I'm looking for Open Source alternatives to commercial Finite Element softwares such as Ansys or Nastran/Patran. Some features that I would like to have:

  • Mesh generator after importing a geometry file (.igs or .stl formats)
  • Capability to import/export meshes from/to other softwares
  • Material properties library
  • Static analysis
  • Modal analysis
  • Transient and dynamic analysis (optional)

Which would you recommend and why ? Are there any available on Linux ?


Try OpenFOAM which is Open-source Field Operation And Manipulation. It is greatly used for CFD (Computational Fluid Dynamics). It can do Meshing, Physical Modeling and Solving with various CFD solvers. Here is an OpenFOAM User Guide might be useful. Another tool is ParaView very useful for post-processing i.e visualization. I believe the combination of OpenFOAM and Paraview would satisfy your most of the requirement.

It is easily available for GNU/Linux distributions (refer this) and licensed under GPLv3.

  • CFD is not the same as FEM. – Eric S Sep 15 '19 at 19:00
  • @EricShain CFD constitute FEA, FDM and FVM all the methods – Pandya Sep 16 '19 at 0:52
  • I respectfully disagree. – Eric S Sep 16 '19 at 2:14

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