A round tube (outside diameter ¼ 25 mm, wall thickness ¼ 2.5 mm, and length ¼ 0.5 m) is made by wrapping continuous AS-4 carbon fiberreinforced epoxy layers, all in the hoop direction. The fiber volume fraction is 60%. 1. Determine the change in length and diameter of the tube if it is subjected to an axial tensile load of 2 kN 2. Determine the maximum axial tensile load that can be applied on the tube? 3. Suppose the tube is used in a torsional application. What will be its torsional stiffness (torque per unit angle of twist)? The modulus, tensile strength, and Poisson’s ratio of the epoxy matrix are 5 GPa, 90 MPa, and 0.34, respectively.