Abstract
In this study, the effects of thermal aging on failure loads in adhesively strap joints were investigated. Thermal aging treatment was applied to the woven glass fibre/epoxy composite plates with eight-layered 0° fibre reinforcement angle, epoxy-based adhesive and to the adhesively strap joints produced with these materials. The strength of the adhesively strap joints of single strap and double strap was determined by static tensile tests. Three conditions were analyzed in the thermal aging process. The first group samples were thermally aged at a temperature of 75, 100 and 150℃ with a constant time of 4 h. The second group samples were thermally aged at a constant temperature of 150℃ for 2, 4, 6 and 8 h and the third group samples were kept at room temperature (not aged). The failure loads of samples which are exposed to thermal aging were compared with the failure loads of the non-aged samples. As a result of experimental studies, it has been determined that the failure loads of thermally aged samples have increased by 27.7% to 133.1%.
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