Graphical Solution of Thermal Stresses by Welding (2nd Report)

Abstract

The effects of external constraints upon thermal stresses in butt welded V joints are discussed in this paper. The stress-strain relation in plastic regions at high temperature is idealised as in Fig. 3 considering work hardening, the strengthening effect of which assumed to be same at any temperature. The stress increments are graphically calculated by each small time intervals and superposed on the previous stress values, then the distributions of strain accordingly determined. Figs. 7-12 and Table 2 are the calculated results.