Abstract
A low-velocity vertical impact method was considered on various composite specimens. Impact damage areas were studied by the ultrasonic echo-pulse method, the damage size dependence on impact energy was determined in various polymer composite materials. Damaged specimens were tested in compression to determine their residual strength. Layer-by-layer assessment of damage was carried out for a set of specimens by the computed tomography.
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ACKNOWLEDGEMENTS
This work was supported by the Russian Foundation for Basic Research, project no. 19-08-00577.
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Mitryaikin, V.I., Bezzametnov, O.N. & Krotova, E.V. The Study of Strength of Composites under Impact. Russ. Aeronaut. 63, 397–404 (2020). https://doi.org/10.3103/S1068799820030046
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DOI: https://doi.org/10.3103/S1068799820030046