中国空间科学技术

中国空间科学技术

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纺织结构复合材料的纺织几何学模型

沈怀荣,吴德隆   

  1. 指挥技术学院!北京101416,北京宇航系统工程设计部!北京100076
  • 发布日期:2000-04-25

Textile Geometry Model for Textile Structural Composites

Shen Huairong (Institute of Command and Technology,Beijing 101416) Wu Delong (Design Department of Astronautical System Engineering of Beijing,Beijing 100076)   

  • Online:2000-04-25
  • Supported by:
    中国航天工业总公司资助项目

被引次数

35

摘要： 提出一种分析纺织结构复合材料力学性能的模型——纺织几何学模型。该模型由分析单细胞的纤维束几何特征入手 ,考虑纤维束的曲率、非圆形截面形状、纤维纱之间相互纽结等因素 ,建立本构模型。以三维编织结构复合材料为例 ,进行了理论预测并与实验结果进行了比较 ,结果比较满意。该模型为建立纺织结构复合材料统一的分析方法和分析软件奠定了基础

关键词: 纤维增强复合材料, 纺织工艺, 力学性能, 几何学

Abstract: A general Textile geometry modelis presented for the elastic analysis of textile structural composites.The geometrical characteristics of the yarns in the unit cells are considered and based on fiber undulation and continuity in three dimensional space,actual cross sectional geometry of the yarn and the influence of mutual tangle between yarn,the model is established.A unified analytical method and software is obtained by using the model.The theoretical predicted values are compared with the experiments for 3D braid structural composites.The result are fairly good for selected test specimens.