On the creep buckling of circular cylindrical shells

Approaches to the creep buckling of clamped circular cylindrical shells subjected to axial compression combined with internal pressure are investigated with special emphasis on the concept of creep stability and the accuracy of the analysis. The instability in creep is discussed first, and it is elucidated that the pertinent phenomena can be analysed by a quasi-static method. Then, the formulation of the problem and the method of calculation of the resulting equations are studied. The influence of the creep laws and the non-linearity in field equations on the creep buckling of shells are also discussed.