Experimental Investigation of Size Effects of FCC Polycrystal by Shear Banding

[+] Author and Article Information
Osamu Watanabe

Institute of Engineering Mechanics, University of Tsukuba, Tsukuba, Ibaraki 305-8573, Japan

Takayuki Kurata

Research Center, Bridgestone Co., Kodaira, Tokyo 187-8531, Japan

J. Eng. Mater. Technol 121(2), 156-161 (Apr 01, 1999) (6 pages) doi:10.1115/1.2812361 History: Received June 29, 1998; Revised November 10, 1998; Online November 27, 2007


Several plasticity phenomena display a size effect where the smaller the size is the stronger its response. This effect relates to the plastic gradients, appearing in plastically inhomogeneous material. The present paper describes results of an experimental meso-scale study using the specimens having rectangular cross section made of FCC polycrystal of pure Aluminum and OFHC Copper under the tensile or compressive loading. Experimental measurements are carried out to investigate thickness effect and grain size effect in connection with size effect, and the internal mechanism of plastic flow in the specimens is also discussed.

Copyright © 1999 by The American Society of Mechanical Engineers
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