The solid circular steel shaft of a screwdriver is subjected…

The solid circular steel shaft of a screwdriver is subjected to a pure torque of T = 20 lb·in. The shaft has a diameter of 0.228 in. and a length of L = 4.25 in. The shear modulus of the steel is G = 11,600 ksi. Determine the magnitude of the angle of twist of the shaft in degrees.

A dump truck axle with a diameter of 1.645 in. and a length…

A dump truck axle with a diameter of 1.645 in. and a length of 37.0 in. failed when the shear stress reached 83 ksi on the outer surface. The shear modulus of the steel is G = 11,600 ksi. Assuming the shaft did not yield prior to failure, determine the angle of twist of the axle when it failed.

A torque of 27 lb·in. is applied to one end of a 6-in.-long…

A torque of 27 lb·in. is applied to one end of a 6-in.-long composite shaft that consists of two polymer tubes. The outer tube has a polar moment of inertia of 0.0342 in.4 and a shear modulus of 185 ksi. The inner tube has a polar moment of inertia of 0.00563 in.4 and a shear modulus of 180 ksi. Determine the magnitude of the torque produced in the outer tube.