Behavior of a Tapered Hub Flange With a Bolted Flat Cover in Transient Temperature Field

[+] Author and Article Information
T. Sawa

Department of Mechanical Engineering, Yamanashi University, 4-3-11 Takeda, Kofu, Yamanashi, 400 Japan

T. Hirose

Kobe Steel Co. Ltd., Japan

Y. Nakagomi

Department of Mechanical Engineering, Yamanashi University, Yamanashi, 400 Japan

J. Pressure Vessel Technol 118(1), 115-120 (Feb 01, 1996) (6 pages) doi:10.1115/1.2842153 History: Received January 04, 1994; Revised June 12, 1995; Online February 11, 2008


An experimental and analytical study was made on a bolted connection subjected to thermal loading. The connection consists of an aluminum alloy tapered hub flange and a flat cover, including a gasket fastened by steel bolts and nuts. Temperature distribution in the connection was measured with thermocouples, and the axial bolt force, the maximum bolt stress, and the hub stress were measured by strain gages under a thermal condition that theinner surface of the flanges was heated and the outer surfaces of the flanges and the cover were held at room temperature. Finite difference analysis was made to obtain the temperature distributions in the connection due to a transient thermal condition. This paper demonstrates the method for obtaining an increment in axial bolt force and the maximum bolt stress. In all cases, the analytical results were fairly consistent with the experimental results.

Copyright © 1996 by The American Society of Mechanical Engineers
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