Shock-Wave Attenuation by Resilient Scatterers

[+] Author and Article Information
T. L. Geers

Lockheed Palo Alto Research Laboratory, Palo Alto, Calif.

J. Appl. Mech 42(2), 390-394 (Jun 01, 1975) (5 pages) doi:10.1115/1.3423587 History: Received August 01, 1974; Online July 12, 2010


The scattering of plane, transient acoustic waves by soft bodies is examined from the standpoint of shock-wave attenuation in fluids and solids. Asymptotic results in powers of scatterer stiffness are obtained that establish a stiffness range for which substantial and thorough attenuation is possible. This stiffness range lies between two extremes: one in which the scatterer acts as a rigid inclusion offering no pressure reduction benefits, and the other in which the scatterer suffers ultimate collapse in the manner of a cavity, with the concomitant generation of a large rebound pulse.

Copyright © 1975 by ASME
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