Strain Hardening Response of Sintered Porous Iron Tubes With Various Initial Porosities Under Combined Tension and Torsion

[+] Author and Article Information
K. T. Kim, Y. S. Kwon

Department of Mechanical Engineering, Pohang Institute of Science and Technology, Pohang 790-600, Korea

J. Eng. Mater. Technol 114(2), 213-217 (Apr 01, 1992) (5 pages) doi:10.1115/1.2904164 History: Received January 22, 1991; Revised October 27, 1991; Online April 29, 2008


Elastic-plastic strain hardening responses of sintered porous iron are investigated. By using the yield function of Kim, two sets of constitutive equations are obtained from the constitutive theories by Kim and Suh and by Gurson. Theoretical predictions from these constitutive equations are compared with experimental data for sintered porous iron tubes with various initial porosities under combined tension and torsion.

Copyright © 1992 by The American Society of Mechanical Engineers
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