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RESEARCH PAPERS

Acoustoelastic Birefringences in Plastically Deformed Solids: Part II—Experiment

[+] Author and Article Information
Tsung-Tsong Wu, Masahiko Hirao, Yih-Hsing Pao

Department of Theoretical and Applied Mechanics, Cornell University, Ithaca, NY 14853

J. Appl. Mech 58(1), 18-23 (Mar 01, 1991) (6 pages) doi:10.1115/1.2897148 History: Received August 30, 1988; Revised November 14, 1989; Online March 31, 2008

Abstract

Ultrasonic experiments are preformed on a carbon steel specimen to determine the change of elastic wave speeds by plastic strains and residual stresses in the specimen. Under repeated uniaxial loadings, the acoustoelastic birefringence was found to be a linear function of plastic strains at various states of total unloading. In elastoplastic bendings, the acoustoelastic birefringes are dependent on the natural anisotropy, plastic strains, and residual stresses as predicted by the theory of Part I. The uniaxial residual stress and plastic strain in the beam are determined by acoustoelastic experiments.

Copyright © 1991 by The American Society of Mechanical Engineers
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