A cantilever beam AB is loaded by a couple M0 at its free end (see gure). The length of the beam is L = 2:0m, and the longitudinal normal strain at the top surface is 0:0012. The distance from the top surface of the beam to the neutral surface is 82.5mm. Calculate the radius of curvature , the curvature , and the vertical deflection at the end of the beam.