EFFICIENT USE OF LAMB MODES FOR DETECTING DEFECTS IN LARGE PLATES

Authors
GHOSH T KUNDU T KARPUR P
Citation
T. Ghosh et al., EFFICIENT USE OF LAMB MODES FOR DETECTING DEFECTS IN LARGE PLATES, Ultrasonics, 36(7), 1998, pp. 791-801
Citations number
13
Categorie Soggetti
Acoustics,"Radiology,Nuclear Medicine & Medical Imaging
Journal title
Ultrasonics → ACNP
ISSN journal
0041624X
Volume
36
Issue
7
Year of publication
1998
Pages
791 - 801
Database
ISI
SICI code
0041-624X(1998)36:7<791:EUOLMF>2.0.ZU;2-O
Abstract
In this paper, Lamb wave propagation in large plates and its use in in ternal defect detection have been studied. The Lamb modes which are mo st efficient for detecting different types of internal defects are ide ntified. Stress fields inside the plate for different Lamb modes are c omputed. From these stress plots one can conclude which Lamb mode shou ld be efficient for detecting which type of material defect. Theoretic al predictions are experimentally verified. (C) 1998 Elsevier Science B.V. All rights reserved.