A tensile test specimen of an aluminum alloy has a diameter of 20.0 mm and a gage length of 100 mm. In the tensile test, the axial load was found to remain proportional to the elongation up to an axial load of 75.4 kN. At that load the diameter of the tensile test specimen was 19.978 mm and the elongation over the gage length was 0.330 mm. Determine the modulus of elasticity E, Poisson’s ratio V, and the proportional limit of the aluminum alloy.
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