Cylindrical and Spherical problem in Mechanical engineering has been discuss by using Seths B.R. Theory.For the problems in Elastic - plastic transition stresses in a transversely isotropic thick-walled cylinder subjected to internal pressure and steady state temperature, it has been observed that at room temperature, thick-walled cylinder made of isotropic material yields at a high pressure at the internal surface as compared to cylinder made of transversely isotropic material. With the introduction of thermal effects isotropic/transversely isotropic cylinder yields at a lower...