The shaft consists of rod segments AB and CD , and the tubular segment BC . If the torqu...

The shaft consists of rod segments AB and CD , and the tubular segment BC . If the torque T = 10 kN m is applied to the shaft, determine the required minimum diameter of the rod and the maximum inner diameter of the tube. The outer diameter of the tube is 120 mm, and the material has an allowable shear stress of τ_allow = 75 MPa.