Dynamic plastic behavior of circular plate usingunified yield criterion

Dynamic plastic behavior of a rigid!plastic simply supported circular plate under moderate partial uniformly distributed impulsive load is complemented by using a uni_ed yield criterion which consists of a generic of convex piecewise linear yield criteria[ Upper bound and lower bound plastic responses of the plate under rectangular pulse are obtained^ response behavior of the plate with respect to the Mises criterion is derived by a proximal manner[ The inconstant circumferential moment distribution and the non!linear ~ow velocity distribution in the periods corresponding to the two motion phases are suggested in this paper[ Static and kinematic admissibility of the dynamic plastic solutions is discussed and two types of moment pro_les for the plates under intense dynamic load are supposed for studying in the future