e. Within the above assembly of complex loading system, another steel tube of length 3 m has an external diameter of 8 mm and an internal diameter of 5 mm. The maximum shear stress in the tube is 9.5 GPa, when one end fixed and the other is being rotated. You have been tasked to work-out the angle of twist/ angular deflection of the tube. Assume the shear modulus of the material to be 79 GPa.