A torque of 22 lb·in. is applied to one end of a 7-in.-long…
A torque of 22 lb·in. is applied to one end of a 7-in.-long composite shaft that consists of two polymer tubes. The outer tube has a polar moment of inertia of 0.0406 in.4 and a shear modulus of 180 ksi. The inner tube has a polar moment of inertia of 0.00779 in.4 and a shear modulus of 160 ksi. Determine the magnitude of the torque produced in the outer tube.