RESEARCH PAPERS: Papers on Production Engineering

An Analytical Study of Deformation Behavior of Porous Metals in Uniaxial Tension and Compression

[+] Author and Article Information
M. Oyane, S. Shima

Department of Mechanical Engineering, Kyoto University, Sakyo-ku, Kyoto, 606, Japan

T. Sato, Y. Tada

Department of Precision Mechanics, The University of Tokushima, Minami-Josanjima-cho, Tokushima, 770, Japan

J. Eng. Ind 107(2), 175-179 (May 01, 1985) (5 pages) doi:10.1115/1.3185982 History: Received June 24, 1983; Online July 30, 2009


On the basis of an upper-bound approach, deformation behavior of porous metals is considered. A model for porous metals is employed to describe a kinematically admissible velocity field for uniaxial deformation. By minimizing the total energy dissipation rate obtained from the velocity field, the yield strength, deformation behavior of porous metals, and also distortion of pores are evaluated. In the analysis, porosity, geometry of pores, and environmental hydrostatic pressure are taken into consideration. Calculated results are compared with experimental and/or other theoretical ones and show good agreement.

Copyright © 1985 by ASME
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