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Unformatted text preview: sm value. The and so crack C is the least likely to fail. Question 2 2 out of 2 points A specimen of a 4340 steel alloy having a plane strain fracture toughness of 45 MPa m. It is known that the largest surface crack in this specimen is 0.75 mm long. What is the maximum stress this specimen can tolerate without fracturing. Assume that the parameter Y has a value of 1.0. Answer Selected Answer: 927 MPa Correct Answer: 927 MPa Respon se Feedbac k: Correct You must calculate the critical stress,...
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This document was uploaded on 10/26/2011 for the course ENGL 250 at Iowa State.
 Fall '06
 COREY

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