ON THE PROBLEM OF AXIAL-SYMMETRIC PLASTIC DEFORMATION

In the usual treatment of plane deformation problems in plasticity,the assumption ofstatic determinacy is frequently made,with the advantage of obtaining stress distributionswithout reference to stress-strain relations.In the present paper,we consider the problemof axial-symmetric defomation,where this advantage is no longer existing.The materialis assumed to be incompressible and entirely in a plastic state.The equations of

In the usual treatment of plane deformation problems in plasticity, the assumption of static determinacy is frequently made, with the advantage of obtaining stress distributions without reference to stress-strain relations. In the present paper, we consider the problem of axial-symmetric deformation, where this advantage is no longer existing. The material is assumed to be incompressible and entirely in a plastic state. The equations of equilibrium are