A Study on the Buckling of Rectangular Bellows Under Pressure Loads

[+] Author and Article Information
I. Nishiguchi, M. Tanaka

Department of Mechanical Systems Engineering, Kanagawa Institute of Technology, 1030 Shimoogino, Atsugi, Kanagawa 243-02, Japan

Y. Kaji, Y. Muto

Department of High Temperature Engineering, Japan Atomic Research Institute, Tokaimura, Naka-gun, Ibaraki 319-11, Japan

K. Koizumi

Department of ITER Project, Japan Atomic Research Institute, Nakamachi, Naka-gun, Ibaraki 311-02, Japan

J. Pressure Vessel Technol 118(4), 491-495 (Nov 01, 1996) (5 pages) doi:10.1115/1.2842219 History: Received September 14, 1995; Revised April 16, 1996; Online February 11, 2008


We have studied the buckling behavior of rectangular bellows under pressure loads. Our final objective is to establish the design guidelines for the rectangular bellows of an experimental fusion reactor, the ITER, the International Thermonuclear Experimental Reactor. Based on the numerical investigation by the FEM, we proposed a simplified method to evaluate the buckling pressure. The evaluation method of the buckling pressure for circular bellows can be found, for example, in the standards of the expansion joint manufacturers association in the U.S.A. (EJMA Standards). For rectangular bellows, however, investigation of the buckling behavior is limited, and EJMA does not provide a method for evaluating the buckling pressure. Therefore, we investigated the buckling behavior of rectangular bellows by the FEM and proposed a simplified evaluation method based on the half-pitch model.

Copyright © 1996 by The American Society of Mechanical Engineers
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