A modification was proposed about Uemura's method of plastic stress calculation in circumferentially notched specimen, and as the result, plastic stress and strain distributions were obtained, Figs. 5 and 6. The condition for static fracturing was further discussed : a schematic representation as in Fig. 9 was concluded, in which two fracture stress surfaces were introduced. It was revealed also that this condition can approximately be described using the concept of the fracture stress curves, investigated in previous reports.