27. An annealed-steel specimen has a 0.505 in. diameter and a 5.550 in. gage length. Maximum load is reached at 15,000 lbs and fracture occurs at 10,000 lbs. For this steel, E = 85 x 10' psi. (a) Draw a sketch of stress-strain diagram for a typical steel in tension? (b) What is the ultimate tensile strength (UTS)? (c) Why does fracture occur at a lower load than the maximum load? (d) What is the elongation when a tensile stress of 15,000 psi is applied?