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arXiv · 1903.01616

Dispersion assessment of three-dimensional Phononic Crystals using Laser Doppler Vibrometry

I. K. Tragazikis·D. A. Exarchos·P. T. Dalla·K. Dassios·T. E. Matikas·I. E. Psarobas
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Abstract

The elastodynamic response of finite 3D phononic structures is analyzed by means of comparing experimental findings obtained through a laser Doppler vibrometry-based methodology and theoretical computations performed with the Layer-Multiple-Scattering method. The recorded frequency-gap spectrum of the phononic slabs exhibited a good agreement of theory to experiment. Along these lines, a newly developed technique, based on laser doppler vibrometry, has been proposed and validated for the dispersion efficiency in 3D phononic metamaterials.

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I. K. Tragazikis, D. A. Exarchos, P. T. Dalla, K. Dassios, T. E. Matikas, I. E. Psarobas. 2019-03-05. Dispersion assessment of three-dimensional Phononic Crystals using Laser Doppler Vibrometry. https://doi.org/10.1088/1361-6463/ab1991

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