Solve Prob. 618 except include a steady torque of 2200 lbf in being transmitted through the shaft between the points of application of the

Solve Prob. 6–18 except include a steady torque of 2200 lbf · in being transmitted through the shaft between the points of application of the forces.

Prob. 6–18, Solve Prob. 6–17 except with forces F1 = 1200 lbf and F2 = 2400 lbf.

Prob. 6–17, The shaft shown in the figure is machined from AISI 1040 CD steel. The shaft rotates at 1600 rpm and is supported in rolling bearings at A and B. The applied forces are F1 = 2500 lbf and F2 = 1000 lbf. Determine the minimum fatigue factor of safety based on achieving infinite life. If infinite life is not predicted, estimate the number of cycles to failure.

Also check for yielding.

8 in 8 in in F. 10 in 10 in in in AII filletsin R. 16