Abstract

To increase the safety of various spherical shell components under pressure environments, the present research\ndeals with the study of elastic -plastic stresses in a spherical shell under the effect of external pressure. The solution of the\nproblem has been obtained by using the Seth’s transition theory of elastic-plastic transitions. The transition theory does not\nassume classical assumptions like incompressibility and yield conditions. The radial and circumferential stresses have been\ncalculated for the spherical shell for compressible as well as incompressible materials. It has been observed that the spherical\nshell made of incompressible material requires high pressure to start initial yielding in the shell as compared to spherical shell\nmade of compressible material. The results derived are shown graphically.