Damage detection in glare plate-like structures

S. C. Rosalie, W. K. Chiu

Research output: Chapter in Book/Report/Conference proceedingChapter (Book)Researchpeer-review


With the development of new technology and use oflightweight material such as composite laminates, new methods must be developed for in-situ structural health monitoring of these materials. In this paper, a numerical study of a new method for the detection of delamination present in Glare plate-like structures is introduced. The method is based on the change in the group velocity of Lamb waves with frequencythickness product as the determinant parameter for the detection of delamination. The generation of selective Lamb mode was numerically simulated using a finite element method and the finite element analysis was based on the transmitted signal. The numerical results were validated against analytical predictions and indicated good agreement. It was found that the method enabled the detection of delamination in the Glare specimens, showing an increase in group velocity when delamination occurs.

Original languageEnglish
Title of host publicationComposites Technologies For 2020
PublisherWoodhead Publishing Limited
Number of pages7
ISBN (Print)9781855738317
Publication statusPublished - 1 Jan 2004

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