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11. [14 pts] This problem uses the stress-strain diagram (located on the back of the equation sheet) for a 1018steel alloy that was first austenized at 950°C then water quenched

and tempered for an hour at 300°C.First, determine five properties of this material: the elastic modulus, E; the yield strength, Oy, of the material using the 0.2% strain offset method; the ultimate tensile strength, OUTS; the proportional (or elastic) limit, oeli the ductility as measured in percent elongation (ignore elastic strain recovery) Next, if a specimen of this steel alloy specimen with a diameter of 30 mm is subjected to a 142 kN tensile load, determine the amount of elastic strain experienced. If the specimen was originally 800 mm long, what will be the final length after applying the load?

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