Comparison of fatigue crack growth of riveted and bonded aircraft lap joints made of Aluminium alloy 2024-T3 substrates – A numerical study
Visualitza/Obre
10.1088/1742-6596/843/1/012035
Inclou dades d'ús des de 2022
Cita com:
hdl:2117/108095
Tipus de documentText en actes de congrés
Data publicació2017
EditorInstitute of Physics (IOP)
Condicions d'accésAccés obert
Llevat que s'hi indiqui el contrari, els
continguts d'aquesta obra estan subjectes a la llicència de Creative Commons
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Reconeixement-NoComercial-SenseObraDerivada 3.0 Espanya
Abstract
Aircraft lap joints play an important role in minimizing the operational cost
of airlines. Hence, airlines pay more attention to these technologies to improve
efficiency. Namely, a major time consuming and costly process is maintenance of
aircraft between the flights, for instance, to detect early formation of cracks, monitoring crack growth, and fixing the corresponding parts with joints, if necessary. This work is focused on the study of repairs of cracked aluminium alloy (AA) 2024-T3 plates to regain their original strength; particularly, cracked AA 2024-T3 substrate plates repaired with doublers of AA 2024-T3 with two configurations (riveted and with adhesive bonding) are analysed. The fatigue life of the substrate plates with cracks of 1, 2, 5, 10 and 12.7mm is computed using Fracture Analysis 3D (FRANC3D) tool. The stress intensity factors for the repaired AA 2024-T3 plates are computed for different crack lengths and compared using commercial FEA tool ABAQUS. The results for the bonded repairs showed significantly lower stress intensity factors compared with the
riveted repairs. This improves the overall fatigue life of the bonded joint.
CitacióPitta, S., Rojas, J.I., Crespo, D. Comparison of fatigue crack growth of riveted and bonded aircraft lap joints made of Aluminium alloy 2024-T3 substrates – A numerical study. A: International Conference on Fracture Fatigue and Wear. "Journal of Physics: Conference Series, Volume 843, conference 1". Porto: Institute of Physics (IOP), 2017, p. 1-10.
ISBN1742-6596
Versió de l'editorhttp://iopscience.iop.org/
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Pitta 2017 Comp ... AA 2024-T3 substrates.pdf | article-conference paper | 980,1Kb | Visualitza/Obre |