Modeling and simulation of static component generation of Lamb wave propagation in a layered plate.

Ultrasonics
Han ChenYanxun Xiang

Abstract

Modeling of the acoustic-radiation-induced static component (SC) generation of primary Lamb wave tone burst propagating in a layered plate is conducted. Accompanying the propagation of primary Lamb wave tone burst, there are the finite-duration SC bulk driving force in the interior of the layered plate, and the finite-duration SC traction stress on each surface/interface. According to the modal analysis approach for waveguide excitation, the function of the finite-duration SC bulk driving force and traction stress is to generate the finite-duration SC of primary Lamb wave tone burst. Compared with the second harmonic (SH) generation of Lamb wave propagation in a layered plate, the phase velocity matching is no longer required for the generation of the SC with a cumulative growth effect. Based on modeling of the finite-duration SC generation, it is found that the integrated amplitude of the finite-duration SC generated by propagation of the primary Lamb wave tone burst does grow with propagation distance. Meanwhile, the numerical analyses and the finite element (FE) simulations are conducted to investigate the effect of the said SC generation. It is found that, although the interfacial layer of the layered plate considered is qu...Continue Reading

References

Apr 8, 2010·The Journal of the Acoustical Society of America·Martin F MüllerLaurence J Jacobs
Mar 20, 2012·The Journal of the Acoustical Society of America·Jianmin QuLaurence J Jacobs
Aug 24, 2013·The Journal of the Acoustical Society of America·Peter B NagyLaurence J Jacobs
May 6, 2014·Ultrasonics·Vamshi Krishna Chillara, Cliff J Lissenden
Nov 15, 2018·The Journal of the Acoustical Society of America·Peng ZuoZheng Fan

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