Behavior of Interface Pressure Distribution in a Single Bolt-Flange Assembly Subjected to Heat Flux

[+] Author and Article Information
S. Itoh

Tokyo Metropolitan Technical College, Tokyo, Japan

Y. Shiina

Hitachi Ltd., Yokohama City, Japan

Y. Ito

Tokyo Institute of Technology, Department of Mechanical Engineering for Production, 2-12-1 Ohokayama, Meguro-ku, Tokyo, Japan

J. Eng. Ind 114(2), 231-236 (May 01, 1992) (6 pages) doi:10.1115/1.2899776 History: Received October 01, 1989; Online April 08, 2008


This paper describes the thermal behavior of a single bolt-flange assembly, emphasizing the correlation between the thermal contact resistance, thermal deformation of joint surroundings and interface pressure distribution, i.e., mechanically-thermally closed loop effect. Through a series of experiments, the major findings are as follows: (1) The thermal behavior of the bolted joint is dependent upon the sinusoidal-like distribution of the interface pressure, for instance, it showing the additional heat flow in radial direction under the axial heat flux. (2) The bolted joint with ordinarily geometric specification is in thermal stability except for a short period after thermal loading.

Copyright © 1992 by The American Society of Mechanical Engineers
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