ABSTRACT
Thick-walled circular cylinders and spheres and rotating discs and rings are very important in a number of different branches of engineering, including ocean engineering, nuclear engineering and automobile and aeronautical engineering. In ocean engineering they appear as thick-walled submarines and drilling devices for both military and commercial uses. These vessels are also important in the design of nuclear reactors and underwater pipes, and for the barrels of guns. The thick-walled theory can be extended to deal with the shattering of rings and discs due to rotation, of much importance in automobile and aeronautical engineering. This chapter shows to: derive hoop and radial stress equations for a thick-walled cylinder, understand and interpret Lame lines, perform calculations on compound cylinders, appreciate plastic yielding of thick tubes. It also shows to: derive equations for stresses in rotating discs and derive an equation for the angular velocity required to fracture a rotating ring.
