Compound Sections_Problem 05

Three bars made of copper, zinc and aluminium are of equal length and have c/s area 500, 700 and 1000 mm^2 respectively. They are rigidly connected at their ends. If this compound member is subjected to a longitudinal pull of 250 KN. Estimate the proportional load carried on each rod and the induced stresses.
Take, Ec = 1.3X10^5 N/mm^2, Ez = 1.0X10^5 N/mm^2, Ea = 0.8X10^5 N/mm^2