Composite structures with integrated thermal management capacities

复合材料中心(UD-CCM)和亚琛大学纺织技术研究所(ITA)的合作表明，z纤维增强复合材料可以将导热系数(TC)提高十倍，与金属相比具有同等的热性能，同时保持了复合材料的所有传统优势。然而，对三维增强复合材料热传导性能的基本认识还不够深入，是优化设计的关键。ITA和UD-CCM将共同扩展他们的基础研究工作，以建立一个模型库，使其能够针对各种应用进行设计，从而更好地了解改善贯穿厚度性能的机制。ITA将开发适用于沥青基碳纤维的纱线结构，建模和设计集成纺织结构，制造集成导热纱线的纺织预制件，并测试和表征集成纺织结构。UD-CCM将开发一个分析和有限元模型，改进树脂注射方法，并测量TC。在这个项目中，考虑到纱线的边界条件，如纤维脆性、纱线间距和纱线直径，将探索和彻底地研究纱线形成的可能性。

Collaborative effort between the Center for Composite Materials (UD-CCM), and the Institut für Textil-technik der RWTH Aachen University (ITA) have shown that z-fiber reinforced composites can increase the thermal conductivity (TC) ten times with the potential to have equivalent thermal properties compared to metals while maintaining all the conventional benefits of composites. Nevertheless fundamental under-standing of TC behavior of three-dimensional reinforced composites is not fully comprehended and is the key to optimization. ITA and UD-CCM will together extend their fundamental research effort to establish a model base enabling design for a variety of applications that will lead to a better understanding of the mechanisms to improve the through-thickness properties. ITA will develop suitable yarn structures for pitch based carbon fibers, model and design integrated textile structure, manufacture textile preforms with integrated thermal conductive yarns and test and characterize integrated textile structures. UD-CCM will develop an analytical and finite element model, modify resin injection methods and measure the TC. The possibilities offered for the formation of yarn taking into account the boundary conditions of the yarns such as fiber brittleness, yarn spacing and yarn diameter will be explored and thoroughly investigated in this project.