Geometry Processing Problem

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  • willvadom
    Junior Member
    • May 2020
    • 6

    Geometry Processing Problem

    Hello!

    I am currently developing a total knee replacement finite element model the implant geometries of which were obtained from the Sixth SimTK Grand Challenge Competition. These geometries are consisted of triangles or hexahedra and are very dense.
    Although, when I try to simplify them, many artifacts are presented on their surface (such as non-manifold areas, self-intersections, sharp edges etc.) which destroy the shape of the geometries and prevent the FEM from converging. So, I would like to describe the surface of these geometries by using another method (ex. NURBS) or an open-source software in such a way so that their shape is preserved without being too dense.
    Are there any methods or software to do so?

    Thank you.
  • ateshian
    Developer
    • Dec 2007
    • 1824

    #2
    Hi,

    Please see this post: https://forums.febio.org/showthread....ight=meshmixer which explains that you can clean up STL geometry using the free software MeshMixer, then import it to FEBioStudio and mesh it there.

    Best,

    Gerard

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    • willvadom
      Junior Member
      • May 2020
      • 6

      #3
      Thank you very much for your time and concern!!

      Best,

      Will

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