The torsional assembly shown in Figure P6.76/77 consists of solid 2.50-in.-diameter aluminum [G = 4,000 ksi] segments (1) and (3) and a central solid 3.00-in.-diameter bronze [G = 6,500 ksi] segment...

The torsional assembly shown in Figure P6.76/77 consists of solid 2.50-in.-diameter aluminum [G = 4,000 ksi] segments (1) and (3) and a central solid 3.00-in.-diameter bronze [G = 6,500 ksi] segment (2). Concentrated torques of T_B
= T₀
and T_C
= 2T₀
are applied to the assembly at B and C, respectively. If the rotation angle at joint C must not exceed 3, determine

(a) the maximum magnitude of T₀
that may be applied to the assembly.

(b) the maximum shear stress magnitude in aluminum segments (1) and (3).

(c) the maximum shear stress magnitude in bronze segment (2).