Influence of stacking sequence on scattering characteristics of the fundamental anti-symmetric Lamb wave at through holes in composite laminates

Veidt, Martin and Ng, Ching-Tai (2011) Influence of stacking sequence on scattering characteristics of the fundamental anti-symmetric Lamb wave at through holes in composite laminates. Journal of the Acoustical Society of America, 129 3: 1280-1287. doi:10.1121/1.3533742

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Author Veidt, Martin
Ng, Ching-Tai
Title Influence of stacking sequence on scattering characteristics of the fundamental anti-symmetric Lamb wave at through holes in composite laminates
Journal name Journal of the Acoustical Society of America   Check publisher's open access policy
ISSN 0001-4966
1520-8524
Publication date 2011-03
Year available 2011
Sub-type Article (original research)
DOI 10.1121/1.3533742
Volume 129
Issue 3
Start page 1280
End page 1287
Total pages 8
Place of publication Melville, NY, United States
Publisher Acoustical Society of America
Collection year 2012
Language eng
Formatted abstract
This paper investigates the scattering characteristics of the fundamental anti-symmetric (A0) Lamb wave at through holes in composite laminates. Three-dimensional (3D) finite element (FE) simulations and experimental measurements are used to study the physical phenomenon. Unidirectional, bidirectional, and quasi-isotropic composite laminates are considered in the study. The influence of different hole diameter to wavelength aspect ratios and different stacking sequences on wave scattering characteristics are investigated. The results show that amplitudes and directivity distribution of the scattered Lamb wave depend on these parameters. In the case of quasi-isotropic composite laminates, the scattering directivity patterns are dominated by the fiber orientation of the outer layers and are quite different for composite laminates with the same number of laminae but different stacking sequence. The study provides improved physical insight into the scattering phenomena at through holes in composite laminates, which is essential to develop, validate, and optimize guided wave damage detection and characterization techniques.
Q-Index Code C1
Q-Index Status Confirmed Code
Institutional Status UQ

Document type: Journal Article
Sub-type: Article (original research)
Collections: School of Mechanical & Mining Engineering Publications
Official 2012 Collection
 
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Citation counts: TR Web of Science Citation Count  Cited 12 times in Thomson Reuters Web of Science Article | Citations
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