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首页> 外文会议>Proceedings of 2007 International Conference on Advanced Fibers and Polymer Materials >Multi-functional Composite Structures-Current Progress and Future Prospectives
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Multi-functional Composite Structures-Current Progress and Future Prospectives

机译：多功能复合结构-当前进展和未来展望

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Revolutionary advances in fiber-reinforced composites in the 1960s led people to dream of aircraft manufactured solely from composites. Now, fiber reinforced composites such as graghite/ epoxy laminates are making the transition from utilization in secondary components to composing primary load bearing structures. For example, the entire fuselage and wings of the new Boeing 787 is primarily fabricated from composites. This trend is expected to continue for future aircrafts. The heterogeneity and anisotropy of composite materials make them much more complex than traditional alloys. They are more challenging to manufacture and join together, and are susceptible to stress concentration and internal damage mechanisms that reduce the durability of components. Now the challenge is to develop technologies to maintain these complex structures to keep aircraft missions ready and safe. To further enhance aircraft performance and payload capabilities, the composite structures should have multifunctional capabilities. The multi-functional composites should have built-in intelligence and capabilities of self-sensing, self- diagnosis, prognosis, and self-repair in order to adapt and respond, to prevent catastrophes and improve safety, to enhance performance, and to minimize life-cycle costs. This presentation will attempt to discuss where multi-functional structures came from and obstacles in terms of technology acceptance and freedom in design which have prevented multi-functional composite structures from becoming successful. Areas to be addressed specifically will be wireless senor network and fiber optics development for monitoring the composite structures. A significant part of this presentation will then devoted to built-in diagnosis and multi-functional capabilities in the micro-and nano-scales.
机译：1960年代纤维增强复合材料的革命性进步使人们梦想着仅使用复合材料制造的飞机。现在，纤维增强的复合材料（如辉石/环氧层压板）正在从二次组件的使用过渡到组成主要的承重结构。例如，新型波音787的整个机身和机翼主要由复合材料制成。预计未来的飞机将继续这种趋势。复合材料的异质性和各向异性使它们比传统合金复杂得多。它们在制造和连接在一起时更具挑战性，并且容易受到应力集中和内部损坏机制的影响，从而降低了组件的耐用性。现在的挑战是开发技术来维护这些复杂的结构，以保持飞机任务准备就绪和安全。为了进一步提高飞机的性能和有效载荷能力，复合结构应具有多功能能力。多功能复合材料应具有内在的智能和自我感应，自我诊断，预后和自我修复的能力，以适应和应对，预防灾难并提高安全性，增强性能并最大程度地减少寿命周期成本。本演讲将试图讨论多功能结构的来源以及在技术接受和设计自由方面的障碍，这些障碍阻碍了多功能复合结构的成功。具体要解决的领域将是无线传感器网络和用于监视复合结构的光纤开发。然后，本演示文稿的重要部分将致力于微尺度和纳米尺度的内置诊断和多功能功能。

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