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TECHNICAL BRIEFS

Bolted Joint Interface Pressure for Thermal Contact Resistance

[+] Author and Article Information
T. L. Bradley, T. J. Lardner, B. B. Mikic

Department of Mechanical Engineering, Massachusetts Institute of Technology, Cambridge, Mass.

J. Appl. Mech 38(2), 542-545 (Jun 01, 1971) (4 pages) doi:10.1115/1.3408817 History: Received January 19, 1970; Online July 12, 2010

Abstract

One of the parameters needed to calculate the thermal contact resistance across a bolted joint is the interface pressure distribution between the plates of the joint [1, 2]. As part of a study [3] on thermal joint conductance, a three-dimensional photoelastic analysis using the stress freezing technique was used to predict the interface pressure. Nine bolted joint geometries were investigated using smooth flat plates of photoelastic material and equal thickness. The resulting interface pressure distributions which are presented are sufficiently accurate for the calculation of thermal contact resistance.

Copyright © 1971 by ASME
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