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Materials 2017, 10(6), 652; doi:10.3390/ma10060652

Lamb Wave-Based Structural Health Monitoring on Composite Bolted Joints under Tensile Load

1
School of Mechanical and Power Engineering, East China University of Science and Technology, Shanghai 200237, China
2
The Department of Electronic Engineering, Fudan University, Shanghai 200433, China
3
Beijing Spacecrafts, China Academy of Space Technology, Beijing 100094, China
*
Author to whom correspondence should be addressed.
Received: 8 May 2017 / Revised: 31 May 2017 / Accepted: 11 June 2017 / Published: 14 June 2017
(This article belongs to the Special Issue Structural Health Monitoring for Aerospace Applications 2017)
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Abstract

Online and offline monitoring of composite bolted joints under tensile load were investigated using piezoelectric transducers. The relationships between Lamb wave signals, pre-tightening force, the applied tensile load, as well as the failure modes were investigated. Results indicated that S0/A0 wave amplitudes decrease with the increasing of load. Relationships between damage features and S0/A0 mode were built based on the finite element (FE) simulation and experimental results. The possibility of application of Lamb wave-based structure health monitoring in bolted joint-like composite structures was thus achieved. View Full-Text
Keywords: Lamb wave propagation; composite bolted joints; structural health monitoring; FE simulation Lamb wave propagation; composite bolted joints; structural health monitoring; FE simulation
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This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. (CC BY 4.0).

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Yang, B.; Xuan, F.-Z.; Xiang, Y.; Li, D.; Zhu, W.; Tang, X.; Xu, J.; Yang, K.; Luo, C. Lamb Wave-Based Structural Health Monitoring on Composite Bolted Joints under Tensile Load. Materials 2017, 10, 652.

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