Failure of elasto-plastic porous materials subjected to triaxial loading conditions
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![Fig. 1 shows SOM maps of the critical equivalent plastic strain ε e p attained when (a) the limit load (i.e., maximum in the σ e − ε e curve or equivalently critical hardening rate H = 0) and (b) the conditions for localization [7] and loss of ellipticity](https://thumb-eu.123doks.com/thumbv2/123doknet/11565827.297235/3.892.118.777.80.387/critical-equivalent-attained-equivalently-hardening-conditions-localization-ellipticity.webp)
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