ABSTRACT A comprehensive and comparative experimental study was conducted to determine how the thermal ageing process, applied at different temperatures for different exposure durations, affects the mechanical properties and mechanical performance of the single lap composite joints bonded by adhesives with different properties. Initially, the glass fibre/epoxy composite joints were divided into seven different groups and each group was subjected to thermal ageing at 10 to 120°C. Subsequently, specimens aged for 24 to 1440 hours were subjected to single lap shear tests to determine the change in their mechanical properties. As a result of this study, it is deduced that the maximum load carrying capacity generally decreases as the thermal ageing duration increases and take its lowest value at 120°C, however, surprisingly the capacity of joints bonded with a ductile characteristic adhesive (DP 460) and aged at 80 °C shows an increasing trend as the ageing duration is prolonged.

中文翻译：

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热老化对使用多种粘合剂粘合的无碱玻璃纤维/环氧树脂复合材料接头拉伸性能的影响

摘要进行了一项全面的比较实验研究，以确定在不同温度下应用不同暴露时间的热老化过程如何影响由不同性能的粘合剂粘合的单搭接复合材料接头的机械性能和机械性能。最初，玻璃纤维/环氧树脂复合材料接头分为七组，每组在 10 至 120°C 下进行热老化。随后，将老化 24 至 1440 小时的试样进行单搭接剪切试验，以确定其机械性能的变化。研究结果表明，随着热老化时间的增加，最大承载能力通常会降低，并在 120°C 时达到最低值，然而，