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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Main Authors: Yu, Xudong, Fan, Zheng, Puliyakote, Sreedhar, Castaings, Michel
Other Authors: School of Mechanical and Aerospace Engineering
Format: Article
Language:English
Published: 2020
Subjects:
SHM
Online Access:https://hdl.handle.net/10356/140263
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Institution: Nanyang Technological University
Language: English
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spelling 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.
institution Nanyang Technological University
building NTU Library
country Singapore
collection DR-NTU
language English
topic Engineering::Mechanical engineering
SHM
Feature Guided Waves
spellingShingle 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
description 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.
author2 School of Mechanical and Aerospace Engineering
author_facet School of Mechanical and Aerospace Engineering
Yu, Xudong
Fan, Zheng
Puliyakote, Sreedhar
Castaings, Michel
format Article
author Yu, Xudong
Fan, Zheng
Puliyakote, Sreedhar
Castaings, Michel
author_sort 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
publishDate 2020
url https://hdl.handle.net/10356/140263
_version_ 1681057311313887232