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Proceedings Paper

Thin-plate metamaterials: physics and applications
Author(s): Pei Li; Xiaoming Zhou; Shanshan Yao; Guoliang Huang; Gengkai Hu
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Paper Abstract

A thin-plate metamaterial made of a thin plate periodically attached with mass-spring oscillators is analyzed. Based on the analytic solutions of sound waves incident on the metamaterial, effective mass density can be defined. Approximate expressions of effective mass can be derived when the first-order vibration mode of the plate is considered. It is found that the Lorentz and Drude behavior of effective mass can be obtained. As an example of potential applications, the sound insulation effects of multilayered thin-plate metamaterials are studied. High transmission loss can be achieved in a finite-layered metamaterials at negative-mass frequencies. Their applications to noise control can be anticipated.

Paper Details

Date Published: 20 April 2012
PDF: 7 pages
Proc. SPIE 8348, Health Monitoring of Structural and Biological Systems 2012, 834826 (20 April 2012); doi: 10.1117/12.916963
Show Author Affiliations
Pei Li, Beijing Institute of Technology (China)
Xiaoming Zhou, Beijing Institute of Technology (China)
Shanshan Yao, Beijing Institute of Technology (China)
Guoliang Huang, Univ. of Arkansas at Little Rock (United States)
Gengkai Hu, Beijing Institute of Technology (China)

Published in SPIE Proceedings Vol. 8348:
Health Monitoring of Structural and Biological Systems 2012
Tribikram Kundu, Editor(s)

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