FEM Mesh CalculiX
Jump to navigation
Jump to search
FEM element types in CalculiX
For detailed information on FreeCAD FEM elements see FEM Mesh and FEM Element Types.
Segment element
| seg2 FreeCAD nodes | seg3 FreeCAD nodes |
 |
|
| seg2 (B31) CalculiX nodes | seg3 (B32) CalculiX nodes |
|
|
| FreeCAD → CalculiX, Nodes | |
| N1, N2 | N1, N3, N2 |
Triangle element
| tria3 FreeCAD nodes | tria6 FreeCAD nodes |
 |
|
| tria3 (S3) CalculiX nodes | tria6 (S6) CalculiX nodes |
 |
|
| FreeCAD → CalculiX, Nodes | |
| N1, N2, N3 | N1, N2, N3, N4, N5, N6 |
Quadratic element
| quad4 FreeCAD nodes | quad8 FreeCAD nodes |
 |
|
| quad4 (S4) CalculiX nodes | quad8 (S8) CalculiX nodes |
 |
|
| FreeCAD → CalculiX, Nodes | |
| N1, N2, N3, N4 | N1, N2, N3, N4, N5, N6, N7, N8 |
Tetrahedron element
The following node order is not implemented ! TODO: verify node order (do not forget getccxVolumesByFace()).
| tetra4 FreeCAD nodes | tetra10 FreeCAD nodes |
 |
|
| tetra4 (C3D4) CalculiX nodes | tetra10 (C3D10) CalculiX nodes |
 |
|
| FreeCAD → CalculiX, Nodes | |
| N2, N3, N4, N1 | N2, N3, N4, N1, N6, N10, N9, N5, N7, N8 |
Hexahedron element
| hexa8 FreeCAD nodes | hexa20 FreeCAD nodes |
 |
|
| hexa8 (C3D8) CalculiX nodes | hexa20 (C3D20) CalculiX nodes |
 |
|
| FreeCAD → CalculiX, Nodes | |
| N6, N7, N8, N5, N2, N3, N4, N1 | N6, N7, N8, N5, N2, N3, N4, N1 , N14, N15, N16, N13, N10, N11, N12, N9, N18, N19, N20, N17 |
Pentahedron element
| penta6 FreeCAD nodes | penta15 FreeCAD nodes |
 |
|
| penta6 (C3D6) CalculiX nodes | penta15 (C3D15) CalculiX nodes |
 |
|
| FreeCAD → CalculiX, Nodes | |
| N5, N6, N4, N2, N3, N1 | N5, N6, N4, N2, N3, N1, N11, N12, N10, N8, N9, N7, N14, N15, N13 |
FEM 
- Materials: Solid, Fluid, Nonlinear mechanical; Material editor
- Element geometry: Beam (1D), Beam rotation (1D), Shell (2D), Fluid flow (1D)
Constraints
- Electrostatic: Potential
- Fluid: Initial velocity, Fluid boundary, Flow velocity
- Mechanical: Fixed, Displacement, Plane rotation, Contact, Transform, Force, Pressure, Self weight, Bearing, Gear, Pulley
- Thermal: Initial temperature, Heat flux, Temperature, Heat source
- Solve: Calculix tools, CalculiX, Elmer, Z88; Equations: Heat, Elasticity, Electrostatic, Fluxsolver, Flow; Solver: Solver control, Solver run
- Results: Purge, Show; Postprocessing: Apply changes, Pipeline from result, Create warp vector filter, Create scalar clip filter, Create cut filter, Create clip filter, Create data along line filter, Create linearized stresses,
Create data at point filter, Create functions
- Utilities: Clipping plane, Remove clipping planes; Mesh clear, Mesh print info
- Additional: Preferences; FEM Install, FEM Mesh, FEM Solver, FEM CalculiX, FEM Project, FEM Concrete; FEM Element Types
User documentation 
- Installation: Linux/Unix, Windows, Mac, Docker, AppImage; Getting started
- Basics: About FreeCAD, Workbenches, Preferences, Document structure, Interface Customization, Properties, Mouse Model; Tutorials, Video tutorials
- Workbenches: Std Base; Arch, Draft, FEM, Image, Inspection, Mesh, OpenSCAD, Part, PartDesign, Path, Plot, Points, Raytracing, Reverse Engineering, Robot, Ship, Sketcher, Spreadsheet, Start, Surface workbench, TechDraw, Test Framework, Web
- Scripting: Introduction to Python, FreeCAD scripting tutorial, FreeCAD Scripting Basics, How to install macros, Gui Command, Units Modules: Builtin modules, Workbench creation, Installing more workbenches Meshes: Mesh Scripting, Mesh Module Parts: The Part Module, Topological data scripting, PythonOCC, Mesh to Part Coin scenegraph: The Coin/Inventor scenegraph, Pivy Qt interface: PySide, Using the FreeCAD GUI, Dialog creation Parametric objects: Scripted objects Other: Code snippets, Line drawing function, Embedding FreeCAD, FreeCAD vector math library, Power users hub, Python, Macros, FreeCAD Scripting Basics, Topological data scripting
