Task 3 The fatigue data for a brass alloy are given as follows: Cycles to Failure Stress Amplitude (MPa) 310 223 191 168 153 143 134 127 2 x 105 1 x 106 3 x 106 1 x 10 3 x 10 1 x 108 3 x 10 1 x 109 a. Make a plot of stress amplitude versus logarithm cycles to failure using these data. b. Determine the fatigue strength at 5 x 105 cycles. c. Determine the fatigue life for 200 MPa