The solid steel shaft carries the torques T1 = 750 N m and T2 = 1200 N m.
The solid steel shaft carries the torques T1 = 750 N m and T2 = 1200 N m. Using L1 = L2 = 2:5 m and G = 83 GPa, determine the smallest allowable diameter of the shaft if the shear stress is limited to 60 MPa and the angle of rotation of the free end is not to exceed 4°.