Elastic-Plastic Compaction of a Two-Dimensional Assemblage of Particles

[+] Author and Article Information
T. P. O’Donnell, P. S. Steif

Carnegie-Mellon University, Pittsburgh, PA 15213-3890

J. Eng. Mater. Technol 111(4), 404-408 (Oct 01, 1989) (5 pages) doi:10.1115/1.3226487 History: Received June 29, 1988; Revised January 09, 1989; Online September 15, 2009


The influence of pore shape on the porosity-pressure behavior of powders undergoing compaction is studied theoretically and numerically. Idealized two-dimensional models are used to compare the compression of circular pores, representing elevated temperature compaction, with cusp-shaped pores typically associated with cold compaction. An attempt is made to correlate porosity-pressure response with a logarithmic relation proven useful in the characterization of experimental compactions. A preliminary investigation on the effects of introducing a macroscopic shear into the compaction process is conducted.

Copyright © 1989 by ASME
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