Experimental and numerical study of guided wave propagation in a thin metamaterial plate
Journal
Physics Letters, Section A: General, Atomic and Solid State Physics
Journal Volume
375
Journal Issue
30-31
Pages
2863-2867
Date Issued
2011
Author(s)
Abstract
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. © 2011 Elsevier B.V.
Type
journal article