上海交通大学学报 ›› 2022, Vol. 56 ›› Issue (4): 464-473.doi: 10.16183/j.cnki.jsjtu.2020.419

• 船舶海洋与建筑工程 • 上一篇    下一篇

高性能平纹织物纱线抽出力学行为及其移动机制

陈建稳1(), 吴善祥1, 张若男1, 陈务军2, 范进1, 王明洋3   

  1. 1.南京理工大学 理学院, 南京 210094
    2.上海交通大学 空间结构研究中心, 上海 200030
    3.中国人民解放军陆军工程大学 工程兵工程学院, 南京 210007
  • 收稿日期:2020-12-09 出版日期:2022-04-28 发布日期:2022-05-07
  • 作者简介:陈建稳(1981-),男,副教授,主要从事轻型建筑膜结构、浮空器膜结构及材料性能研究;E-mail: Jianwench@yeah.net.
  • 基金资助:
    国家自然科学基金(51608270);江苏省基础研究计划(自然科学基金)(BK20191290);中央高校基本科研业务费专项资金(30920021143);中国博士后科学基金(2017T100371);中国博士后科学基金(2016M601816)

Behavior of Pull-Out and Movement Mechanisms of High-Performance Plain Weave Fabric Yarns

CHEN Jianwen1(), WU Shanxiang1, ZHANG Ruonan1, CHEN Wujun2, FAN Jin1, WANG Mingyang3   

  1. 1. School of Science, Nanjing University of Science and Technology, Nanjing 210094, China
    2. Space Structures Research Center, Shanghai Jiao Tong University, Shanghai 200030,China
    3. Engineering Institute of Corps of Engineers, Army Engineering University of PLA, Nanjing 210007, China
  • Received:2020-12-09 Online:2022-04-28 Published:2022-05-07

摘要:

为探究平纹织物纱线移动响应机制,以典型平纹机织织物为对象,进行多加载工况下纱线移动行为的数值模拟,系统考察摩擦因数、模型尺寸及预应力对纱线移动响应的影响规律,进而深入探讨了抽出纱线断裂长度、抽断强度、纱线间摩擦性能及基布所受预应力间的耦合关系.结果表明:该平纹机织织物峰值抽出载荷与摩擦因数、模型尺寸及预应力呈正相关,预应力由200 MPa增至700 MPa,峰值抽出载荷提升34.49%.纱线屈曲明显时,其抽出荷载提升明显.该机织织物纱线抽断强度随预应力及摩擦因数的增加逐渐增大,摩擦因数从0.1增至0.2时,纱线抽断强度增幅达16.48%.该机织织物纱线的抽断长度与实际所处应力环境相关,应力均匀化是纱线抽断长度增加的重要因素.

关键词: 平纹织物, 纱线抽出, 移动, 断裂, 摩擦因数

Abstract:

In order to study the movement mechanisms of plain weave fabric yarns, the numerical simulation of behavior of yarn pull-out and movement under various loading conditions was carried out on a typical plain-woven fabric. The effects of friction coefficients, model size, and pre-stress levels on yarn movement responses were analyzed in detail, and the coupling relation among pull-out length, pull-out fractured strength, and model parameter conditions, including friction coefficients and pre-stress levels were shown. The results indicate that positive correlations exist between peak pull-out loads and those main model parameters of plain weave fabrics, including the friction coefficients, model size, and pre-stress levels. As the pre-stress level rises from 200 MPa to 700 MPa, the peak pull-out load increases by 34.49%, and the existence of yarn crimps could lead to improvement of the pull-out loads. The pull-out fractured strength of yarns gradually increases with the growths of pre-stress levels and friction coefficients in the plain weave fabrics. Specifically, the pull-out fractured strength of yarns increases by 16.48% as the friction coefficient grow from 0.1 to 0.2. In addition, the pull-out fractured length of yarns of the plain-woven fabrics is highly dependent on the actual stress state, and the homogenization of the stress state is an important factor that influences the pull-out fractured length.

Key words: plain weave fabrics, yarn pull-out, movement, breakage, friction coefficient

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