Determination of Shear Stress-Strain Curve From Torsion Tests for Loading-Unloading and Cyclic Loading

[+] Author and Article Information
Han-Chin Wu, Zhiyou Xu

Department of Civil & Environmental Engineering, The University of Iowa, Iowa City, IA

Paul T. Wang

Alcoa Laboratories, Alcoa Center, PA

J. Eng. Mater. Technol 119(1), 113-115 (Jan 01, 1997) (3 pages) doi:10.1115/1.2805963 History: Received June 03, 1995; Revised August 04, 1996; Online December 05, 2007


This paper discusses a method, based on Nadai’s solution, which can be used to determine the true (Cauchy) shear stress-strain curve of a material by means of torsion test of a solid shaft. The method is shown to be applicable to loading, unloading and cyclic loading. It is also applicable to fixed-end torsion of a solid shaft in the large shear strain range. A modified method has also been derived for the case of free-end torsion of a tubular specimen in the large strain range.

Copyright © 1997 by The American Society of Mechanical Engineers
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