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Lamb Wave-Based Structural Health Monitoring on Composite Bolted Joints under Tensile Load
Bin Yang1, Fu-Zhen Xuan2, Yanxun Xiang3
1School of Mechanical and Power Engineering, East China University of Science and Technology, Shanghai 200237, China. yangbin@ecust.edu.cn.
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.
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