Elements Of Electromagnetics
Elements Of Electromagnetics
7th Edition
ISBN: 9780190698614
Author: Sadiku, Matthew N. O.
Publisher: Oxford University Press
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The bracket shown in the figure is bolted a ceiling beam to support a fluctuating vertical load imposed on it. The bolts are -in coarse-thread SAE grade 8, tightened to recommended preload for nonpermanent assembly. The stiffnesses have already been computed and are kp=4 Mlb/in and km = 16 Mlb/in. Laad line F. Steady stress (a) Assuming that the bolts, rather than the welds, govern the strength of this design, determine the safe repeated load that can be imposed on this assembly using the Goodman criterion with the load line in the Figure and a fatigue design factor of 2. (b) Compute the static load factors based on the load found in part (a). (ie. Yielding factor of safety, Load factor of safety and factor against joint separation)
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Transcribed Image Text:The bracket shown in the figure is bolted a ceiling beam to support a fluctuating vertical load imposed on it. The bolts are -in coarse-thread SAE grade 8, tightened to recommended preload for nonpermanent assembly. The stiffnesses have already been computed and are kp=4 Mlb/in and km = 16 Mlb/in. Laad line F. Steady stress (a) Assuming that the bolts, rather than the welds, govern the strength of this design, determine the safe repeated load that can be imposed on this assembly using the Goodman criterion with the load line in the Figure and a fatigue design factor of 2. (b) Compute the static load factors based on the load found in part (a). (ie. Yielding factor of safety, Load factor of safety and factor against joint separation)
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