A bolted joint is widely used for the structures and machines subjected to thermal load, such as pressure vessels, internal combustion engines, brake disks, etc. In order to accurately evaluate the thermal stresses thus produced, the effect of thermal contact resistance at the interface and the heat flow through small gaps, which exist around the objective bolted joint, must be taken into account. In this paper, a numerical approach is proposed to solve the mechanical and thermal behaviors of bolted joints with high accuracy and computation efficiency, where empirical equations for thermal contact coefficient and apparent thermal contact coefficient are incorporated into commercial engineering software. By conducting systematic three-dimensional finite element analyses, it has been quantitatively elucidated how the supplied heat flows through each part of a bolted joint and how the axial bolt stress and bolt bending stress vary with time. It is concluded that bolted joints made of the materials with low thermal conductivity show specific heat flow patterns around the bolted joint and generate a large amount of variations in both axial bolt stress and bolt bending stress.
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e-mail: fukuoka@maritime.kobe-u.ac.jp
e-mail: nomura@maritime.kobe-u.ac.jp
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December 2009
Research Papers
Analysis of Heat Flow Around Bolted Joints and Variations of Axial Bolt Force
Toshimichi Fukuoka,
Toshimichi Fukuoka
Professor
Graduate School of Maritime Sciences,
e-mail: fukuoka@maritime.kobe-u.ac.jp
Kobe University
, Fukaeminami 5-1-1, Higashinada, Kobe, Hyogo 658-0022, Japan
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Masataka Nomura,
Masataka Nomura
Associate Professor
Graduate School of Maritime Sciences,
e-mail: nomura@maritime.kobe-u.ac.jp
Kobe University
, Fukaeminami 5-1-1, Higashinada, Kobe, Hyogo 658-0022, Japan
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Keiichi Shino
Keiichi Shino
Graduate Student
Graduate School of Maritime Sciences,
Kobe University
, Fukaeminami 5-1-1, Higashinada, Kobe, Hyogo 658-0022, Japan
Search for other works by this author on:
Toshimichi Fukuoka
Professor
Graduate School of Maritime Sciences,
Kobe University
, Fukaeminami 5-1-1, Higashinada, Kobe, Hyogo 658-0022, Japane-mail: fukuoka@maritime.kobe-u.ac.jp
Masataka Nomura
Associate Professor
Graduate School of Maritime Sciences,
Kobe University
, Fukaeminami 5-1-1, Higashinada, Kobe, Hyogo 658-0022, Japane-mail: nomura@maritime.kobe-u.ac.jp
Keiichi Shino
Graduate Student
Graduate School of Maritime Sciences,
Kobe University
, Fukaeminami 5-1-1, Higashinada, Kobe, Hyogo 658-0022, JapanJ. Pressure Vessel Technol. Dec 2009, 131(6): 061203 (7 pages)
Published Online: October 8, 2009
Article history
Received:
July 2, 2008
Revised:
July 27, 2009
Published:
October 8, 2009
Citation
Fukuoka, T., Nomura, M., and Shino, K. (October 8, 2009). "Analysis of Heat Flow Around Bolted Joints and Variations of Axial Bolt Force." ASME. J. Pressure Vessel Technol. December 2009; 131(6): 061203. https://doi.org/10.1115/1.4000198
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