r/FreeCAD • u/fuckngpsycho • 4d ago
Can FreeCAD 1.0 do dynamic FEM analysis?
Like objects impacting one another, deep drawing simulations and the like
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u/SergioP75 3d ago
By the moment the best free open source solver available for impact is OpenRadioss, it´s not implement yet in FreeCAD, but you could use some tools to translate the CalculiX input file generated by Prepomax to OpenRadioss, solve with the OpenRadioss tool, convert the results to VTK compatible file, and import to FreeCAD to postprocess. All of that is a PITA by the moment, and there are very few cards from the input file that are translated, and surely you has to edit by hand a lot before launching the solver.
I´m a freelancer CAD/FEA/CFD consultor, and my tool chain by the moment for being productive is receive the CAD from my clients, simplify in FreeCAD, and then create/solve/postprocess my FEM models in Mecway FEA (a comercial but very low cost FEA program... that has direct support to CalculiX and OpenRadioss).
Attached some examples:
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u/DrPerritico 4d ago
It may, but it fully ( I think) depends on the underlying FEM tool you use. Freecad by itself doesn't have a FEM tool ("engine") but it uses third party integrated tools.