I would like to understand the capabilities of Fenics with regards to what is referred to as finite element limit analysis. It is commonly deployed when calculating collaspe loads, rather than defomations.
In this type of FE analysis, the elements have unique nodes, i.e. they do not share them with adjacent elements. A set of constraints are applied both in terms of equilibrium and plastic yielding and linear/nonlinear programming techniques are employed to find maxium loads.
Any constructive thoughts would be appreciated.