FEM Mesh CalculiX

From FreeCAD Documentation

FEM Element Types

Segment element


Triangle element


Quadratic element


Tetrahedron element


Hexahedron element

Hexahedron element from FreeCAD to CalculiX -- node assignment
hex8 FreeCAD nodes hex20 FreeCAD nodes
hex8 FreeCAD nodes element rotated hex20 FreeCAD nodes element rotated
File:Hexa8--fc rotated.png File:Hexa20--fc rotated.png
hex8 (C3D8) CalculiX nodes hex20 (C3D20) CalculiX nodes
FreeCAD
N1, N2, N3, N4, N5, N6, N7, N8 N1, N2, N3, N4, N5, N6, N7, N8, N9, N10, N11, N12, N13, N14, N15, N16, N17, N18, N19, N20
CalculiX
N1, N4, N3, N2, N5, N8, N7, N6 N1, N4, N3, N2, N5, N8, N7, N6, N12, N11, N10, N9 , N16, N15, N14, N13, N17, N20, N19, N18


Pentahedron element

Pentahedron element from FreeCAD to CalculiX -- node assignment
penta8 FreeCAD nodes penta15 FreeCAD nodes
File:Penta8--fc.png
penta8 FreeCAD nodes element rotated penta15 FreeCAD nodes element rotated
File:Penta8--fc rotated.png File:Penta15--fc rotated.png
penta8 (C3D6) CalculiX nodes penta15 (C3D15) CalculiX nodes
File:Penta8--ccx.png
FreeCAD
N1, N2, N3, N4, N5, N6 N1, N2, N3, N4, N5, N6, N7, N8, N9, N10, N11, N12, N13, N14, N15
CalculiX
N1, N1,