Journal Article


M. D. Gilchrist
L. J. Crane
M. J. Conry



ultrasonic waves crack detection metal nondestructive testing longitudinal waves ultrasonics rayleigh lamb waves two dimensional

Rayleigh-Lamb wave detection of two-dimensional defects in metal plates (2001)

Abstract Nondestructive testing of engineering structures is essential to ensure safety. Ultrasonic C-scanning uses waves ropagating normal to a plane surface. This is accurate, but slow for planar structures. Longitudinal waves would allow quicker testing of such structtwes. This paper considers the reflection of low to moderate frequency Rayleigh­ Lamb waves by a through width lozenge-shaped defect in an isotropic plate. A numerical method is used. It is shown that such longitudinal ultrasonic waves can be used with success to detect and locate structural defects if care is exercies in frequency selection.
Collections Ireland -> University College Dublin -> Mechanical & Materials Engineering Research Collection
Ireland -> University College Dublin -> College of Engineering & Architecture
Ireland -> University College Dublin -> School of Mechanical and Materials Engineering

Full list of authors on original publication

M. D. Gilchrist, L. J. Crane, M. J. Conry

Experts in our system

M. D. Gilchrist
University College Dublin
Total Publications: 172