Abstract
This paper describes a numerical study of the stress distribution in pin-loaded lugs. The effects of : (i) the ratio of lug width ( w) to hole diameter ( d), (ii) the ratio of the distance of the hole centre from the free end of the lug ( h) to hole diameter ( d), and (iii) the pin interference/clearance, on the magnitude and position of the maximum circumferential stress around the hole in the lug are established and discussed. Pin fit is shown to be a particularly important detail and the beneficial effects of an interference fit are shown to be considerable. It is also shown that for ratios w/d greater than 4 and h/d greater than 3 there is little variation in the maximum circumferential stress for a given applied load.
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