Thin-plate metamaterials: physics and applications

Pei Li; Xiaoming Zhou; Shanshan Yao; Guoliang Huang; Gengkai Hu

doi:10.1117/12.916963

20 April 2012 Thin-plate metamaterials: physics and applications

Pei Li, Xiaoming Zhou, Shanshan Yao, Guoliang Huang, Gengkai Hu

Proceedings Volume 8348, Health Monitoring of Structural and Biological Systems 2012; 834826 (2012) https://doi.org/10.1117/12.916963
Event: SPIE Smart Structures and Materials + Nondestructive Evaluation and Health Monitoring, 2012, San Diego, California, United States

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.

Citation Download Citation

Pei Li, Xiaoming Zhou, Shanshan Yao, Guoliang Huang, and Gengkai Hu "Thin-plate metamaterials: physics and applications", Proc. SPIE 8348, Health Monitoring of Structural and Biological Systems 2012, 834826 (20 April 2012); https://doi.org/10.1117/12.916963

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