Evolutive laws in non-smooth plasticity.

In this paper we present formulations of flow laws and evolutive laws in non-smooth plasticity. This formulations are suitable for non-smooth problems in plasticity theory. The tools of convex analysis is adopted in order to properly treat non-differentiable functions. Within this framework generalized forms of flow laws and complimentarity conditions are expressed. The treatment is particularly useful for variational formulations and for the development of computational algorithms in non-smooth plasticity problems. [ABSTRACT FROM AUTHOR]