Journal
JOURNAL OF PHYSICS D-APPLIED PHYSICS
Volume 52, Issue 28, Pages -Publisher
IOP PUBLISHING LTD
DOI: 10.1088/1361-6463/ab1991
Keywords
phononic crystals; laser Doppler vibrometry; elastic wave propagation; multiple scattering; spectral-gap materials; acoustic metamaterials
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Funding
- European Union (European Regional Development Fund-ERDF)
- Greek national funds through the Operational Program Education and Lifelong Learning 2007-2013 of the National Strategic Reference Framework (NSRF 2007-2013), Action ARISTEIA II
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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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