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.

本研究的目的有二：一是了解空间环境下极端热循环疲劳下复合材料结构的失效机理。第二个目标是开发具有良好导电性同时保持良好粘结强度的结构粘合剂。该项目将包括三个方面。一种是制造两种形式的层压板：实心层压板和夹层层压板。其次，将开发具有高导电性同时保持良好粘结强度的结构胶粘剂。第三，模拟空间环境，对使用结构胶的实心层板和夹层层板进行热循环疲劳试验。将观察到由于这种热负荷而产生的裂纹的发展。负责这些裂纹的发展机制将制定。第四，也是最后一个是模型的发展，提供指导方针，无论是预测的复合材料结构的负载环境的寿命，或设计，以延长结构的寿命。 将通过开发具有增强的抗裂性的新树脂来尝试解决裂纹问题。这将通过添加纳米颗粒来完成。研究结果对空间卫星用复合材料结构具有一定的应用价值。它们还可应用于飞机或其他经受极端热循环环境的设备中使用的复合结构。