| 2025 №04 (04) |
DOI of Article 10.37434/tdnk2025.04.05 |
2025 №04 (06) |
"Tekhnichna Diahnostyka ta Neruinivnyi Kontrol" (Technical Diagnostics and Non-Destructive Testing) #4, 2025, pp. 38-43
Development of materials and technologies for express diagnostics of damage to aircraft structures due to impacts
M.L. Kazakevych1,2, V.M. Kazakevych1,2, O.I. Semenets3, O.V. Denyshchenko1, P.O. Slobodenyuk1
1National Technical University of Ukraine «Igor Sikorsky Kyiv Polytechnic Institute». 37 Beresteysky Ave., 03056, Kyiv, Ukraine. E-mail: kazakevich.m@gmail.com2LLC «NDT Ukraine», Kyiv, Ukraine. E-mail: m_kazakevich@ukr.net
3SC «Antonov». 1 Acad. Tupolev str., 03062, Kyiv, Ukraine. E-mail: semenets@antonov.com
The paper is devoted to the development of technology and means of express diagnostics of stress raisers on the surface of aircraft, which are generated as a result of mechanical impacts of birds or gravel fragments when landing on unprepared airfields. The inability to timely detect the places of such impacts can cause catastrophic consequences. The authors conducted a study on the use of a combination of brittle coating methods with capillary testing and developed a technology for express monitoring of the surfaces of large-sized aircraft structures to detect stress and damage. It is proposed to add special coatings to the standardized protection of aircraft structures, including paint containing a phosphor indicator, and a brittle layer of aviation varnish. If the coating is damaged by mechanical impact, moisture will dissolve the indicator and UV lighting will visualize the impact site. 6 Ref.,1 Tabl., 6 Fig.
Keywords: express diagnostics of aircraft surfaces, stress raisers, brittle coating method, capillary method of non-destructive testing
Received: 08.10.25
Received in revised form: 04.11.25
Accepted: 12.12.25
References
1. Tymchyk, G.S., Filippova, M.V., Demchenko, M.O. (2023) Diagnostics of stress-strain state of metal structures.Monograph. Kyiv, KPI, Vyd-vo Politekhnika [in Ukrainian].2. Kasatkin, B.S., Kudrin, A.B., Lobanov, L.M. (1981) Experimental methods of strain and stress investigation: Textbook. Kyiv, Naukova Dumka [in Ukrainian].
3. 2020) Principles and Applications of Liquid Penetrant Testing. ASNT, ISBN 978-1-57117-1-479-6.
4. Kazakevich, M.L., Semenets, A.I., Derecha, V.Ya., Lazakevich, V.M. (2015) Modern tasks of diagnostics of technical condition of aviation equipment by penetrant inspection. Tekhnicheskaya Diagnostika i Nerazrushayushchiy Kontrol, 3 , 49-51 [in Russian]. https://doi.org/10.15407/tdnk2015.03.09
5. Alburger, J.A. (1972) Testing panel for inspection penetrants having cracks of controlled depth and width. Patent US3791198A, 5007 Hillard Ave., La Canada, Calif. 9101, Nov. 27, 1972. Appl. No. 309,690.
6. Kazakevych, M.L., Semenets, O.I., Derecha, V.Ya. (2015) Indicator material for identification of defects in surface layers of machine parts. Pat. on utility model 100082. Appl. U201500018 of 05.01.2015. Publ. 10.07.15. https://iprop-ua.com/inv/ftxyuqom/ https://doi.org/10.24198/jmei.v5i01.11151.g5011
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