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TECHNICAL PAPERS

Finite Element Simulation of the Tightening Process of Bolted Joint With a Bolt Heater

[+] Author and Article Information
Toshimichi Fukuoka

Department of Ocean Electro-Mechanical Engineering, Kobe University of Mercantile Marine, Higashinada, Kobe, Japane-mail: fukuoka@cc.kshosen.ac.jp

Quantuo Xu

Engineous Japan, Inc., Kohoku-ku, Yokohama, Japane-mail: hsu@engineous.co.jp

J. Pressure Vessel Technol 124(4), 457-464 (Nov 08, 2002) (8 pages) doi:10.1115/1.1493205 History: Received July 13, 2001; Revised May 20, 2002; Online November 08, 2002
Copyright © 2002 by ASME
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References

Figures

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Tightening process of a bolted joint with a bolt heater—(a) initial condition, (b) elongation due to heating, (c) nut rundown, (d) completion of tightening
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Thermal contact resistances to be considered in the (a) heating, and (b) cooling processes
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Finite element model and temperature distributions—(a) finite element model (M36, Lf/d=10), (b) temperature distribution
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Variations of temperatures with time in the tightening process
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Effects of nut rundown torque on the resulting axial bolt force
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Variations of axial bolt force with time in the tightening process
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Relationships between axial bolt force and heating time
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Relationships between axial bolt force and temperature increase of exposed bolt thread
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Relationships between axial bolt force and bolt elongation
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A bolt heater inserted into a large bolt to be tightened

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