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- Article name
- Complex application of fiber optic sensors and computed X-ray tomography for non-destructive testing of three-layer composite power elements of construction
- Authors
- BUDADIN O. N., , oleg.budadin@yandex.ru, JSC Central Research Institute for Special Machinery, Khotkovo, Moscow Region, Russia
KOZELSKAYA S. O., , kozelskaya.Sofik1977@yandex.ru, JSC Central Research Institute for Special Machinery, Khotkovo, Moscow Region, Russia
FEDOTOV M. Yu., , fedotovmyu@gmail.com, Moscow Aviation Institute (National Research University), Moscow, Russia
- Keywords
- three-layer composite power elements / carbon fiber reinforced plastic skin / aluminum honeycomb core / fiber optic sensor / computed X-ray tomography / impact / static stretching / delamination / porosity
- Year
- 2021 Issue 2 Pages 48 - 55
- Code EDN
- Code DOI
- 10.52190/2073-2562_2021_2_48
- Abstract
- This article describes the results of experimental researches on the application of an integrated system for non-destructive testing (NDT) of three-layer composite power elements of construction based on carbon fibre reinforced plastic skin and aluminum honeycomb. The method of computed X-ray tomography (CT) was used to research the structure of the construction material and identify defects at the stage of incoming inspection and after impact. Optical monitoring of the stress-strain state of the power elements was carried out by integrated fiber-optic sensors (FOS) both during impact and during bench tests for static tension. It is shown that the application of the CT method makes it possible to assess both the presence of manufacturing defects and the appearance of damages resulting from the impact, and the integrated fiber-optic control system makes it possible to record the fact of impact and ensure continuous monitoring during testing until complete loss of stability and destruction of the structure. It has been established that the complex application of these diagnostic systems contributes to the improvement of the quality and reliability of the control of three-layer power elements.
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