Plastic Axisymmetric Collapse of Thin-Walled Circular Cylinders and Cones Under Uniform External Pressure

摘要

This paper reports on two theoretical investigations and an experimental investigation into the plastic axisymmetric buckling of two thin-walled conical shells and several thin-walled circular cylindrical shells, under uniform external pressure. One of the theoretical investigations was a non-linear finite element solution for plastic axisymmetric buckling, which gave good results. The other theoretical solution was for the plastic non-symmetric bifur- cation bucking of thin-walled circular cylinders.