Remote monitoring of bond line defects between a composite panel and a stiffener using distributed piezoelectric sensors
Structural health monitoring (SHM) using ultrasonic guided waves has proven to be attractive for the identification of damage in composite plate-like structures, due to its realization of both significant propagation distances and reasonable sensitivity to defects. However, topographical features su...
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sg-ntu-dr.10356-1402632020-05-27T09:29:02Z Remote monitoring of bond line defects between a composite panel and a stiffener using distributed piezoelectric sensors Yu, Xudong Fan, Zheng Puliyakote, Sreedhar Castaings, Michel School of Mechanical and Aerospace Engineering Engineering::Mechanical engineering SHM Feature Guided Waves Structural health monitoring (SHM) using ultrasonic guided waves has proven to be attractive for the identification of damage in composite plate-like structures, due to its realization of both significant propagation distances and reasonable sensitivity to defects. However, topographical features such as bends, lap joints, and bonded stiffeners are often encountered in these structures, and they are susceptible to various types of defects as a consequence of stress concentration and cyclic loading during the service life. Therefore, the health condition of such features has to be assessed effectively to ensure the safe operation of the entire structure. This paper proposes a novel feature guided wave (FGW) based SHM strategy, in which proper FGWs are exploited as a screening tool to rapidly interrogate the representative stiffener-adhesive bond-composite skin assembly. An array of sensors permanently attached to the vicinity of the feature is used to capture scattered waves from the localized damage occurring in the bond line. This technique is combined with an imaging approach, and the damage reconstruction is achieved by the synthetic focusing algorithm using these scattered signals. The proposed SHM scheme is implemented in both the 3D finite element simulation and the experiment, and the results are in good agreement, demonstrating the feasibility of such SHM strategy. NRF (Natl Research Foundation, S’pore) 2020-05-27T09:29:02Z 2020-05-27T09:29:02Z 2018 Journal Article Yu, X., Fan, Z., Puliyakote, S., & Castaings, M. (2018). Remote monitoring of bond line defects between a composite panel and a stiffener using distributed piezoelectric sensors. Smart Materials and Structures, 27(3), 035014-. doi:10.1088/1361-665x/aaa69b 0964-1726 https://hdl.handle.net/10356/140263 10.1088/1361-665X/aaa69b 2-s2.0-85043470275 3 27 en Smart Materials and Structures © 2018 IOP Publishing Ltd. All rights reserved. |
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Engineering::Mechanical engineering SHM Feature Guided Waves Yu, Xudong Fan, Zheng Puliyakote, Sreedhar Castaings, Michel Remote monitoring of bond line defects between a composite panel and a stiffener using distributed piezoelectric sensors |
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Structural health monitoring (SHM) using ultrasonic guided waves has proven to be attractive for the identification of damage in composite plate-like structures, due to its realization of both significant propagation distances and reasonable sensitivity to defects. However, topographical features such as bends, lap joints, and bonded stiffeners are often encountered in these structures, and they are susceptible to various types of defects as a consequence of stress concentration and cyclic loading during the service life. Therefore, the health condition of such features has to be assessed effectively to ensure the safe operation of the entire structure. This paper proposes a novel feature guided wave (FGW) based SHM strategy, in which proper FGWs are exploited as a screening tool to rapidly interrogate the representative stiffener-adhesive bond-composite skin assembly. An array of sensors permanently attached to the vicinity of the feature is used to capture scattered waves from the localized damage occurring in the bond line. This technique is combined with an imaging approach, and the damage reconstruction is achieved by the synthetic focusing algorithm using these scattered signals. The proposed SHM scheme is implemented in both the 3D finite element simulation and the experiment, and the results are in good agreement, demonstrating the feasibility of such SHM strategy. |
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School of Mechanical and Aerospace Engineering |
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School of Mechanical and Aerospace Engineering Yu, Xudong Fan, Zheng Puliyakote, Sreedhar Castaings, Michel |
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Article |
author |
Yu, Xudong Fan, Zheng Puliyakote, Sreedhar Castaings, Michel |
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Yu, Xudong |
title |
Remote monitoring of bond line defects between a composite panel and a stiffener using distributed piezoelectric sensors |
title_short |
Remote monitoring of bond line defects between a composite panel and a stiffener using distributed piezoelectric sensors |
title_full |
Remote monitoring of bond line defects between a composite panel and a stiffener using distributed piezoelectric sensors |
title_fullStr |
Remote monitoring of bond line defects between a composite panel and a stiffener using distributed piezoelectric sensors |
title_full_unstemmed |
Remote monitoring of bond line defects between a composite panel and a stiffener using distributed piezoelectric sensors |
title_sort |
remote monitoring of bond line defects between a composite panel and a stiffener using distributed piezoelectric sensors |
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2020 |
url |
https://hdl.handle.net/10356/140263 |
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1681057311313887232 |