%0 conference paper
%@ 2421-2822
%A Goushegir, S., Dos Santos, J., Amancio, S.

%D 2017
%J ICCS20 – 20th International Conference on Composite Structures

 
%R doi:10.15651/978-88-938-5041-4
%T Fatigue performance of metal-composite friction spot joints
%U https://doi.org/10.15651/978-88-938-5041-4
 
%X Friction spot joining is an alternative technique for joining metals with polymers and composites. This study investigates the fatigue performance of the aluminum alloy 2024 / carbon-fiber-reinforced poly(phenylene sulfide) joints produced with friction spot joining. The surface of the aluminum was pre-treated using various surface treatment methods. The joined specimens were tested under dynamic loading using a load ratio of R = 0.1 and frequency of 5 Hz. The tests were performed at different percentages of the lap shear strength of the joint. Three models – exponential, power law and wear-out – were used to analyze the fatigue life of the joints statistically and to draw the stress-life (S-N) curves. The joints showed an infinite life of 25-35% of their quasi-static strength at 106 cycles. The joints surpassing 106 cycles were subsequently tested under quasi-static loading, showing no considerable reduction compared to their initial lap shear strength.