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Eigen-value Analysis

Eigen-value Analysis

Eigen-value Analysis

(OP)
Hallo friends,

I have calculated the eigenvalue of orthotropic plate in FEM, how i can calculate the eigen value analyically???

is it not (the critical buckling load/refference load)??

thanks!

RE: Eigen-value Analysis

Your terminology may lead people astray. In my field the eigenvalue is the frequency of a resonant mode. If you mean, how do you calculate the buckling strength of a flat plate, I suspect Mr Roarke's book or Timoshenko is the place to start.

Cheers

Greg Locock


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RE: Eigen-value Analysis

The eigenvalue solver can be used for both natural frequency and buckling problems.

For plates that are orthotropic in bending, you can find some basic solutions in MIL-HDBK-17. There are quite a few more solutions in "Mechanics of Composite Structures" by Kollar and Springer.

Brian
www.espcomposites.com

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