Simulation of leaky Rayleigh wave at air-solid cylindrical interfaces by finite element method
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Published on: January 6, 2023
Yan Zhao1, Zhonghua Shen, Jian Lu
1School of science, Nanjing University of Science and Technology, Xiaolingwei 200#, Nanjing 210094, PR China. zhaoyan7906@sina.com <zhaoyan7906@sina.com>
Abstract:
The finite element method is used to simulate the laser-excited leaky Rayleigh wave at air-solid cylindrical interfaces. A whole arithmetic of fluid-solid interaction is presented, which includes a coupling matrix that describing the process of the interaction between fluid and solid, the Arbitrary Lagrangian-Eulerian (ALE) formulation for treating the variation of fluid domain, which results from the Rayleigh wave propagating on the cylindrical interface, etc. Typical calculation is executed and the results show that the polarity of leaky Rayleigh waveform gradually changes as it propagates on the air-solid cylindrical interface.
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