Yang Bin, Xuan Fu-Zhen, Xiang Yanxun, Li Dan, Zhu Wujun, Tang Xiaojun, Xu Jichao, Yang Kang, Luo Chengqiang
School of Mechanical and Power Engineering, East China University of Science and Technology, Shanghai 200237, China.
The Department of Electronic Engineering, Fudan University, Shanghai 200433, China.
Materials (Basel). 2017 Jun 14;10(6):652. doi: 10.3390/ma10060652.
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 / wave amplitudes decrease with the increasing of load. Relationships between damage features and / 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.
利用压电传感器对拉伸载荷作用下的复合材料螺栓连接进行了在线和离线监测。研究了兰姆波信号、预紧力、施加的拉伸载荷以及失效模式之间的关系。结果表明，随着载荷增加，/波幅减小。基于有限元（FE）模拟和实验结果建立了损伤特征与/模式之间的关系。从而实现了基于兰姆波的结构健康监测在类螺栓连接复合材料结构中的应用可能性。
