期刊
PHYSICS LETTERS A
卷 375, 期 30-31, 页码 2863-2867出版社
ELSEVIER SCIENCE BV
DOI: 10.1016/j.physleta.2011.06.006
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资金
- AFOSR [FA9550-10-1-0061]
In this Letter, both in-plane and out-of-plane guided waves in a thin plate with local resonators are studied numerically and experimentally. Through the numerical simulation, a new metamaterial plate design is achieved for a low-frequency bandgap in both in-plane and out-of-plane guided waves. Experiments were conducted to validate the numerical design. In the experiment, piezoelectric transducers were used to generate and receive guided wave signals. The results show that the numerical predictions are in very good agreement with the experimental measurements. Specifically, the connection between the local resonance in the thin plate and its wave attenuation mechanism was discussed. (C) 2011 Elsevier B.V. All rights reserved.
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