复合材料科学与工程 ›› 2014, Vol. 0 ›› Issue (8): 5-10.

• 基础研究 •    下一篇

展纱织物细观几何模型

李蓓蓓1, 李炜1,2   

  1. 1.东华大学纺织学院,上海 201620;
    2.产业用纺织品教育部工程研究中心,上海 201620
  • 收稿日期:2014-03-04 出版日期:2014-08-28 发布日期:2021-09-13
  • 作者简介:李蓓蓓(1992-),女,硕士,主要从事展纱织物复合材料方面的研究。

A MICROGEOMETRIC STRUCTURAL MODEL FOR SPREAD TOW FABRIC

LI Bei-bei1, LI Wei1,2   

  1. 1. School of Textile, Donghua University, Shanghai 201620, China;
    2. Engineering Research Center of Technical Textiles, Ministry of Education, Donghua University, Shanghai 201620, China
  • Received:2014-03-04 Online:2014-08-28 Published:2021-09-13

摘要: 在合理的假设基础上,通过建立的展纱织物增强结构二维几何结构模型,预测展纱织物内纤维束屈曲状态,建立展纱织物复合材料的纤维体积分数的理论公式,分析纤维束屈曲率与纤维体积含量之间的关系。理论计算结果与实测值的比较,表明所提出的细观几何模型是合理的。

关键词: 展纱, 几何结构, 单元体, 屈曲, 纤维体积分数

Abstract: Based on reasonable geometric hypothesis, a two-dimensional geometric structural model of STF composite is proposed. Crimp of fiber tows in the STF can be predicted. An equation of fiber volume fraction of STF composite is also set up, and variation of fibre volume fraction with fiber crimp percentage is analysed. Comparison of the resulting analytical predictions with experimental results shows that the proposed model is valid.

Key words: tow spreading, geometric structure, unit cell, crimp, fiber volume fraction

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