Engineering, 25.10.2019 03:43, juliannabartra

A1045 hot-rolled steel tension test specimen has a diameter of 6.25 mm and a gage length of 21 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 4.80 mm. load change in length load change in length (kn) (mm) (kn) (mm) 0.00 0.00 13.89 0.29 3.38 0.01 16.03 0.61 6.77 0.02 18.41 1.04 10.15 0.03 21.23 1.80 13.54 0.04 22.07 2.26 13.66 0.05 22.24 2.78 13.75 0.06 21.43 2.78 13.86 0.08 20.03 3.83 13.89 0.09 19.60 3.94 13.89 0.10 19.35 4.00 13.89 0.14 19.09 4.06 13.89 0.17 18.82 4.12 18.63 fracture

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A1045 hot-rolled steel tension test specimen has a diameter of 6.25 mm and a gage length of 21 mm. i...