An 8.0 mm (0.31 in.) diameter cylindrical rod fabricated from a red brass alloy (Figure 8.34) is subjected to reversed tension-compression load cycling along its axis. If the maximum tensile and compressive loads are + 7500 N (1700 lbf) and - 7500 N (- 1700 lbf), respectively, determine its fatigue life. Assume that the stress plotted in Figure 8.34 is stress amplitude.