Over the last two decades, the repair of existing engineering structures using fiber reinforced polymer composites has attracted a great attention by aerospace industry, as it is more economical than replacing new. With an increased use of composite material in aerospace field, it is thus essential to restore the structural integrity by repair of damaged part. Concerns regarding the long term durability of composite repair bonded joints have been a major obstacle for critical component of aerospace structures. This paper reviews the current research on the environmental durability of adhesive bonded repair of composite structures to focus on the durability concerns and suggestion on the research needed in this area. The most important environmental factors (moisture and temperature) are reviewed thoroughly and also combined environmental effect. Finite element methods used to predict the environmental influence on the composite bonded joints are briefly reviewed. Finally, the paper concludes with key findings, opportunities and future research topics in order to develop cost effective, better quality and reliable composite repair bonded joints.

中文翻译：

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复合结构在航空航天中的粘合修复：环境问题综述

在过去的二十年中，使用纤维增强的聚合物复合材料修复现有的工程结构引起了航空航天工业的极大关注，因为它比更换新的更为经济。随着在航空航天领域中复合材料的增加使用，因此必须通过修复受损零件来恢复结构完整性。关于复合材料修补粘结接头的长期耐久性的担忧已成为航空航天结构关键部件的主要障碍。本文回顾了目前对复合结构胶粘修复的环境耐久性的研究，着重于耐久性方面的关注并提出了在该领域需要进行研究的建议。彻底审查了最重要的环境因素（湿度和温度），并综合考虑了环境影响。简要回顾了用于预测环境对复合粘结接头影响的有限元方法。最后，本文总结了关键的发现，机遇和未来的研究主题，以开发具有成本效益，质量更好和可靠的复合修复粘结接头。