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Streszczenie: Kompozyty polimerowe wzmocnione włóknem dominują obecnie na rynku materiałów kompozytowych. Brak szczegółowej wiedzy o ich właściwościach i zachowaniu w różnych warunkach ekspozycji pod obciążeniem znacznie ogranicza szerokie możliwości zastosowania tych materiałów. Występowanie i gromadzenie wad materiału podczas eksploatacji konstrukcji prowadzi do zmiany jej stanu technicznego. Konieczność kontrolowania stanu kompozytu jest zatem uzasadniona. W tym celu można zastosować nieniszczącą metodę emisji akustycznej.
Abstract: Fibre reinforced polymer composites are currently dominating in the composite
materials market. The lack of detailed knowledge about their properties and behaviour in various
conditions of exposure under load significantly limits the broad possibilities of application
of these materials. Occurring and accumulation of defects in material during the exploitation
of the construction lead to the changes of its technical condition. The necessity to control
the condition of the composite is therefore justified. For this purpose, non-destructive method
of acoustic emission can be applied. This article presents an example of application of acoustic
emission method based on time analysis and time-frequency analysis for the evaluation
of the progress of the destructive processes and the level of degradation of glass fibre reinforced
composite tapes that were subject to tensile testing.
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