期刊
WAVE MOTION
卷 45, 期 3, 页码 162-177出版社
ELSEVIER
DOI: 10.1016/j.wavemoti.2007.05.005
关键词
plate waves; scattering; mode conversion
A model for guided wave scattering from non-symmetric blind holes in isotropic plates using Poisson and Mindlin plate wave theories for in-plane and flexural wave modes, respectively, is presented. It makes use of the wave function expansion technique and coupling conditions at the defect boundary in order to evaluate the scattered far fields of the three fundamental guided wave modes. The results were compared to other analytical models as well as experimental measurements for mode conversion from S0 to A0. Measurements agreed well with predictions confirming the validity of the model, highlighting at the same time the strong frequency dependence of the scattering and mode conversion behaviour. (c) 2007 Elsevier B.V. All rights reserved.
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