ISSN: 1945-7553
CODEN: JTEVAB
Page Count: 7

Time-Domain Ultrasonic NDE of the Wave Velocity of a Sub-Half-Wavelength Elastic Layer

Kinra, VK
Professor and associate director, and associate research professor, Center for Mechanics of Composites, Department of Aerospace Engineering, Texas A & M University, College Station, TX

Zhu, C
Professor and associate director, and associate research professor, Center for Mechanics of Composites, Department of Aerospace Engineering, Texas A & M University, College Station, TX

(Received 16 September 1991; accepted 21 January 1992)

Abstract

The purpose of this paper is to report a new technique for ultrasonic NDE of the wavespeed of a sub-half-wavelength layer (given its thickness) using only the time-domain information. The new technique was applied to aluminum plates with h λ ranging from 0.082 to 2.0 where h and λ are the plate thickness and the nominal wavelength, respectively. A satisfactory compatison between the measured values and the nominal value was observed.

Keywords:
ultrasonic, NDE, wavelength, wave velocity, wavespeed, time-domain, elastic layer

Paper ID: JTE11738J
DOI: 10.1520/JTE11738J
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