Akademik Veri Yönetim Sistemi
Sustainable Aviation, Springer Nature, ss.7-16, 2024
In this study, single-lap bonding joints were prepared using aluminum alloy 2024-T3 (AA2024) plates and eight-layer carbon fiber-reinforced epoxy hybrid composite (CFREC) plates. Epoxy glue was used for the bonding process, and in order to remove the brittleness of the epoxy by forming a second interface, Nylon 6.6 nanofiber reinforcement by electrospinning was produced and reinforced to the epoxy adhesive. Thus, single-lap bonding joints, which are both glued with pure epoxy and reinforced with epoxy and N6.6, have been obtained. Low-speed impact tests of 1.04 m/s under five different temperatures (−50, −20, 0, 23, and 50 °C) were applied to all single-lap bonding joints produced. Tensile tests were applied to the non-breaking samples in accordance with the ASTM D1002-10 standard, and the loading status after low-speed impact was examined. It was determined that while 1.5 J of the 3 J energy given by low-speed impact was absorbed in common in all samples, the rest was returned, and there were some separations in the adhesion area due to this impact. The highest tensile force of pure epoxy samples and N6.6 reinforced samples after low-speed impact was obtained, 2230.27 N and 2992.74 N, respectively, at 23 °C, and it was determined that N6.6 reinforcement increased the impact force by 34% at room temperature. For the tensile force, the lowest values were reached at −50 °C. For pure epoxy and N6.6 reinforced samples obtaining 585.15 N and 618.61 N values, respectively, an increase of 5.7% was determined. In addition, the rupture surfaces of the samples, which were completely destroyed by the tensile test, were examined with a scanning electron microscope (SEM) for damage analysis.