On the Calculations of the Stored Energy of Cold Work

[+] Author and Article Information
N. Aravas

Department of Mechanical Engineering and Applied Mechanics, University of Pennsylvania, Philadelphia, PA 19104

K-S. Kim

Division of Engineering, Brown University, Providence, RI 02912

F. A. Leckie

Department of Mechanical Engineering, University of California, Santa Barbara, CA 93106

J. Eng. Mater. Technol 112(4), 465-470 (Oct 01, 1990) (6 pages) doi:10.1115/1.2903358 History: Received July 05, 1989; Revised December 01, 1989; Online April 29, 2008


When a metal deforms plastically, most of the mechanical energy expended in the deformation process is converted into heat and the remainder is stored in the material. A method for the calculation of the stored energy from an experimentally determined load-displacement curve of an elastic-plastic structure is presented. The method is applied to the problem of simple tension of a polycrystalline metal and a simple technique for the calculation of the stored energy from the uniaxial stress-strain curve is presented.

Copyright © 1990 by The American Society of Mechanical Engineers
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