ABSTRACT
In a typical autofrettage process, a thick-walled vessel is first subjected to a radial temperature gradient along the thickness direction of the wall during loading. During unloading, the cylinder is cooled down to room temperature. The practical implementation of thermal autofrettage was demonstrated by S. M. Kamal et al. The researchers heated the outer wall of the thick-walled cylinder using an electrical heating coil while cold water was circulated through the bore. The chapter presents a closed-form model of thermal autofrettage considering plane–stress assumption. It also presents a detailed study of the thermal autofrettage of thick-walled disks and cylinders. It describes the concept of thermal autofrettage. The chapter expains the plane–stress model of thermal autofrettage and the generalized plane–strain model of thermal autofrettage. It provides the typical results of the thermal autofrettage of a sphere.
