Viscoplastic flow in a rotating hollow cylinder

The strains and stresses in a rotating hollow cylinder are investigated. Problem is studied using infinitesimal strain theory, Hooke's law, modified von Mises yield criterion and the flow rule associated with it. The exact steady solution is obtained. Nonsteady problem is solved by numerical algorithm based on finite difference method. The results of computations are presented by plots of the stresses, displacements and strains.