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Abstract
The paper presents the results of experimental studies determining the effect of temperature on the shear strength of the adhesive joint between the layers of the fiber metal laminate (FML). The tests were carried out for composites being a combination of 2024-T3 aluminum alloy sheet and Glass Fiber-Reinforced Polymer (GFRP) made in the autoclave process. The key factor determining the quality of layered composites is the high strength adhesive joint between the layers. Due to the possibility of extreme temperature conditions during utilization of the composite structure, tests were carried out at reduced temperatures, i.e. -60°C, as well as elevated temperatures, i.e. 80°C. The obtained results were related to the results obtained at a room temperature (RT). The study showed that at the elevated temperature the shear strength increased by approx. 10% compared to the result obtained at room temperature. There is also a significant reduction in the stiffness of the joint as the temperature increases. In turn, a slight increase in joint stiffness was demonstrated for the reduced temperature.
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