On the Decomposition of Deformation Into Elastic-Plastic Parts

[+] Author and Article Information
Li-jun Shen

Materials Science and Mechanics Research Center, Ningbo University, Ningbo, Zhenjiang 315211, China

J. Appl. Mech 65(4), 1059-1061 (Dec 01, 1998) (3 pages) doi:10.1115/1.2791901 History: Received November 11, 1997; Revised February 20, 1998; Online October 25, 2007


This paper analyzes the decomposition of finite deformation into elastic and plastic parts. The analysis argues that Lee’s multiplicative decomposition of the deformation gradient is not the real separation of the total deformation into elastic and plastic parts and that the Green strain cannot be decomposed into elastic and plastic parts. The paper also analyzes the decomposition of the velocity gradient and presents an exact elastic-plastic decomposition of deformation rate.

Copyright © 1998 by The American Society of Mechanical Engineers
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