A dump truck axle with a diameter of 1.61 in. and a length of 38 in. failed while transmitting a power of 505 hp and a torque of 5,260 lb-ft. At what speed was the axle spinning when it broke?

A baby-swing motor provides 0.34 W at 5,500 rpm to a shaft that has a diameter of 2.20 mm and a length of 13.4 mm. Determine the maximum shear stress in the shaft.

A dump truck axle with a diameter of 1.79 in. and a length of 37 in. failed while transmitting a power of 440 hp and a torque of 7,410 lb-ft. At what speed was the axle spinning when it broke?

A dump truck axle with a diameter of 1.682 in. and a length of 38.0 in. failed when the shear stress reached 82 ksi on the outer surface. The shear modulus of the steel is G = 11,900 ksi. Assuming the shaft did not yield prior to failure, determine the angle of twist of the axle when it failed.

A baby-swing motor provides 0.30 W at 6,000 rpm to a shaft that has a diameter of 2.34 mm and a length of 12.0 mm. Determine the maximum shear stress in the shaft.

A dump truck axle with a diameter of 1.614 in. and a length of 37.1 in. failed when the shear stress reached 74 ksi on the outer surface. The shear modulus of the steel is G = 11,500 ksi. Assuming the shaft did not yield prior to failure, determine the angle of twist of the axle when it failed.

The solid circular steel shaft of a screwdriver is subjected to torque T. The shaft has a diameter of 0.498 in. and a length of L = 3.75 in. For a factor of safety of 1.9 and a shearing yield strength of 19 ksi, determine the maximum torque T that can be applied to the shaft.

A torque of 23 lb·in. is applied to one end of a 5-in.-long composite shaft that consists of two polymer tubes. The outer tube has a polar moment of inertia of 0.0312 in.4 and a shear modulus of 180 ksi. The inner tube has a polar moment of inertia of 0.00667 in.4 and a shear modulus of 160 ksi. Determine the magnitude of the torque produced in the inner tube.

A steel [E = 30,500 ksi, G = 11,600 ksi] socket extension (2) has a diameter of 0.31 in. and a length of L = 2.3 in. It connects socket (3) to ratchet handle (1) which is 5.3 in. long. If a perpendicular force of 5.0 lb is applied to the end of the ratchet handle, determine the socket extension’s angle of twist.

A steel [E = 30,300 ksi, G = 11,800 ksi] socket extension (2) has a diameter of 0.49 in. and a length of L = 1.8 in. It connects socket (3) to ratchet handle (1) which is 7.3 in. long. If a perpendicular force of 14 lb is applied to the end of the ratchet handle, determine the socket extension’s angle of twist.