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Effect of Stitches on the Permeability of Interbundle Channels in Stitched Fabrics

机译:缝合对缝合织物中束间通道渗透性的影响

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摘要

Stitched multilayer fabrics have drawn increasing attention as reinforcing materials for high performance composites due to their integrity and wide variety. In this paper, the focus is on the effect of stitches on the equivalent permeability of interbundle channels, which is investigated systematically through numerical simulation of Navier-Stokes equations and expressed as the value of K/K_0. The results show that stitches may dramatically affect the permeability of interbundle channels, even if stitch size is relatively small. Thus, this effect has to be considered when establishing an effective permeability model for stitched fabrics. The numerical simulation results also suggest that the effect of stitches is quite different for a different stitch size, off-center position, slope, array, distribution density, and average Darcy velocity in fiber bundles. Changes in K/K_0 with these parameters are discussed.
机译:缝合多层织物由于其完整性和多样性而作为高性能复合材料的增强材料已引起越来越多的关注。本文的重点是针脚对束间通道等效渗透率的影响,这是通过Navier-Stokes方程的数值模拟系统研究的,并表示为K / K_0的值。结果表明,即使针迹尺寸较小,针迹也可能极大地影响束间通道的渗透性。因此,在建立缝制织物的有效渗透性模型时必须考虑这种影响。数值模拟结果还表明,对于不同的线迹尺寸,偏心位置,斜率,阵列,分布密度和纤维束中的平均达西速度,线迹的影响是完全不同的。讨论了这些参数下K / K_0的变化。

著录项

  • 来源
    《Textile Research Journal》 |2003年第8期|p.691-699|共9页
  • 作者

    JINLIAN HU; YI LIU; XUEMING SHAO;

  • 作者单位

    Institute of Textiles and Clothing, The Hong Kong Polytechnic University, Hung Hom, Kowloon, Hong Kong;

  • 收录信息 美国《科学引文索引》(SCI);美国《工程索引》(EI);美国《生物学医学文摘》(MEDLINE);
  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类 纺织工业、染整工业;
  • 关键词

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