Experimental characterization of acoustic beaming from an elastic plate by coupled symmetric leaky Lamb modes

Designer mode dispersions with properties such as negative or zero group velocities have applications in tailored wave propagation and energy redistribution. The modes of elastic plates can readily exhibit such phenomena by virtue of their bulk elastic properties and thickness. Here, we investigate...

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Veröffentlicht in:	Physical review. B 2021-07, Vol.104 (4), p.1, Article 045105
Hauptverfasser:	Graham, T. J., Smith, J. D., Hibbins, A. P., Sambles, J. R., Starkey, T. A.
Format:	Artikel
Sprache:	eng
Schlagworte:	Acoustic coupling Acoustic properties Acoustics Aluminum base alloys Broadband Coupled modes Dispersions Elastic plates Elastic properties Energy flow Fourier analysis Frequencies Group velocity Lamb waves Materials Science Materials Science, Multidisciplinary Metal plates Metamaterials Numerical models Physical Sciences Physics Physics, Applied Physics, Condensed Matter Science & Technology Technology Thickness Wave propagation
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