A tension member in a machine is filleted as shown in Figure. The member has a manufacturing defect that causes the fluctuating tension load to be applied eccentrically resulting in

a fluctuating bending load as well.Measurements indicate that the maximum bending stress is 16.4 MPa and the minimum is 4.1 MPa. The tensile load fluctuates from a high of 3.6 kN to a low of 0.90 kN and is in phase with the bending stress. The member is machined and its dimensions are D= 33 mm, d= 25 mm, h = 3 mm and r% D3 mm. The material is SAE 1020 cold-rolled steel. Determine the infinite-life fatigue safety factor for the member for 90% reliability.