The shaft is made of A-36 steel, has a diameter of 95 mm, and is fixed at B while A is loose and can rotate 0.005 rad before becoming fixed.   A) When the torques are applied to C and D, determine the maximum shear stress in region AC of the shaft. Express your answer to three significant figures and include the appropriate units.   B) When the torques are applied to C and D, determine the maximum shear stress in region CD of the shaft. Express your answer to three significant figures and include the appropriate units.

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Torsion

In mechanical engineering, torque, torsion, and twisting moment are three of the most important concepts which have different meanings. Torque is the consequence of a moment of a force that produces an angular acceleration in a body or induces rotational kinetic energy in a body. For instance, in an automobile, the power transmission shaft is a body that is always under rotation due to the external torque acting on it, this torque is created by the engine.