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So even a constant thickness shell model should still yield fairly accurate results?

Thank you all I will try a shell element model.

It's modeled as a knife edge. I am newer to FEA and meshing - when you say make sure that they aren't distorted too much, what should I look for visually e.g. for a tetrahedral element that would tell me that it is too distorted? More to the verify mesh tool, is the aspect ratio critical i.e...

Thanks for the reply. I tried that, but I still got the poor aspect ratio and error of distorted elements (.dat file below)

Hi, I would like to conduct a frequency analysis on the following fin in Abaqus. In the mesh module > mesh controls Abaqus only lets me use a Tet mesh (or a bottom up Hex). However, if I mesh with tetrahedral elements I get a very bad aspect ratio for the elements on the leading edge of the...