The maximum bolt preload that can be applied is) Ibf.

Elements Of Electromagnetics
7th Edition
ISBN:9780190698614
Author:Sadiku, Matthew N. O.
Publisher:Sadiku, Matthew N. O.
ChapterMA: Math Assessment
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### Required Information

For a bolted assembly with six bolts, the stiffness of each bolt is \( k_b = 2 \) Mlb/in and the stiffness of the members is \( k_m = 13 \) Mlb/in per bolt. An external load of 80 kips is applied to the entire joint. Assume the load is equally distributed to all the bolts. It has been determined to use 1/2-in-13 UNC grade 8 bolts with rolled threads. It is desired to find the range of torque that a mechanic could apply to initially preload the bolts without expecting failure once the joint is loaded. Assume a torque coefficient of \( K = 0.2 \).

**NOTE:** This is a multi-part question. Once an answer is submitted, you will be unable to return to this part.

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**Question:**

Determine the maximum bolt preload that can be applied without exceeding the proof strength of the bolts once the load is applied.

The maximum bolt preload that can be applied is \(\_\_\_\_\_\_\) lbf.
Transcribed Image Text:### Required Information For a bolted assembly with six bolts, the stiffness of each bolt is \( k_b = 2 \) Mlb/in and the stiffness of the members is \( k_m = 13 \) Mlb/in per bolt. An external load of 80 kips is applied to the entire joint. Assume the load is equally distributed to all the bolts. It has been determined to use 1/2-in-13 UNC grade 8 bolts with rolled threads. It is desired to find the range of torque that a mechanic could apply to initially preload the bolts without expecting failure once the joint is loaded. Assume a torque coefficient of \( K = 0.2 \). **NOTE:** This is a multi-part question. Once an answer is submitted, you will be unable to return to this part. --- **Question:** Determine the maximum bolt preload that can be applied without exceeding the proof strength of the bolts once the load is applied. The maximum bolt preload that can be applied is \(\_\_\_\_\_\_\) lbf.
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