A solid circular steel shaft having an outside diameter of 1.50 in. is subjected to a pure torque of T = 8330 lb-in. The shear modulus of the steel is G = 12,000 ksi. Determine the maximum shear stress in the shaft. a. 7.64 ksi b. 12.57 ksi c. 13.20 ksi d. 10.33 ksi e. 15.86 ksi

A solid steel shaft will not twist through more than 3 degrees in a 6-m length when subjected to a torque of 12 KN*m. The modulus of rigidity of the steel shaft is 83 GPa. Determine; a) Diarneter of the shaft. (. b) Maximum shearing stress developed in the shaft.

The design specifications for the steel shaft AB require that the shaft acquire a strainenergy of 34 N.m as the 2.8 kN.m torque is applied. Using G = 72 GPa, determine(i) the largest inside diameter of the shaft that can be used,(ii) the corresponding maximum shearing stress in the shaft.

3. A solid circular shaft is 1.8 m and is made of steel with G = 70 GPa. When rotating at w = 70 rad/s, it transmits 28 kW of power from engine A to generator B. As the design engineer, you are asked to: (a) Determine the shaft's smallest allowable radius if the allowable shear stress is T allow = 80 MPa. (b) Determine the shaft's smallest allowable radius If the allowable angle of twist is allow = 0.1 rad (in other words, the shaft is restricted not to twist more than 0.1 rad). (c) If both conditions (a) and (b) are required simultaneously, which radius will you select as the allowable radius. (In other words which condition controls the situation)? Briefly explain your answer. (1 kW = 1000 Watts) B