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Journal of KONES

Tytuł artykułu

Detection of damages in hybrid composite plates with the use of elastic waves generated by PZT active sensors

Autorzy Barski, M.  Pająk, P. 
Treść / Zawartość
Warianty tytułu
Języki publikacji EN
EN 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.
Słowa kluczowe
EN elastic waves   hybrid composite plates   piezoelectric active sensors   low velocity impact   damages   FEM  
Wydawca Institute of Aviation
Czasopismo Journal of KONES
Rocznik 2017
Tom Vol. 24, No. 2
Strony 17--24
Opis fizyczny Bibliogr. 12 poz., rys.
autor Barski, M.
  • Cracow University of Technology, Faculty of Mechanical Engineering Jana Pawła II Av. 37, 31-864 Cracow, Poland tel.: +48 12 6283389, +48 12 6283621, fax: +48 12 6283360,
autor Pająk, P.
  • Cracow University of Technology, Faculty of Mechanical Engineering Jana Pawła II Av. 37, 31-864 Cracow, Poland tel.: +48 12 6283389, +48 12 6283621, fax: +48 12 6283360,
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PL Opracowanie ze środków MNiSW w ramach umowy 812/P-DUN/2016 na działalność upowszechniającą naukę (zadania 2017).
Kolekcja BazTech
Identyfikator YADDA bwmeta1.element.baztech-61ddd44b-c46b-4de6-ac23-e757e4c5ed14
DOI 10.5604/01.3001.0010.2891