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How Small is Large deformation

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PaulRomanos

Mechanical
May 12, 2012
5
Hey,

I'm a relatively recent graduate (6 months) and have been using structural FEA for a year now. I think I understand most of the basic theory behind it but I just have one practical question that I can't seem to find an answer to in books.

I understand that a static linear isotropic FEA simulation depends mainly on 2 assumptions

- Linear behavior, i.e equivalent stress < yield strength
- Small deformation
 
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