The 2-m- long tube is made from an elastic-plastic material as shown. Determine the applie...

The 2-m- long tube is made from an elastic-plastic material as shown. Determine the applied torque T, which subjects the material of the tube’s outer edge to a shearing strain, of γmax = 0.008 rad. What would be the permanent angle of twist of the tube when the torque is removed? Sketch the residual stress distribution of the tube.