CAD tools will typically have a feature to aid in the removal of fillets/rounds, like the fill command in Ansys SpaceClaim. However, square edges are much easier for meshing in the FEA world, and most small fillets/rounds will not affect global displacement calculations. Edges are typically rounded and CAD models will often include this rounding on many, if not all, of the geometric bodies. Truly square edges rarely exist in the real world. Perhaps the most common details that can be immediately removed from most CAD models are the fillets and rounds. Finite Element Analysis Optimization: Removing Unnecessary Object Features
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Worse, the inclusion of unnecessary details in an FEA model can result in poor quality meshes, inefficient simulations run times and inaccurate results.įor an analyst, understanding when and how to simplify a model that was passed to them by a designer is a key skill for an effective FEA simulation. However, much of this detail is often unnecessary in FEA.
Watch the on-demand webinar ‘ECAD to FEA in 5 minutes’ to learn more. Designers’ CAD models typically include tremendous detail, which would take hours or days of processing to incorporate into a simulation analysis. A common mistake among beginner FEA users is assuming that a computer-aided design (CAD) model created as part of the product design process can be plugged directly into an FEA study. Generating model geometry is one of the most difficult aspects of FEA.
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