Understanding the behavior of carbon fiber reinforced composites in extreme thermal cycling space environment and development of conductive structural adhesive for same

了解碳纤维增强复合材料在极端热循环空间环境中的行为及其导电结构粘合剂的开发

• 批准号: 391358-2009
• 负责人: Hoa, SuongVan
• 金额: $ 5.75万
• 依托单位: Concordia University
• 依托单位国家: 加拿大
• 项目类别: Collaborative Research and Development Grants
• 财政年份: 2010
• 资助国家: 加拿大
• 起止时间: 2010-01-01 至 2011-12-31
• 项目状态: 已结题
• 来源: https://www.nserc-crsng.gc.ca/ase-oro/Details-Detailles_eng.asp?id=464753
• 关键词: Understanding; behavior; carbon; fiber; reinforced

This research proposal has two objectives: One is to obtain an understanding for the failure mechanism of composite structures used in extreme thermal cycling fatigue due to exposure to space environment. The second objective is to develop structural adhesives that exhibit good electrical conductivity while maintaining good bond strength. The project will consist of three aspects. One is the manufacturing of laminates in both forms: solid laminates and sandwiched laminates. Secondly structural adhesives with high electrical conductivity while maintaining good bond strength will be developed. Third the solid laminates and sandwiched laminates using the structural adhesives will be tested in thermal cycling fatigue, simulating the space environment. The development of cracks due to this thermal loading will be observed. Mechanism responsible for the development of these cracks will be formulated. Fourth and last is the development of models that provide guidelines for either predicting the life of the composite structures subject to the loading environment, or to design to prolong the life of the structure. Solution to the crack problem will be attempted by the development of new resins with enhanced crack resistance. This will be done by the addition of nanoparticles. The results of this investigation will have applications for composite structures used in satellite in space. They also have applications for composite structures used in aircraft or other equipment that are subjected to extreme thermal cycling environment.

该研究提案有两个目标：一个是要了解由于暴露于空间环境而导致的极端热循环疲劳中使用的复合结构的故障机理。第二个目标是开发结构粘合剂，在保持良好的粘结强度的同时，可以表现出良好的电导率。该项目将包括三个方面。一种是两种形式的层压板制造：固体层压板和夹层层压板。其次，将开发具有高电导率的结构粘合剂，同时保持良好的粘结强度。第三，使用结构胶粘剂将在热循环疲劳中测试固体层压板和夹层层压板，从而模拟空间环境。将观察到由于这种热负荷引起的裂纹的发展。将制定负责这些裂纹开发的机制。第四和最后一个是模型的开发，该模型为预测受载荷环境的复合结构的寿命或设计以延长结构的寿命而提供指南。 通过增强裂纹阻力的新树脂的开发将尝试解决裂纹问题。这将通过添加纳米颗粒来完成。这项研究的结果将应用于空间中卫星中使用的复合结构的应用。他们还针对飞机或其他受到极端循环环境的设备中使用的复合结构的应用。