Articulating Pin Fixed Joints

Parametric study of the elastic stress distribution in pin-loaded lugs modelled in two and three dimensions and loaded in tension

“…This feature has also been noted in reference [6] and in calculations by Hou and Hills [10]. These authors commonly observed that only when moving from clearance to snug and then to interference pin fits were there noticeable effects produced on pin-load distribution; however, this distribution was not as sensitive to the level of clearance for a clearance-fitting pin [1,5,6,9].…”

“…It has also been observed in reference [5] and in boundary element analyses by Curtin et al [9] that pin fits changing from snug to clearance result in large variations in lug stresses. This feature has also been noted in reference [6] and in calculations by Hou and Hills [10].…”

“…Any greater value of H produced little change in the stress concentration factor. It has also been commonly observed through the work of Heywood [4], McConnell [5], and Grant et al [1], as well as Bismarck-Nasr and Pinto [6], that, for a lug width to lug-hole diameter ratio W ( 5 w/d) greater than 4, the stress concentration factor showed little change, with Heywood and McConnell stating smaller values of W for 'optimal conditions' and optimal strength respectively.…”

“…This is backed up by Meek's results [3]. McConnell [5] considers pin bending to be the direct cause of the effect of a maldistribution of load along the hole axis.…”