The Influence of Material Configuration of Fibre-Metal Laminates with Alumina Core on Flexural Strength

• Autorzy: Frankiewicz Mariusz , Karoluk Michał , Dziedzic Robert , Timmel Tristan , Scholz Peter

Identyfikatory

DOI

10.2478/fas-2022-0003

• Języki publikacji: EN

Abstrakty

EN

Fibre metal laminates (FMLs) consisting of layers made of PA6 polyamide prepregs reinforced with glass and carbon fibres and an aluminium alloy core are the new variant of the other types used by aerospace FML materials such as GLARE or CARALL. By using a thermoplastic matrix, they can be shaped by stamping processes, which allows for a more efficient production process than classical laminating methods such as vacuum bagging. In addition to the improved impact energy absorption efficiency, the metallic core can be utilised to effectively bond the composite part to adjacent metallic structures. This article presents the influence of the material configuration of fibre-metal laminates consisting of continuous fibre-reinforced thermoplastic outer layers integrated with a layer of metallic aluminium alloy inserts - a number of layers, type and direction of reinforcing fibres - on the static and fatigue flexural properties. In this study, eight laminate configurations were prepared using a one-step variothermal consolidation process. The results showed that in the three-point flexural fatigue test, the samples exceeded 106 cycles at stresses <30% of the static bending strength. Laminates with predominantly longitudinally reinforced layers showed the highest fatigue strength among the FML samples analysed. The type of reinforcing fibres and the number of layers were less affected on the analysed mechanical properties.

Słowa kluczowe

EN

fibre-metal laminates; flexural strength; fatigue; composite materials

• Wydawca: Wydawnictwa Naukowe Sieci Badawczej Łukasiewicz - Instytutu Lotnictwa
• Czasopismo: Fatigue of Aircraft Structures
• Rocznik: 2022
• Tom: Iss. 14
• Strony: 18--28
• Opis fizyczny: Bibliogr. 8 poz., rys., tab., wykr.

Twórcy

autor

Frankiewicz Mariusz

• Faculty of Mechanical Engineering, Wroclaw University of Science and Technology, Lukasiewicza 5, 50-371 Wroclaw, Poland

• https://orcid.org/0000-0001-8270-5474

autor

Karoluk Michał

• Faculty of Mechanical Engineering, Wroclaw University of Science and Technology, Lukasiewicza 5, 50-371 Wroclaw, Poland

• https://orcid.org/0000-0002-3961-1517

autor

Dziedzic Robert

• Faculty of Mechanical Engineering, Wroclaw University of Science and Technology, Lukasiewicza 5, 50-371 Wroclaw, Poland

• https://orcid.org/0000-0002-3443-4136

autor

Timmel Tristan

• Institute of Lightweight Structures and Polymer Technology, Technische Universität Chemnitz, Reichenhainer Str. 31-33, 09126 Chemnitz, Germany

autor

Scholz Peter

• Fraunhofer Institute for Machine Tools and Forming Technology IWU, Reichenhainer Str. 88, 09126 Chemnitz, Germany

• https://orcid.org/0000-0003-0485-9077

Bibliografia

• Alderliesten, R. (2017). Fatigue and fracture of fibre metal laminates. Cham, Switzerland: Springer International Publishing.
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• Bellini, C., Di Cocco, V., Iacoviello, F., & Sorrentino, L. (2020). Comparison between long and short beam flexure of a carbon fibre based FML. Procedia Structural Integrity, 26, 120-128. doi:10.1016/j.prostr.2020.06.015.
• Ding, Z., Wang, H., Luo, J., & Li, N. (2021). A review on forming technologies of fibre metal laminates. International Journal of Lightweight Materials and Manufacture, 4, 110-26.
• Giasin, K., & Ayvar-Soberanis, S. (2017). Microstructural investigation of drilling induced damage in fibre metal laminates constituents. Composites Part A: Applied Science and Manufacturing, 97, 166-78. doi:10.1016/j.compositesa.2017.02.024.
• Gunnink, J. W., Vlot, A., Vries, T. J. de., & van der Hoeven, W. (2002). Glare technology development 1997-2000. Applied Composite Materials, 9, 201-219. doi:10.1023/A:1016006314630.
• Li, H., Xu, Y., Hua, X., Liu, C., & Tao, J. (2018). Bending failure mechanism and flexural properties of GLARE laminates with different stacking sequences. Composite Structures, 187, 354-363. doi:10.1016/j.compstruct.2017.12.068.
• Zopp, C., Dittes, A., Nestler, D., Scharf, I., Kroll, L., & Lampke, T. (2019). Quasi-static and fatigue bending behavior of a continuous fiber-reinforced thermoplastic/metal laminate. Composites Part B: Engineering, 174, 107043.