Investigation of the Effect of Layer Thickness of Adhesive Material on Metal to Composite Joints

Borhy, Levente and Szebényi, Gábor (2023) Investigation of the Effect of Layer Thickness of Adhesive Material on Metal to Composite Joints. ACTA MATERIALIA TRANSYLVANICA (EN), 6 (2). pp. 74-79. ISSN 2601-8799

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Abstract

In this research, fiberglass-reinforced epoxy composite plates and additively manufactured titanium inserts are adhesively bonded. The samples are investigated by tensile and shear bond test methods. After the mechanical tests, topographical evaluations are conducted over the failure surface areas. A 3D profiling method for the inspection of bonded joints has been developed to quantify and compare failure types. It was found that varying the thickness of the adhesive has a significant effect on the load-carrying capacity of the structure under normal direction loading, whereas under shear loading the effect is modest. The research methodology used allows for the qualification and comparison of further bonded structures.

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