NUMERICAL ANALYSIS OF THE INTERACTION OF RAYLEIGH WAVE TO THE SUB-SURFACE CRACKS

被引：0
|
作者：
Wang, Wei [1 ]
Pan, Yong-Dong [1 ]
Zhong, Zheng [1 ]
机构：
[1] Tongji Univ, Sch Aerosp Engn & Appl Mech, Shanghai 200092, Peoples R China
来源：
2013 SYMPOSIUM ON PIEZOELECTRICITY, ACOUSTIC WAVES AND DEVICE APPLICATIONS (SPAWDA) | 2013年
关键词：
Contact acoustic nonlinearity; Numerical analysis; Harmonics;
D O I：
暂无
中图分类号：
TM [电工技术]; TN [电子技术、通信技术];
学科分类号：
0808 ; 0809 ;
摘要：
The interaction of ultrasonic waves with cracks is analyzed numerically in this paper. The nonlinear effect due to the asymmetric stiffness called contact acoustic nonlinearity (CAN) is focused. Longitudinal wave and Raleigh wave are excited separately to investigate their nonlinear interaction with cracks. Numerical results demonstrate that super-harmonics and sub-harmonics can be generated, and frequency of Rayleigh wave only in certain range can excite the harmonics when has some relations with depth of crack.
引用
收藏
页码：127 / 130
页数：4
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