ABSTRACT
This chapter deals with the shells of finite length, with a local depression, in the conditions of the presence of an aggressive medium. The solutions for the shells made of scleronomic and rheonomic materials, at low and large deflections, in different types of initial irregularities are obtained. The chapter examines the deformation of a slightly oval ring made of an elastic-ideally plastic material under the external hydrostatic pressure. It investigates the deformation of the ring made of a material governed by the elastic-ideal plastic model or the elastoplastic model with linear hardening. Long thin cylindrical shells represent compound elements of complicated structures. It is interesting to investigate the deformation of such a shell under the effect of external hydrostatic pressure. If the cross-section of the shell is ideally circular, it is necessary to solve the problem of determining bifurcation loading.
