A Study of Creep Collapse of A Long Circular Cylindrical Shell Under Various Distributed Force Systems

An analysis is presented for determining the collapse of circular nngs and long cylinders subjected to primary and secondary creep -conditions at elevated temperatures. The types of loading considered for the present investigation are dead loading and hydros ta t ic pressure-type forces. The method of solution is based on ^.n application of the variational theorem for creep described in Ref. 1 with some additional terms being introduced for the pressure-type loading case. The general results are reduced to a relatively simple form for the theoretical predictions of collapse time and are graphically illustrated for a typical sample material.