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1 2024

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Experimental investigation into the tensile strength post-repair on damaged aluminium 2024 - T3 plates using hybrid bonding/riveting

Merah A.Abdelkrim, Houari Amin, Madani Kouider, Belhouari Mohamed, Amroune Salah, Chellil Ahmed, Yahia Cherif Zineelabidine, Campilho Raul D.S.G.

Acta Mechanica et Automatica

2024

Vol. 18, no. 3

514--525

Since the implementation of repair processes by composite patch bonding, this process has consistently demonstrated high performance across various industrial sectors, especially in the fields of aeronautics, aerospace and civil engineering. Consequently, there are situations in which the riveting process becomes the sole solution, particularly when the structure is subjected to severe mechanical or thermo-mechanical stresses, since adhesives have low mechanical strength after aging. Each method has its own set of advantages and disadvantages. The current trend is to combine these two processes to minimise their drawbacks as much as possible. The objective of this work is to present an experimental study on the repair of an aluminium plate AL2024-T3 with a central circular notch using a patch of different nature (metal or composite), under tensile loading conditions. The repair composite considered is a carbon/epoxide. The results of the tensile tests showed that the repair by the combination of the two processes improves the mechanical strength of the damaged structure. A comparison of the results of the experimental curves obtained on riveted, bonded and hybrid assemblies has been taken into consideration.