A solid aluminum alloy (Y = 320 MPa) shaft extends 200 mm from a bearing support to the ce...

A solid aluminum alloy (Y = 320 MPa) shaft extends 200 mm from a bearing support to the center of a 400-mm diameter pulley (Figure P4.40). The belt tensions T1and T2vary inmagnitude with time. Their maximum values are T1 = 1800 Nand T2 = 180 N. If the maximum values of the belt tensions are applied only a few times during the life of the shaft, determine the required diameter of the shaft if the factor of safety is SF = 2.20.

FIGURE P4.40