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Which of these is NOT a reason hand idealisations survive alongside finite element analysis?

  • A.They make the load path explicit
  • B.They provide an independent check on order of magnitude
  • C.They are quick enough to use while the design is still changing
  • D.They are more accurate than finite element models

Answer: D

Correct answer: They are more accurate than finite element models

Hand methods are not more accurate; a well-built finite element model will beat them on any geometry of consequence. They survive for the other three reasons: they make the load path explicit and so force the analyst to think about it, they give an independent order-of-magnitude check on the computer’s answer, and they are quick enough to keep pace with a design that is still moving.

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