An Improved Flange Bolt-Up Procedure Using Experimentally Determined Elastic Interaction Coefficients

[+] Author and Article Information
G. D. Bibel, R. M. Ezell

Department of Mechanical Engineering, The University of Akron, Akron, OH 44325-3903

J. Pressure Vessel Technol 114(4), 439-443 (Nov 01, 1992) (5 pages) doi:10.1115/1.2929252 History: Received October 28, 1991; Revised May 20, 1992; Online June 17, 2008


Uniform bolt stress (±2 percent) was obtained in a one-pass, tension-controlled, bolt-up procedure. This was done by experimentally determining elastic interaction coefficients. The coefficients were then used to solve for the required initial bolt loads that gave the desired final stresses. The procedure worked on two similar pairs of 16-in. class 300 flanges. Each flange set had different interaction, apparently due to surface gaps and misalignment. The procedure was repeated several times with a flat sheet gasket and without a gasket. The procedure and experimental results are described in detail.

Copyright © 1992 by The American Society of Mechanical Engineers
Topics: Flanges , Stress , Gaskets , Tension
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