A tensile bar was machined so that most of the gauge section had a diameter of 0.500 cm. One small part of the gauge section had a diameter 1% smaller (0.495 cm). Assume power-law hardening with n = 0.17. The bar was pulled until necking occurred.
A. Calculate the uniform elongation (%) away from the neck.
B. Compare this with the uniform elongation that would have been found if there had been no initial reduced section.