Thanks for the suggestion! Do you maybe remember which parameters you had to tweak or which resources you found useful for that, apart from the CalculiX documentation?
I just revisited this after a while. I’m attempting to pre-stress a geometry using a simulation. Instead of using my normal method, I took an opportunity to look for other options out there. I found this:
As far as I can tell, it’s only available on Windows. It has some excellent documentation and can export Calculix *.inp files which can be directly executed using the Calculix adaptor. I only started using it today and have already produced some results.
This community project answers many questions you may have on setting up a coupled case with OpenFOAM and CalculiX. For the CalculiX part, they use FreeCAD to create the geometry, unical3 to convert it to a CalculiX mesh, and frdToVTKConverter for post-processing.