i am still very new to FEA and continuing to ask questions. i am wondering about the following:
when simulating an almost square cabinet, lifted by two points on the diagonal, i find some very localized stress peaks. filleting sharp reentrant corners does not take away the stress peaks, but adding structure does.
even though the stresses are beyond the yield stress, the equivalent strains are quite small. is it safe to assume that, as long as the stress state is not hydrostatic, the material will only deform plastically in a very small volume and NOT rupture?