Szczegóły publikacji
Opis bibliograficzny
Damage detection in composite panels based on mode-converted Lamb waves sensed using 3D laser scanning vibrometer / Łukasz PIECZONKA, Łukasz AMBROZIŃSKI, Wiesław J. STASZEWSKI, David Barnoncel, Patrick Pérès // Optics and Lasers in Engineering ; ISSN 0143-8166. — 2017 — vol. 99 spec. iss.: Laser doppler vibrometry, s. 80–87. — Bibliogr. s. 87, Abstr. — Publikacja dostępna online od: 2017-01-09
Autorzy (5)
- AGHPieczonka Łukasz
- AGHAmbroziński Łukasz
- AGHStaszewski Wiesław Jerzy
- Barnoncel D.
- Pérès P.
Dane bibliometryczne
| ID BaDAP | 111703 |
|---|---|
| Data dodania do BaDAP | 2018-02-10 |
| Tekst źródłowy | URL |
| DOI | 10.1016/j.optlaseng.2016.12.017 |
| Rok publikacji | 2017 |
| Typ publikacji | artykuł w czasopiśmie |
| Otwarty dostęp |  |
| Czasopismo/seria | Optics and Lasers In Engineering |
Abstract
This paper introduces damage identification approach based on guided ultrasonic waves and 3D laser Doppler vibrometry. The method is based on the fact that the symmetric and antisymmetric Lamb wave modes differ in amplitude of the in-plane and out-of-plane vibrations. Moreover, the modes differ also in group velocities and normally they are well separated in time. For a given time window both modes can occur simultaneously only close to the wave source or to a defect that leads to mode conversion. By making the comparison between the in plane and out-of-plane wave vector components the detection of mode conversion is possible, allowing for superior and reliable damage detection. Experimental verification of the proposed damage identification procedure is performed on fuel tank elements of Reusable Launch Vehicles designed for space exploration. Lamb waves are excited using low-profile, surface-bonded piezoceramic transducers and 3D scanning laser Doppler vibrometer is used to characterize the Lamb wave propagation field. The paper presents theoretical background of the proposed damage identification technique as well as experimental arrangements and results.
