Elastic-Plastic Design of Rectangular Pressure Tubing

[+] Author and Article Information
R. D. Gauthier

The Dow Chemical Company, Denver, Colo.

E. E. Weibel

Department of Mechanical Engineering, University of Colorado, Boulder, Colo.

J. Appl. Mech 28(4), 529-534 (Dec 01, 1961) (6 pages) doi:10.1115/1.3641778 History: Received June 15, 1960; Revised January 26, 1961; Online September 16, 2011


Elastic-plastic design permits the most effective use of the strength of the rectangular tube section. The condition of failure for a tube of perfectly elastic-plastic material is analyzed, and a formula is derived from which the limit load can be computed directly, A procedure is developed for determining by the area-moment method the wall deflection at any load from a bending-moment diagram modified to account for reduced rigidity. The total deflections thus found are plotted against the various loads. This theoretical load-deflection curve then becomes the basis for design.

Copyright © 1961 by ASME
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