Abstract The durability of adhesive joints is potentially affected by the presence of water and thermal shocks. Therefore, the current work intends to study the effect of hygrothermal aging and cyclic thermal shocks degradation on the tensile properties of single-lap adhesive joints. To accomplish this goal, adhesive joints were subjected to several cycles composed of two blocks of 12 h and involving, each block, different temperatures and environments (water and air). Two batches of specimens were used in this study, involving aluminium 6082-T6 adherends with ductile and brittle adhesives. The maximum failure load and ultimate strain was obtained with the ductile adhesive. Higher hygrothermal aging temperatures result in a drastic reduction of the failure load and ultimate strain, irrespective of the adhesive type. The failure load and ultimate strain are marginally affected by the effect of thermal shocks in air, while the failure load decreases significantly with the increase in hygrothermal shocks. However, the combination of water/air was found to be more severe than water/water.

中文翻译：

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湿热老化和循环热冲击对单搭接胶接接头力学性能的影响

摘要 粘合剂接头的耐久性可能会受到水和热冲击的影响。因此，目前的工作旨在研究湿热老化和循环热冲击降解对单搭接胶接头拉伸性能的影响。为了实现这一目标，粘合接头经历了几个循环，由两个 12 小时的块组成，每个块都涉及不同的温度和环境（水和空气）。本研究中使用了两批试样，包括带有韧性和脆性粘合剂的铝 6082-T6 被粘物。使用韧性粘合剂获得最大破坏载荷和极限应变。无论粘合剂类型如何，较高的湿热老化温度都会导致失效载荷和极限应变的急剧降低。破坏载荷和极限应变受空气中热冲击的影响很小，而破坏载荷随着湿热冲击的增加而显着降低。然而，发现水/空气的组合比水/水更严重。