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

Author

Tragazikis, I. K., Exarchos, D. A., Dalla, P. T., Dassios, K., Matikas, T. E., and Psarobas, I. E.

Subjects
Condensed Matter - Materials Science
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.

Published
2019
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