Sikundalapuram Ramesh, S.K. ; Chitnaduku Thippeswamy, M. ; Rajagopal, P. ; Balasubramanian, Krishnan (2020) Elastic metamaterial rod for mode filtering in ultrasonic applications Electronics Letters, 56 (19). pp. 1024-1027. ISSN 0013-5194
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Official URL: https://doi.org/10.1049/el.2020.1576
Related URL: http://dx.doi.org/10.1049/el.2020.1576
Abstract
The proposed 1D elastic metamaterial rod finds application in non-destructive evaluation, as a filter in the transduction side, where only the torsional and flexural modes need to be generated by isolating longitudinal modes. In this Letter, this is achieved by obtaining a wide bandgap in low-frequency ultrasound regime. The novelty of the proposed design arises from the use of a high impedance mismatch between the materials selected for the rod. The proposed concept is demonstrated and verified with numerical simulations. The effectiveness of the proposed technique is confirmed by comparing the results obtained from the rod made of a single material.
| Item Type: | Article |
|---|---|
| Source: | Copyright of this article belongs to The Institution of Electrical Engineers. |
| ID Code: | 140953 |
| Deposited On: | 24 Nov 2025 05:29 |
| Last Modified: | 24 Nov 2025 05:29 |
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