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Plastic strain allowable

Thread starter Drej
Start date Jul 28, 2015

Status: Not open for further replies.

Jul 28, 2015

Drej

Mechanical

I'm looking into developing a methodology which permits the use of a small plastic strain allowable (2%) calculated using pseudo-static linear elastic methods. The structure is effectively a simply supported beam subject to rapid high 'g' impulse loading, and the allowable would be plastic strain under bending. Common criteria such as the use of yield stress are too limiting for bending. I'm looking possibly into using strain energy density methods to determine equivalent plastic strain or something similar. Has anyone ever tried such an approach?

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