From FreeCAD Documentation
This description is based on the MED format as described here.
Segment element
File:Segments.gif
Edges of Seg2 and Seg3
Edge |
Node 1 |
Node 2 |
Middle node
|
E1 |
N1 |
N2 |
N3
|
Triangle element
File:Triangles.gif
Edges of Tria3 and Tria6
Edge |
Node 1 |
Node 2 |
Middle node
|
E1 |
N1 |
N2 |
N4
|
E2 |
N2 |
N3 |
N5
|
E3 |
N3 |
N1 |
N6
|
Face by Edges of Tria3 and Tria6
Face |
Edge 1 |
Edge 2 |
Edge 3
|
F1 |
E1 |
E2 |
E3
|
Face by Nodes of Tria3
Face |
Node 1 |
Node 2 |
Node 3 |
Node 1
|
F1 |
N1 |
N2 |
N3 |
N1
|
Face by Nodes of Tria6
Face |
Node 1 |
Node 2 |
Node 3 |
Node 4 |
Node 5 |
Node 6 |
Node 1
|
F1 |
N1 |
N4 |
N2 |
N5 |
N3 |
N6 |
N1
|
Quadratic element
File:Quadrangles.gif
Edges of Quad4 and Quad8
Edge |
Node 1 |
Node 2 |
Middle node
|
E1 |
N1 |
N2 |
N5
|
E2 |
N2 |
N3 |
N6
|
E3 |
N3 |
N4 |
N7
|
E4 |
N4 |
N1 |
N8
|
Face by Edges of Quad4 and Quad8
Face |
Edge 1 |
Edge 2 |
Edge 3 |
Edge 4
|
F1 |
E1 |
E2 |
E3 |
E4
|
Face by Nodes of Quad4
Face |
Node 1 |
Node 2 |
Node 3 |
Node 4 |
Node 1
|
F1 |
N1 |
N2 |
N3 |
N4 |
N1
|
Face by Nodes of Quad8
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
File:Tetraedres.gif
Edges of Tetra4 and Tetra10
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
|
Faces by Edges of Tetra4 and Tetra10
Face |
Edge 1 |
Edge 2 |
Edge 3
|
F1 |
E1 |
E2 |
E3
|
F2 |
E4 |
-E5 |
-E1
|
F3 |
E5 |
-E6 |
-E2
|
F4 |
E6 |
-E4 |
-E3
|
Faces by Nodes of Tetra4
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
|
Faces by Nodes of Tetra10
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
|
Pyramid element
File:Pyramides.gif
Edges of Pyra5 and Pyra13
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
|
Faces by Edges of Pyra5 and Pyra13
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 |
_
|
Faces by Nodes of Pyra5
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
|
Faces by Nodes of Pyra13
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
|
Hexahedron element
File:Hexaedres.gif
Edges of Hexa8 and Hexa20
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
|
Faces by Edges of Hexa8 and Hexa20
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
|
Faces by Nodes of Hexa8
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
|
Faces by Nodes of Hexa20
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
File:Pentaedres.gif
Edges of Penta6 and Penta15
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
|
Faces by Edges of Penta6 and Penta15
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
|
Faces by Nodes of Penta6
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
|
Faces by Nodes of Penta15
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
|