The composite shaft shown in Figure P6.65/66 consists of a bronze sleeve (1) securely bonded to an inner steel core (2). The bronze sleeve has an outside diameter of 35 mm, an inside diameter of 25...

The composite shaft shown in Figure P6.65/66 consists of a bronze sleeve (1) securely bonded to an inner steel core (2). The bronze sleeve has an outside diameter of 35 mm, an inside diameter of 25 mm, and a shear modulus of G₁
= 45 GPa. The solid steel core has a diameter of 25 mm and a shear modulus of G₂
= 80 GPa. The composite shaft is subjected to a torque of T = 900 N-m. Determine

(a) the maximum shear stresses in the bronze sleeve and the steel core.

(b) the rotation angle of end B relative to end A.