Answer Happy

A tension test specimen has a diameter of 6.00 mm and a gage length of 25 mm. In a test to fracture, the stress and strain data below were obtained. Determine: (a) the modulus of elasticity. (b) the proportional limit. (c) the ultimate strength. (d) the yield strength (0.05% offset). (e) the yield strength (0.20% offset). (f) the fracture stress. (g) the true fracture stress if the final diameter of the specimen at the location of the fracture was 4.65 mm Also, it is required to expect the metal type according to the calculated material properties. Load Load (kN) 0.00 2.94 5.58 8.52 11.16 12.63 13.02 13.16 13.22 13.22 13.25 13.22 Change in Length (mm) 0.00 0.01 0.02 0.03 0.04 0.05 0.06 0.08 0.08 0.10 0.14 0.17 (KN) 13.22 16.15 18.50 20.27 20.56 20.67 20.72 20.61 20.27 19.97 19.68 19.09 18.72 Change in Length (mm) 0.29 0.61 1.04 1.80 2.26 2.78 3.36 3.83 3.94 4.00 4.06 4.12 fracture