论文部分内容阅读
复合材料的性能可以满足广泛的要求,因此在越来越多的结构应用中起重要的作用。尤其在航空航天方面,使用二维织物或单向带制成的层板做结构部件。然而,这些复合材料因损伤容限、冲击性能以及制造昂贵而存在着一些缺点。这些缺点可以通过采用由新的编织技术生产出来的三维增强纤维结构而得到克服。一方面这项新技术因叠层工序简单而简化生产程序,另一方面,可以提高复合材料在厚度方向上的性能,有较好的损伤容限和抗冲击性能。本文叙述了对复合材料有用的不同编织技术和制造工艺,讨论了影响编织和浸渍工艺的一些基本因素,并总结了不同增强几何形状的潜力。
The performance of composite materials can meet a wide range of requirements and therefore play an important role in more and more structural applications. Especially in aerospace, the use of two-dimensional fabric or unidirectional belt made of structural components. However, these composites have some drawbacks due to damage tolerance, impact performance, and manufacturing cost. These disadvantages can be overcome by using the three-dimensional reinforcing fiber structure produced by the new weaving technique. On the one hand, this new technology simplifies the manufacturing process due to the simple laminating process. On the other hand, it can improve the performance of the composite in the thickness direction with good damage tolerance and impact resistance. This article describes different braiding techniques and manufacturing processes useful for composites, discusses some of the basic factors that affect the braiding and impregnation processes, and summarizes the potential for different reinforcing geometries.