In the present paper, creep analysis of spherical shell has been done under the
influence of internal and external pressure. Creep stresses in a spherical shell
are derived by using principal strain measure and Seth’s transition theory. A
novel feature of the transition theory is its ability to give a uniform
treatment of plastic and creep deformation without making ad hoc assumptions
like yield criterion or creep laws. The expressions obtained are valid for
compressible as well as incompressible materials.
Keywords: creep, pressure, spherical shell, stress