Identification of delamination position in cross-ply laminated composite beams using S0 Lamb mode
Hu, Ning, Shimomukai, Takahito, Yan, Cheng, & Fukunaga, Hisao (2008) Identification of delamination position in cross-ply laminated composite beams using S0 Lamb mode. Composites Science and Technology, 68(6), pp. 1548-1554.
In this work, a Lamb wave based technique has been developed for delamination detection in cross-ply laminated beams. By measuring the propagation speed of S0 Lamb mode and the traveling time of a signal reflected from a delamination site, the location of the delamination can be identified. It has been also confirmed by the experiment that the location of a delamination can be accurately determined by only using the data collected from the sensors in a defect-containing beam, without referring to the baseline signals. Finally, to gain a better understanding of the complex interaction between a Lamb wave and a long delamination, numerical simulations have been carried out using finite element method (FEM). The signal modes generated at the boundaries of the delamination have been analyzed.
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|Item Type:||Journal Article|
|Keywords:||Non, destructive testing, Polymer–matrix composites, Delamination, Finite element analysis, Smart materials|
|Subjects:||Australian and New Zealand Standard Research Classification > ENGINEERING (090000) > MATERIALS ENGINEERING (091200) > Composite and Hybrid Materials (091202)|
|Divisions:||Past > QUT Faculties & Divisions > Faculty of Built Environment and Engineering|
|Copyright Owner:||Copyright 2008 Elsevier|
|Copyright Statement:||Reproduced in accordance with the copyright policy of the publisher.|
|Deposited On:||02 Jun 2008|
|Last Modified:||29 Feb 2012 13:47|
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