Shear Plastic Stress-Strain Relation Obtained From Torque-Twist Data

[+] Author and Article Information
S. B. Batdorf, Robert W. C. Ko

School of Engineering and Applied Science, University of California, Los Angeles, CA 90024

J. Eng. Mater. Technol 108(4), 354-357 (Oct 01, 1986) (4 pages) doi:10.1115/1.3225894 History: Received March 10, 1986; Online September 15, 2009


A standard technique for finding the shear stress-strain relation of a material employs a torsion test on a solid circular cylinder. It is shown that the exact solution is easily obtained as a correction to the sometimes-used quasielastic approximation. The solution is extended to the case of hollow cylinders. The analysis is shown to be applicable also to the case where a constant axial stress is present, and to a special case of planar isotropic materials.

Copyright © 1986 by ASME
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