FEM CalculiX Cantilever 3D
Tutorial |
Topic |
---|
{{{Topic}}} |
Level |
Beginner |
Time to complete |
10 minutes |
Authors |
Bernd |
FreeCAD version |
0.16.6377 or above |
Example files |
See also |
None |
Introduction
! DO NOT TRANSLATE AT THE MOMENT ! This example is meant to show how an simple Finite Element Analysis done by the FEM_Module looks like. The results could be visualized. Furthermore with the example file it is easy to check if the FEM module is set up properly.
Requirements
- FCVersion=0.16.6377 or above.
- This could be checked at the menu Help --> about FreeCAD --> Revisionnumber which has to be bigger than 6377
- No external software is needed for loading the example file, viewing the mesh and geometry as well as for visualizing the results.
Example File
Load Start Workbench
- Start FreeCAD
- The Start Workbench should be loaded
Load the example file
- Go to the example projects and click on "Load an FEM analysis example"
- If due to further operations some geometry, constraints or the results are broken or deleted just repeat the steps above.
Activate the analysis container
- To work with an analysis the analysis has to be activated.
- In tree view right click on the analysis --> activate analysis
Analysis container and its objects
- Next step will be to give an material to our model
Constraints
from here still ToDO
- What needed next is to add some fixed and force constraints to our model.
FEM Mesh
- The two possibilities by either the build in mesher Netgen and the external mesher GMSH will be shown in this tutorial. There are various
Netgen
- Select the shape you wish to mesh, in this case our Cube and click on File:Fem FemMesh.svg Create FEM mesh.
GMSH
- If FreeCADs build in mesher Netgen is not available the usage of Macro_GMSH is recommended, and is used for this example.
Running the Solver
- Select the solver object of the analysis in tree view and press File:Fem QuickAnalysis.svg Quick Analysis from the icon tool bar
- The analysis will be made and the result object should be created.
Analyzing Results
- Select File:Fem Result.svg Show result
- Choose among the different Result types to view the results
- The slider at the bottom can be used to alter the mesh to view the deformation in a simplified manner
- To remove the results select File:Fem PurgeResults.png Purge results
We are now finished with the basic workflow for the FEM Module.