Influence of bonding quality for piezoelectric sensors with applications to Lamb wave damage detection
In this paper,the propagation characteristics of Lamb waves activated and collected by piezoelectric sensors bonded on an aluminum panel were investigated both theoretically and experimentally on different bonding cases.The bonding layer is an intermedium of energy transmission between structure and sensor.The bonding quality heavily effects on the lamb propagation characteristics,including frequency dispersion,mode conversion,and signal amplitude.In particular,the variation of the surface strain with frequency for symmetric lamb mode was studied in different bonding quality.A sensor bonding quality evaluation method based on frequency response characteristics of the surface strain was developed to compensate the sensor network.The proposed approach can provide a useful reference for structural health monitoring strategy formulation.
Lamb waves piezoelectric sensors bonding quality structural health monitoring strategy
Dongyue Gao Zhanjun Wu Yishou Wang Kehai Liu
State Key Laboratory of Structural Analysis for Industrial Equipment, Dalian University of Technology, Dalian 116024, China
国际会议
济南
英文
494-499
2013-05-18（万方平台首次上网日期，不代表论文的发表时间）