Asymptotic Viscoelastic Rays in a Thick Plate

[+] Author and Article Information
R. L. Weaver

Department of Theoretical and Applied Mechanics, University of Illinois at Urbana-Champaign, Urbana, IL 61801

W. Sachse

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

J. Appl. Mech 61(2), 429-433 (Jun 01, 1994) (5 pages) doi:10.1115/1.2901462 History: Received June 30, 1988; Revised March 25, 1993; Online March 31, 2008


The high-frequency behavior of generalized ray arrivals is discussed with a view towards material characterization by means of measurements of the dispersion of ultrasonic pulses. The effect of beam spreading is treated exactly. Signal processing algorithms are developed. They are demonstrated with a synthetic signal obtained in an elastic material.

Copyright © 1994 by The American Society of Mechanical Engineers
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