Open AccessNumerical simulation of laser-generated Rayleigh wave by finite element method on viscoelastic materials
Author(s) -
Sun Hong-Xiang,
Bo Xu,
Jijun Wang,
Guowen Xu,
Changjie Xu,
Feng Wang
Publication year - 2009
Publication title -
wuli xuebao
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.199
H-Index - 47
ISSN - 1000-3290
DOI - 10.7498/aps.58.6344
Subject(s) - viscoelasticity , rayleigh wave , rayleigh scattering , finite element method , materials science , laser , mechanics , viscosity , wave propagation , acoustics , physics , optics , composite material , thermodynamics
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.