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RESEARCH PAPERS

The Elastic-Plastic Response of Thin-Walled Tubes Under Combined Axial and Torsional Loads: Part I—Monotonic Loading

[+] Author and Article Information
W. Jiang

Mechanical Engineering Department, Florida International University, Miami, FL 33199

J. Pressure Vessel Technol 115(3), 283-290 (Aug 01, 1993) (8 pages) doi:10.1115/1.2929529 History: Received March 31, 1992; Revised April 16, 1993; Online June 17, 2008

Abstract

This paper investigates the elastic-plastic response of thin-walled tubes subjected to combined axial and torsional loads. The kinematic hardening model is used and exact closed-form solutions are obtained for linear loading paths. The characteristics of the stress-strain relationships are discussed and the corresponding movements of the yield center are illustrated. The response of the material under nonproportional loading is proved to be path-dependent, and the hardening behavior is shown to be different from that under proportional loading. The investigation then shows that such a difference will finally disappear when the stresses tend to infinity.

Copyright © 1993 by The American Society of Mechanical Engineers
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