A vertical tie rod rigidly fixed at the top end consists of a steel rod of 2 m length and 20 mm diameter encased throughout in a brass tube of 20 mm internal diameter and 30 mm external diameter. The...

A vertical tie rod rigidly fixed at the top end consists of a steel rod of 2 m length and 20 mm diameter encased throughout in a brass tube of 20 mm internal diameter and 30 mm external diameter. The rod and the casing are fixed together at the ends. The compound bar is suddenly loaded in tension by a mass of 1530 kg falling freely through 3 mm before being arrested by the tie. Compute the maximum stresses in steel and brass. Take E, = 2 x lo5 MPa and Eb = 1 x lo5 MPa.