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Is it reasonable, to do linear natural frequency analysis for a plastic part of uniform thickness?
- Thread starter ninjaz
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In a frequency analysis you have no other choice than using the linear elastic behavior of the material, since it is a pure linear procedure.
The only thing you could do, is doing a nonlinear step before, to change the stiffness of the material.
The only thing you could do, is doing a nonlinear step before, to change the stiffness of the material.
Mustaine3 is correct that only linear elastic behavior is used in a frequency analysis. If you feel it is important to account for nonlinear behavior, you could do a full (direct) transient solution to find the response to a particular loading condition.
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