Drucker–Prager Yield Criterion - Drucker–Prager Model For Foams

Drucker–Prager Model For Foams

For foams, the GAZT model uses

A = \pm \cfrac{\sigma_y}{\sqrt{3}} ~;~~ B = \mp \cfrac{1}{\sqrt{3}}~\left(\cfrac{\rho}{5~\rho_s}\right)

where is a critical stress for failure in tension or compression, is the density of the foam, and is the density of the base material.

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