Scattering of S0 Lamb Mode from a Blind Hole in a Plate Using Mindlin/Mindlin Plate Theory
ZHANG Hai-Yan1**, YAO Jie-Cong1, MA Shi-Wei2
1School of Communication and Information Engineering, Key Laboratory of Specialty Fiber Optics and Optical Access Networks, Shanghai University, Shanghai 200072 2Shanghai Key Laboratory of Power Station Automation Technology, School of Mechatronic Engineering and Automation, Shanghai University, Shanghai 200072
Abstract：An analytical model of Lamb wave scattering from a circular blind hole in isotropic plates is presented using the Mindlin plate theory for describing in-plane and flexural wave modes simultaneously. The model makes use of the wave function expansion technique and the boundary conditions at the hole edge to evaluate the scattered far fields of three fundamental guided wave modes. Comparisons are made to existing approximate models using Poisson/Kirchhoff theory and Poisson/Mindlin theory and a 3D model using the exact 3D equations. The results reveal that the present model is more consistent with the exact 3D model at higher frequencies than existing approximate models.
(Ultrasonics, quantum acoustics, and physical effects of sound)
引用本文:
. [J]. 中国物理快报, 2014, 31(03): 34301-034301.
ZHANG Hai-Yan, YAO Jie-Cong, MA Shi-Wei. Scattering of S0 Lamb Mode from a Blind Hole in a Plate Using Mindlin/Mindlin Plate Theory. Chin. Phys. Lett., 2014, 31(03): 34301-034301.
2014, Vol. 31 
