With increased use of polymer composites in the aerospace industry, there has also been increased interest in development of hybrid adhesive joints, such as composites and aluminum, bonded with epoxy adhesives. Joints can be additionally protected against detachment, in this study we used different composite bolts. The main advantage of such joints is in lightweight construction, a layer of adhesive also serves as an insulation between different materials, which prevents galvanic corrosion. In this paper we prove better strength of adhesive joints without pin that secures joints from breaking, the main reason for that is in reduced gluing surface and uneven transmission of force. Higher value of strength was obtained from joints with carbon fiber pin, because of its lower elastic module, than the aramid fiber pin, where there was a delayed transmission of force. Laminates that were made with vacuum infusion, are from the mechanical point of view comparable with glued joints. On the breaking surfaces we noticed mostly delamination of carbon fibers and uneven thickness of glue, the industrial glue withstood all the specified loads.
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