Harnessing normal-shear coupling in metabarriers for deep sub-wavelength underwater noise control
Vinícius F. Dal Poggetto, Marco Miniaci · 2026
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Description
Vinicius Dal Poggetto and Marco Miniaci design, in a 2026 study, thin engineered barriers that quiet underwater noise. Human noise at sea disrupts marine life, yet current barriers work only in narrow bands or fail at low pitches, where sound travels far.
Their design uses a structured material whose stiffness twists normal push into sideways strain, a coupling shaped by topology optimization done purely on the solid's properties. The barrier blocked sound strongly above two kilohertz while staying about one seventieth of a wavelength thick at lower pitches, still cutting twenty to thirty decibels. The authors also test how deep-water pressure affects performance and suggest buildable versions.
Catalog record
| CREATOR | Vinícius F. Dal Poggetto, Marco Miniaci |
|---|---|
| YEAR | 2026 |
| COLLECTION | PAPERS |
| FORMAT | TXT |
| FILE SIZE | 111 KB |
| VERSION | 1.0 |
| LICENSE | CC BY 4.0 |
| RIGHTS | CC BY |
| SOURCE | Europe PMC |