Abstract
The dynamic forces which occur in structures whose jointed parts may slide during dynamic loading are associated with energy dissipation. The high-strength friction grip bolted joint (HSFGBJ) is a structural element which under certain circumstances may dissipate a large amount of vibrational energy. This energy is an increasing function of the frictional force and of the magnitude of slip of the joint. However, in a joint with a relatively large number of bolts, the amount of slip cannot be large, as the bolt holes are not much larger than the bolt diameter. Thus, some bolts of the joint may be sheared at the beginning of the full-slip stage of loading. In this paper, mathematical equations for the frictional force and slip in both stages of loading—partial slip and full slip—are established, and the dissipation of energy is evaluated. It is shown that if the joint is designed so that the magnitude of slip is at the border partial slip/full slip, the joint may dissipate a large amount of vibrational energy.
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Groper, M. Microslip and macroslip in bolted joints. Experimental Mechanics 25, 171–174 (1985). https://doi.org/10.1007/BF02328808
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DOI: https://doi.org/10.1007/BF02328808