三维机织复合材料力学性能研究进展

Research progress on mechanical properties of 3D woven composites

三维机织复合材料具有结构可设计性强、复杂构件整体近净成型、冲击损伤容限高等优点,成为航空航天领域新材料研制关注的重点。近年来,三维机织复合材料的结构设计、细观建模、性能分析等得到了快速的发展,并取得了实质性成果。多轴向机织结构的开发,精细化建模研究,自动化连续生产是三维机织复合材料的发展趋势。本文介绍了典型的三维机织预制体的结构特点,对比分析了不同预制体结构的三维机织复合材料的准静态力学性能,回顾了三维机织复合材料的细观结构建模、理论分析和数值模拟等方面的研究进展,列举了三维机织复合材料在航空航天领域的典型应用,为三维机织复合材料应用研究提供参考。

The three-dimensional(3D)woven composites have the advantages of strong structural design ability,overall near-net shape of complex components and high impact damage tolerance,and have become the focus of the development of new materials in the aerospace industry.In recent years,the structural design,micro-modelling and performance analysis of 3D woven composites have been rapidly developed and achieved substantial achievement.The development of multi-axial woven structures,fine modeling,and automated continuous production are the development trends of 3D woven composites.In this paper,the structural characteristics of typical 3D woven preforms were introduced.The quasi-static mechanical properties of 3D woven composites with different structures were discussed.The research progress of the micro-structure modelling,theoretical analysis and numerical simulation of 3D woven composite materials were reviewed.The typical applications of 3D woven composite materials in aerospace were listed,which can provide reference for the application research of 3D woven composite materials.