# quiz3 - Compute Poisson's ratio for this material if its...

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Question 1 1 out of 2 points A steel bar 100 mm long and having a square cross section 20 mm on an edge is pulled in tension with a load of 89,000 N , and experiences an elongation of 0.10 mm . Assuming that the deformation is entirely elastic, calculate the elastic modulus of the steel. Answer Selected Answer: 2.23 GPa Correct Answer: 223 GPa Response Feedback: Question 2 1 out of 2 points A cylindrical specimen of some alloy 8 mm in diameter is stressed elastically in tension. A force

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of 15,700 N produces a reduction in specimen diameter of 5 x 10 -3 mm.
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Unformatted text preview: Compute Poisson's ratio for this material if its modulus of elasticity is 140 GPa. Answer Selected Answer: 0.3 Correct Answer: 0.28 Response Feedback: • Question 3 1 out of 2 points Calculate the length of a metal cylinder while it is subjected to a tensile stress of 10,000 psi. You are given the following data: Original length = 1 in Original cross-sectional area = 0.1 in 2 Yield strength, ⌠ y = 9,000 psi Young’s modulus, E = 1,000,000 psi Answer Selected Answer: 1.01 in Correct Answer: Cannot be calculated Response Feedback:...
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## This document was uploaded on 10/26/2011 for the course ENGL 250 at Iowa State.

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quiz3 - Compute Poisson's ratio for this material if its...

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