Question-2a (4) A tensile test was performed on a 0.2% C mild steel, giving the following (engineering) stress-strain da

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Question 2a 4 A Tensile Test Was Performed On A 0 2 C Mild Steel Giving The Following Engineering Stress Strain Da 1 (38.13 KiB) Viewed 52 times

Question-2a (4) A tensile test was performed on a 0.2% C mild steel, giving the following (engineering) stress-strain data. Determine the values of (a) elastic modulus, (b) ultimate tensile strength, (e) fracture strength, and (d) ductility of the alloy. Engineering Engineering Engineering Engineering Stress Strain Stress Strain (ksi) (in./in.) (ksi) (in./in.) 0 30 55 60 68 72 74 75 0 0.001 0.002 0.005 0.010 0.020 0.040 0.060 76 75 73 69 65 56 51 0.08 0.10 0.12 0.14 0.16 0.18 0.19 (Fracture) Question-2b (6) A 0.505-in.-diameter aluminum alloy test bar is subjected to a load of 25,000 lb. If the diameter of the bar is 0.490 in. at this load, determine (a) the engineering stress and strain and (b) the true stress and strain.