Study on the Influence of Riveting Squeeze Force on the Interference of GFRP/Aluminum alloy Layers Connection with Φ4mm 2A10 Rivets
In order to control the riveting interference and minimize the damage of GFRP composite caused by riveting,it is necessary to study the influence trend of riveting squeeze force on the interference of Φ4mm 2A10 rivet.The dynamic riveting process and the interference of the rivet have been simulated by ABAQUS on the effects of diameter of pre-drilled hole and riveting squeeze force of Φ4mm 2A10 aluminum alloy rivet on GFRP composite and aluminum alloy layers.On the basis of the simulation the experimental investigations are performed.The Interference test and metallographic analysis of the specimens are conducted.Results indicate that the interference of the same measurement location in the rivet increases with the increase of the riveting squeeze force and the interference with the same riveting squeeze force decreases through-the-thickness.Φ4.2mm diameter of pre-drilled hole and 18.3～18.7kN riveting squeeze force can achieve the optimum interference and the GFRP composite has no apparent injuries.
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