A tensile member of aluminum alloy 2024 - 0 had an original cross - sectional area of 4. 0 square inches. If the strain hardening exponent n = 0. 21 and the strength coefficient alpha 0 = 56, 000 psi, determine: the maximum load that can be carried by the member. the change in length of the member, if its original length was 4. 0 feet.