玻璃钢/复合材料 ›› 2018, Vol. 0 ›› Issue (10): 76-81.

• 应用研究 • 上一篇    下一篇

复合材料增强用经编网格结构的性能对比

邵慧奇1, 李建娜1, 邵光伟1, 陈南梁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:2018-07-20 出版日期:2018-10-28 发布日期:2018-10-28
  • 通讯作者: 蒋金华(1978-),男,副教授,博士,主要研究方向为产业用纺织品、特种编织织造技术与复合材料, jiangjinhua@dhu.edu.cn。
  • 作者简介:邵慧奇(1990-),男,博士研究生,主要研究方向为航空航天用特种纺织材料。
  • 基金资助:
    国家自然科学基金资助项目(11472077,U1537213);中央高校基本科研业务费专项资金项目(2232018G-06);中国纺织工业联合会应用技术研究项目(J201507)

PERFORMANCE COMPARISON OF TYPICAL WARP KNITTED MESHES FOR COMPOSITE REINFORCEMENT

SHAO Hui-qi1, LI Jian-na1, SHAO Guang-wei1, CHEN Nan-liang1,2   

  1. 1.College of Textile, Donghua University, Shanghai 201620, China;
    2.Engineering Research Center of Textile Technical Education Ministry, Shanghai 201620, China
  • Received:2018-07-20 Online:2018-10-28 Published:2018-10-28

摘要: 经编网格织物被广泛应用于刚性、半刚性及柔性增强结构材料中,为满足不同工程应用的性能需求,设计制备了矩形、方形、圆形、菱形四种典型经编网格织物,并分别测试和对比了其厚度、面密度、孔隙率、顶破性能、单向拉伸性能和双向拉伸性能。研究结果显示:菱形经编网格织物的厚度最小,且孔隙率最高(77.9%);方形经编网格织物的弯曲刚度最小,最为柔软;四种经编网格织物的顶破性能差异不显著;双向拉伸时,经编网格织物更趋于各向同性,其中菱形经编网格织物的正交各向异性水平最低(λ=0.046),矩形经编网格织物的正交各向异性最显著(λ=0.303)。

关键词: 经编网格, 力学性能, 单向拉伸, 双向拉伸, 各向同性

Abstract: The warp knitted fabrics have been widely used as structural reinforcement of rigid, semi-rigid and flexible composite materials. In order to meet the performance requirements of different engineering applications, four typical warp knitted meshes of rectangular, square, circular and diamond were designed and developed. Their thickness, weight density, porosity, bursting, uniaxial and biaxial tensile properties were tested and compared in this research. The results show that the thickness of the diamond warp knitted mesh is the smallest and its porosity is the highest (77.9%). The square warp knitted mesh is tested to be softest with the smallest bending stiffness. The bursting strength of these four mesh fabrics does not differ significantly. The biaxial tensile behavior of warp knitted meshes tends to be more isotropic, in which the anisotropy level of diamond warp knitted mesh is the lowest (λ=0.046), while the rectangular one is the most anisotropic (λ=0.303).

Key words: warp knitted mesh, mechanical performance, uniaxial tension, biaxial tensiin, isotropy

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