Question

5. A cylindrical specimen of aluminum having a diameter of 12.8 mm and a gauge length of 50.800 mm is pulled in tension. Use the load-elongation characteristics tabulated below to complete parts (a) through (f). Use SI unit system. Load Length 0 7330 15,100 23,100 30,400 34,400 38,400 41,300 44,800 46,200 47,300 47,500 46,100 44,800 42,600 36,400 lb 0 1650 3,400 5,200 6,850 7,750 8,650 9,300 10,100 10,400 10,650 10,700 10,400 10,100 9,600 mim 50.800 50.851 50.902 50.952 51.003 51.054 51.308 51.816 52.832 53.848 54.864 55.880 56.896 57.658 58.420 59.182 in. 2.000 2.002 2.004 2.006 2.008 2.010 2.020 2.040 2.080 2.120 2.160 2.200 2.240 2.270 2.300 2.330 8,200 Fracture (a) Plot the data as engineering stress versus 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 percent elongation? (f) Compute the modulus of resilience

Answer 1