Szczegóły publikacji
Opis bibliograficzny
Sensor location analysis in nonlinear acoustics used for damage detection in composite chiral sandwich panels / Andrzej KLEPKA, Wiesław J. STASZEWSKI, Dario di Maio, Fabrizio Scarpa, Kang-Fah Tee, Tadeusz UHL // W: Embodying intelligence in structures and integrated systems : CIMTEC 2012 : 4th international conference on Smart materials, structures and systems symposium : June 10–14, 2012, Terme, Italy / eds. Pietro Vincenzini, Fabio Casciati, Piervincenzo Rizzo. — [Italy : s.n.], 2013. — (Advances in Science and Technology ; ISSN 1662-8969 ; vol. 83). — ISBN: 978-3-908158-69-1. — S. 223–231. — Bibliogr. s. 230–231, Abstr.
Autorzy (6)
- AGHKlepka Andrzej
- AGHStaszewski Wiesław Jerzy
- di Maio Dario
- Scarpa Fabrizio
- Tee Kang-Fah
- AGHUhl Tadeusz
Dane bibliometryczne
| ID BaDAP | 68409 |
|---|---|
| Data dodania do BaDAP | 2012-10-11 |
| DOI | 10.4028/www.scientific.net/AST.83.223 |
| Rok publikacji | 2013 |
| Typ publikacji | materiały konferencyjne (aut.) |
| Otwarty dostęp |  |
| Konferencja | Symposium G on Embodying Intelligence in Structures and Integrated Systems ; 4th International Conference on Smart Materials, Structures and Systems |
| Czasopismo/seria | Advances in Science and Technology |
Abstract
This paper demonstrates damage detection in a smart sandwich panel with integrated piezoceramic transducers. The panel is built from a chiral honeycomb and two composite skins. A low-profile, surface-bonded piezoceramic transducer is used for high-frequency ultrasonic excitation. Low-frequency excitation is performed using an electromagnetic shaker. Ultrasonic sensing is performed using laser vibrometry. Nonlinear acoustics is applied for damage detection. The study is focused on sensor location analysis with respect to vibro-acoustic wave modulations. The paper demonstrates that when structure is damaged, the high-frequency "weak" ultrasonic wave is modulated by the low-frequency "strong" vibration wave. As a result frequency sidebands can be observed around the main acoustic harmonic in the spectrum of the ultrasonic signal. However, intensity of modulation strongly depends on sensor location.
