The solid shaft shown in Figure P6.23 is subjected to a uniformly distributed torsional loading t = 7 kN-m/m and a concentrated external torque T D = 2,500 N-m. Determine the minimum required diameter...

The solid shaft shown in Figure P6.23 is subjected to a uniformly distributed torsional loading t = 7 kN-m/m and a concentrated external torque T_D
= 2,500 N-m. Determine the minimum required diameter of the shaft if the allowable shear stress for the material is 100 MPa. Use
 = 5 0.5 m, b = 5 1.2 m, and c = 5 0.3 m.