The tightening operation with a bolt heater has advantages surpassing those of other tightening methods. Currently, a bolt heater is mainly applied to tighten huge bolts that cannot be clamped by other means, and the tightening operation is usually supported by the expertise of skilled workers. In this paper, a numerical approach is presented to aim at a broader use of bolt heater technique by elucidating the tightening mechanism. The effects of thermal contact resistance existing around a bolted joint are taken into account for a better accuracy in the numerical analyses. Based on the numerical results obtained, a series guideline to help the tightening operation when performed by less skilled workers is proposed.
Finite Element Simulation of the Tightening Process of Bolted Joint With a Bolt Heater
Contributed by the Pressure Vessels and Piping Division and presented at the Pressure Vessels and Piping Conference, Seattle, Washington, July 23–27, 2000, of THE AMERICAN SOCIETY OF MECHANICAL ENGINEERS. Manuscript received by the PVP Division, July 13, 2001; revised manuscript received May 20, 2002. Associate Editor: S. Y. Zamrik.
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Fukuoka, T., and Xu, Q. (November 8, 2002). "Finite Element Simulation of the Tightening Process of Bolted Joint With a Bolt Heater ." ASME. J. Pressure Vessel Technol. November 2002; 124(4): 457–464. https://doi.org/10.1115/1.1493205
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