Acoustic emission method to ascertain damage occurrence in impacted composites
US11982643B2 · kind B2 · utility
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2References
15Claims
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Key dates
| Filing date | Nov 23, 2020 |
| Grant date | May 14, 2024 |
| Priority date | — |
| Expiry date | May 3, 2041 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01N2291/0258
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
Employing methodologies and systems to detect damage initiation and growth inside a composite material (matrix cracking, delamination, fiber break, fiber pullout, etc.) wherein damage produces high-frequency acoustic emission (AE) waves that are transported to recording sensors along with relatively lower frequency waves representing the flexural deformation of the impacted composite structure.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.