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首页> 外文会议>International Astronautical Congress(IAC2006); 20061002-06; Valencia(ES) >MWCNT-MODIFIED FIBER REINFORCED COMPOSITES WITH NANO-SENSING CAPABILITIES: A WAY TOWARDS THE DEVELOPMENT OF THE NEW FUNCTIONAL MATERIALS FOR SPACE APPLICATIONS
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MWCNT-MODIFIED FIBER REINFORCED COMPOSITES WITH NANO-SENSING CAPABILITIES: A WAY TOWARDS THE DEVELOPMENT OF THE NEW FUNCTIONAL MATERIALS FOR SPACE APPLICATIONS

机译：具有纳米传感能力的MWCNT改性纤维增强复合材料：一种开发用于空间应用的新型功能材料的方法

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Multi-functionality is an aspect that space technology is focusing on the last decades. Space systems design parameters like the mass reduction with increased system efficiency demand multifunctional approaches. The technology concept of multifunctional materials with sensing capabilities combined with enhanced mechanical properties could prove useful for the high requirements of the space sector. Composite materials are nowadays widely used in space applications. The introduction of nanotechnology in the field of composites has opened new horizons towards the development of advanced materials with unique functional properties. The incorporation of nano-fillers like carbon-nanotubes (CNTs) in conventional carbon fiber reinforced polymers (CFRPs) introduces the possibility of improved electrical and thermal properties combined with high mechanical efficiency. Moreover, the non-destructive damage detection in CFRPs during mechanical loading is a key parameter in many applications, especially in space structures. Previous studies within the last decade have shown that the mechanical deformation and the electric resistance of CFRPs are closely connected, so that the material can act as an inherent sensor of its own damage. The target of this research is to set a point about the control of the damage growth and propagation via the monitoring of the electrical conductivity during mechanical loading of CFRPs. Towards this direction, multi-walled carbon nanotubes (MWCNTs) were used as an electrically conductive dopant in
机译：多功能是太空技术最近几十年关注的一个方面。空间系统的设计参数（如质量降低，系统效率提高）需要多功能方法。具有感应功能和增强的机械性能的多功能材料的技术概念可能被证明对航天领域的高要求有用。如今，复合材料已广泛用于航天领域。纳米技术在复合材料领域的引入为开发具有独特功能特性的先进材料开辟了新的视野。在传统的碳纤维增强聚合物（CFRP）中掺入纳米填料（如碳纳米管（CNT））引入了改善电气和热性能以及高机械效率的可能性。此外，在许多情况下，尤其是在空间结构中，CFRP在机械载荷过程中的非破坏性损坏检测是关键参数。过去十年中的先前研究表明，CFRP的机械变形和电阻是紧密相连的，因此该材料可以充当自身损坏的固有传感器。这项研究的目的是通过在CFRPs的机械载荷过程中监测电导率，为控制损伤的增长和传播设定一个点。朝这个方向，多壁碳纳米管（MWCNTs）被用作导电掺杂剂。

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