TRANSVERSE WAVE PROPAGATION CHARACTERISTICS IN DEBONDING STRUCTURE

摘要：

　　The research on the debonding of adhesive structural interface is a difficult frontier issue.Based on the transfer matrix method, the acoustic reflection and transmission coefficient expressions in the multi-layer debonding structure under the transverse wave incidence were deduced, the interaction between the ultrasonic wave and the different morphology interfaces was studied, and the influence of incidence angle on the acoustic propagation characteristics was also analyzed.The results showed that the reflection or transmission coefficient method of transverse wave can easily distinguish the interface forms under non-grazing incidence of transverse wave.If the incidence angle of transverse wave is between 0° and 90°, the interface form can also be identified using the longitudinal wave transmission coefficient method.Moreover, if the incidence angle is near the critical angle, the reflection coefficient method of longitudinal wave can also be used to identify the interface form.The research results provide a theoretical basis for the ultrasonic detection of debonding of adhesive structure in experiment.

关键词： Transfer matrix method Ultrasound Multi-layer structure Reflection and transmission coefficients

作者: Jun-cai DING Yang FU Kai-ming LIN Jing-kai ZHANG

作者单位: Guangdong Institute of Special Equipment Inspection and Research Zhongshan Branch, Zhongshan 528400, China

会议类型: 国际会议

会议名称: The 2017 Symposium on Piezoelectricity,Acoustic Waves and Device Applications(2017全国压电和声波理论及器件技术研讨会)

会议地点: 成都

会议语种:英文

页码: 359-362

在线出版日期: 2017-10-27（万方平台首次上网日期，不代表论文的发表时间）