Author(s)

C.T.F. Ross, G. Apor & S.R Claridge

Abstract

The paper describes a theoretical and an experimental investigation into the buckling of three circumferentially corrugated circular cylinders under uniform external pressure. The experimental results showed that the vessels buckled through general instability. The theoretical analysis was of a semi-empirical nature, which involved the finite element method and an elastic knockdown factor to cater for inelastic instability. 1 Introduction The pressure hulls of submarines and the legs of off-shore drilling rigs are often constructed from thin-walled circular cylinders. Now under external water pressure, a thin-walled circular cylinder can buckle at a small fraction of the pressu

Keywords