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Essential Questions for FEA

  1. Do you need it?
  2. Have results been checked against good estimates?
  3. What are the capabilities & limitations of element type(s) used?
  4. What is aspect ratio (longest/shortest side) of worst element in mesh?
  5. How have loads and constraints been modeled?
  6. Do boundary results make sense?
  7. What is being displayed?
  8. Is "stress averaging" masking discontinuities?
  9. How much will results change if mesh size is doubled?

Finite Element Mesh