Stress amplitude, o [MPa] describe the stress-scenario that has been applied to create below shown Wohler-curve with the help of given values for R and F. (4 P) 180 160 140 120 100 80 60 104 105 106 R = -0.1 F = 2 Hz 107 Cycles to failure, N 108 10 1010 R= O O min max D = N