A ½ inch nominal major diameter (d = 0.5 [in.]) course series (UNC) bolt is to be used to secure a joint consisting of steel (Es = 30 [Mpsi]) and grey cast iron (Eci = 14.5 [Mpsi]) each of equal thickness (t = 1.25 [in. ]). Narrow washers (Table A-32: 1/2 N) are to be use with both the regular hexagonal bolt and nut (Table A-29 and A-31). The preload (F) on the bolt should be appropriate for a permanent joint. For an externally applied load of P = 23,500 [lb], a safety factor of at least 2.5 is required for both static yielding and joint separation failure criterion (i.e., n, and no ≥ 2.5). a) Determine the appropriate total length of the bolt (L, recall ideally 1-2 threads should protrude from nut) and the threaded length (LT). (Table 8-7 will be useful) b) Determine the minimum SAE grade for the bolt/nut that will satisfy the given failure criteria.

A ½ inch nominal major diameter (d = 0.5 [in.]) course series (UNC) bolt is to be used to secure a joint consisting of steel (Es = 30 [Mpsi]) and grey cast iron (Eci = 14.5 [Mpsi]) each of equal thickness (t = 1.25 [in. ]). Narrow washers (Table A-32: 1/2 N) are to be use with both the regular hexagonal bolt and nut (Table A-29 and A-31). The preload (F) on the bolt should be appropriate for a permanent joint. For an externally applied load of P = 23,500 [lb], a safety factor of at least 2.5 is required for both static yielding and joint separation failure criterion (i.e., n, and no ≥ 2.5). a) Determine the appropriate total length of the bolt (L, recall ideally 1-2 threads should protrude from nut) and the threaded length (LT). (Table 8-7 will be useful) b) Determine the minimum SAE grade for the bolt/nut that will satisfy the given failure criteria.

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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