%0 Journal Article
%T Numerical simulation of laser-generated Rayleigh wave by finite element method on viscoelastic materials<br>激光激发黏弹表面波有限元数值模拟
%A Sun Hong-Xiang
%A Xu Bai-Qiang
%A Wang Ji-Jun
%A Xu Gui-Dong
%A Xu Chen-Guang
%A Wang Feng
%A <br>孙宏祥
%A 许伯强
%A 王纪俊
%A 徐桂东
%A 徐晨光
%A 王峰
%J 物理学报
%D 2009
%I 
%X 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.
%K surface wave
%K laser ultrasonic
%K finite element method
%K viscoelasticity<br>表面波，
%K 激光超声，
%K 有限元方法，
%K 黏弹性
%U http://www.alljournals.cn/get_abstract_url.aspx?pcid=6E709DC38FA1D09A4B578DD0906875B5B44D4D294832BB8E&cid=47EA7CFDDEBB28E0&jid=29DF2CB55EF687E7EFA80DFD4B978260&aid=8691ED7957C14F3A002F4F0856D0D7DC&yid=DE12191FBD62783C&vid=9FFCC7AF50CAEBF7&iid=9CF7A0430CBB2DFD&sid=B619CD3468BD6782&eid=3578AFF1C45AB977&journal_id=1000-3290&journal_name=物理学报&referenced_num=0&reference_num=0