N15
A8 N8 N5 N16
A9 N1 N5 N17
A10 N2 N6 N18
A11 N3 N7 N19
A12 N4 N8 N20
Hexahedron faces
Face Edge 1 Edge 2 Edge 3 Edge 4
F1 A1 A2 A3 A4
F2 -A8 -A7 -A6 -A5
F3 A9 A5 -A10 -A1
F4 A10 A6 -A11 -A2
F5 A11 A7 -A12 -A3
F6 A12 A8 -A9 -A4

Pentahedron element


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