ENERGY REFLECTION AND TRANSMISSION CHARACTERISTICS OF LONGITUDINAL WAVE IN MULTILAYER STRUCTURE
The study on the energy reflection and transmission mechanism of ultrasonic waves in adhesive structures is very important.In view of this issue, the interaction between the ultrasound and the interface under the longitudinal wave incidence at different angles was discussed when the plate-like adhesive structure interface was intact.Besides, the influence of the change in frequency-thickness product on the energy reflection and transmission characteristics of sound wave was analyzed.The numerical results showed that the wave conversion does not occur when the longitudinal wave is incident perpendicularly, and the obvious periodic resonance appears in the energy reflection and transmission coefficient curve of longitudinal wave with the increase of frequency-thickness product.When the longitudinal wave is incident obliquely, the wave conversion will occur, and there is no periodic resonance phenomenon in the energy reflection and transmission coefficient curve of longitudinal wave and transverse wave with the increase of frequency-thickness product.The research results provide a theoretical basis for the ultrasonic inspection of adhesive structure in experiment.
Adhesive structure Longitudinal wave Energy reflection and transmission Resonance
Jun-cai DING Kai-ming LIN Yang FU Yong-li LEI
Guangdong Institute of Special Equipment Inspection and Research Zhongshan Branch, Zhongshan 528400, China
国际会议
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)
成都
英文
363-366
2017-10-27（万方平台首次上网日期，不代表论文的发表时间）