Elastic Wave Scattering From an Interface Crack in a Layered Half Space Submerged in Water: Part II: Incident Plane Waves and Bounded Beams

[+] Author and Article Information
S. M. Gracewski

Department of Mechanical Engineering, University of Rochester, Rochester, NY 14627

D. B. Bogy

Department of Mechanical Engineering, University of California, Berkeley, Berkeley, CA 94720

J. Appl. Mech 53(2), 333-338 (Jun 01, 1986) (6 pages) doi:10.1115/1.3171761 History: Received November 15, 1984; Revised June 10, 1985; Online July 21, 2009


This is Part II of a two part paper which analyzes time harmonic elastic wave scattering by an interface crack in a layered half space submerged in water. The analytic solution was derived in Part I. Also numerical results for uniform harmonic normal or shear traction applied to the liquid-solid interface were presented. These were compared with previously published results as a check on the computer program used to obtain the numerical results. Here in Part II, additional numerical results are presented. Plane waves incident from the liquid onto the solid structure are first considered to gain insight into the response characteristics of the structure. The solution for an incident beam of Gaussian profile is then presented since this profile approximates the output of an ultrasonic transducer.

Copyright © 1986 by ASME
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