Numerical simulation of laser-generated Rayleigh wave by finite element method on viscoelastic materials

被引：7
|
作者：
Sun Hong-Xiang [1 ]
Xu Bai-Qiang [1 ]
Wang Ji-Jun [1 ]
Xu Gui-Dong [1 ]
Xu Chen-Guang [1 ]
Wang Feng [1 ]
机构：
[1] Jiangsu Univ, Sch Sci, Zhenjiang 212013, Peoples R China
来源：
ACTA PHYSICA SINICA | 2009年 / 58卷 / 09期
关键词：
surface wave; laser ultrasonic; finite element method; viscoelasticity; THERMOELASTIC ACOUSTIC SOURCES; LAMB WAVES;
D O I：
10.7498/aps.58.6344
中图分类号：
O4 [物理学];
学科分类号：
0702 ;
摘要：
The propagation of laser-generated Rayleigh wave in the viscoelastic material are studied theoretically. Taking account of the viscosity characteristic of the viscoelastic material, a numerical model for simulating laser-generated Rayleigh wave in the viscoelastic material is developed in the frequency domain. Based on the correctness of the finite element numerical model in the frequency domain, the laser generation of Rayleigh wave in the viscoelastic material is simulated. And then, the propagation characteristics of laser-generated Rayleigh wave are discussed and the difference of Rayleigh waves in the viscoelastic material and the elastic material are compared. The effect of different viscosity modulus to the characteristic of Rayleigh wave is analyzed in detail.
引用
收藏
页码：6344 / 6350
页数：7
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