A 1-8 UNC low carbon steel bolt (diameter = 1.0 in, 8 threads/in) is currently used %3D for a certain application. It is preloaded to 75% of its proof strength (proof strength is 33,000 lb/in^2). However, this bolt is too large for the size of the components involved, and a higher-strength smaller bolt would be preferable (proof strength is 120,000 lb/in^2). Determine (a) the smallest nominal size of an alloy steel bolt that could be used to achieve the sa ne preload from the following standard UNC sizes used by the company: 1/4-20, 5/16-18, 3/8-16, 1/2-13, 5/8-11, or 3/4-10. (b) Compare the torque required to obtain the preload for the original 1-in bolt and the alloy steel bolt selected in part (a) if the torque coefficient in both cases = 0.20. %3D

A 1-8 UNC low carbon steel bolt (diameter = 1.0 in, 8 threads/in) is currently used %3D for a certain application. It is preloaded to 75% of its proof strength (proof strength is 33,000 lb/in^2). However, this bolt is too large for the size of the components involved, and a higher-strength smaller bolt would be preferable (proof strength is 120,000 lb/in^2). Determine (a) the smallest nominal size of an alloy steel bolt that could be used to achieve the sa ne preload from the following standard UNC sizes used by the company: 1/4-20, 5/16-18, 3/8-16, 1/2-13, 5/8-11, or 3/4-10. (b) Compare the torque required to obtain the preload for the original 1-in bolt and the alloy steel bolt selected in part (a) if the torque coefficient in both cases = 0.20. %3D

Elements Of Electromagnetics

7th Edition

ISBN:9780190698614

Author:Sadiku, Matthew N. O.

Publisher:Sadiku, Matthew N. O.

ChapterMA: Math Assessment

Section: Chapter Questions

Problem 1.1MA

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For AISI C1040, OQT 1000°F, ultimate strength is approximately __
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