Answer Happy

1. A cylindrical specimen of aluminium having a diameter of 12.8 mm and a gauge length of 50.800 mm is pulled in tension. Use the load-elongation characteristics shown in the following table to complete parts a) through f) 46,200 53.848 47,300 54.864 46,100 56.896 44,800 57.658 42,600 58.420 36,400 59.182 50.952 52.832 L(N) 0 7,330 15,100 23,100 30,400 34,400 41,300 44,800 1 (mm) 50.800 50.851 50.902 51.003 51.054 51.816 L: load I: length Calculate: a) Plot the data as engineering stress vs engineering strain b) Compute the modulus of elasticity c) Determine the yield strength at a strain offset of 0.002 d) Determine the tensile strength of this alloy e) What is the approximate ductility, in prevent elongation? f) Compute the modulus of resilience