Design of resonant elastodynamic metasurfaces to control S0 Lamb waves using topology optimization

Daniel Giraldo Guzman, Lalith Sai Srinivas Pillarisetti, Sashank Sridhar, Cliff J. Lissenden, Mary Frecker, Parisa Shokouhi

Research output: Contribution to journalArticlepeer-review

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Control of guided waves has applications across length scales ranging from surface acoustic wave devices to seismic barriers. Resonant elastodynamic metasurfaces present attractive means of guided wave control by generating frequency stop-bandgaps using local resonators. This work addresses the systematic design of these resonators using a density-based topology optimization formulated as an eigenfrequency matching problem that tailors antiresonance eigenfrequencies. The effectiveness of our systematic design methodology is presented in a case study, where topologically optimized resonators are shown to prevent the propagation of the S0 wave mode in an aluminum plate.

Original languageEnglish (US)
Article number115601
JournalJASA Express Letters
Issue number11
StatePublished - Nov 1 2022

All Science Journal Classification (ASJC) codes

  • Acoustics and Ultrasonics
  • Music
  • Arts and Humanities (miscellaneous)

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