Detection of damages in hybrid composite plates with the use of elastic waves generated by PZT active sensors
Authors:
- Marek Barski,
- Piotr Pająk
Abstract
The presented article is devoted to the problem of detection and localization of damages occurring in components of structures, which are made of hybrid composite materials. The subject of the work is a square plate consisting of a single layer made of aluminum alloy and several layers made of glass fibres (glass fabric) and epoxy resin. On the surface, which is made of composite, 12 piezoelectric elements are installed. These elements sequentially, one by one, generates a signal that is further recorded by the remaining piezoelectric elements. Picked up signal for the selected pair of activator – sensor is compared with the reference signal. The reference signal corresponds to the intact structure. This kind of approach is known as the pitch – catch configuration. In situations when the signal obtained for interrogated structure and reference one differs significantly, this may indicate that a damage exists between the activator and the sensor. Next, taking into account the information obtained from the other sensors, it is possible not only to detect but also to determine the approximate location of the flaw and to estimate its size. In order to visualize the obtained results, an especially dedicated software is developed according to the algorithms available in the literature – probability ellipse. Several computer simulations of wave propagation are performed using the finite element method. The proposed procedure is also tested experimentally. The presented approach makes it possible to detect both single and multiple damages.
- Record ID
- CUTa0047458d5474ed3b7b77f5ccd45e33e
- Publication categories
- ;
- Author
- Journal series
- Journal of KONES, ISSN 1231-4005, e-ISSN 2354-0133, Quarterly
- Issue year
- 2017
- Vol
- 24
- No
- 2
- Pages
- 17-24
- Other elements of collation
- schem.; wykr.; Bibliografia (na s.) - 24; Bibliografia (liczba pozycji) - 12; Oznaczenie streszczenia - Abstr.; Numeracja w czasopiśmie - Vol. 24, No. 2
- Keywords in English
- elastic waves, hybrid composite plates, piezoelectric active sensors, low velocity impacts
- DOI
- DOI:10.5604/01.3001.0010.2891 Opening in a new tab
- URL
- http://www.kones.eu/ep2017_2.html Opening in a new tab
- Language
- eng (en) English
- License
- Score (nominal)
- 14
- Uniform Resource Identifier
- https://cris.pk.edu.pl/info/article/CUTa0047458d5474ed3b7b77f5ccd45e33e/
- URN
urn:pkr-prod:CUTa0047458d5474ed3b7b77f5ccd45e33e
* presented citation count is obtained through Internet information analysis, and it is close to the number calculated by the Publish or PerishOpening in a new tab system.