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3. (25pts) A cylindrical rod 120 mm long and having a diameter of 15.0 mm is to be deformed using a tensile load of 50,000

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3. (25pts) A cylindrical rod 120 mm long and having a diameter of 15.0 mm is to be deformed using a tensile load of 50,000 N. It must not experience either plastic deformation or a diameter reduction of more than 1.2*102 mm. Of the materials listed below, which one is the best candidate? Justify your choice based on your calculation results. Al alloy Brass alloy Steel alloy Copper Young's Modulus (GPa) Yield strength MPa) Poisson's ratio 70 250 0.33 100 345 0.36 205 0.27 110 210 0.34 550

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