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首页> 外文学位 >THE MECHANICAL BEHAVIOR OF FABRICS HAVING THREE, NONORTHOGONAL THREAD DIRECTIONS (TRIAXIAL) AND THE EQUIVALENCE OF CONVENTIONAL FABRICS.
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THE MECHANICAL BEHAVIOR OF FABRICS HAVING THREE, NONORTHOGONAL THREAD DIRECTIONS (TRIAXIAL) AND THE EQUIVALENCE OF CONVENTIONAL FABRICS.

机译：具有三个，非正交螺纹方向（三轴方向）的织物的机械行为与常规织物的等效性。

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摘要

A geometrical model of a triaxial unit cell is defined and used to describe equivalent triaxial and conventional structures in the areas of cover factor, fabric weight and thread interlacings. The model is used to extend a classical analysis due to Peirce and Grosberg to the case of triaxial fabrics. Further, a theoretical strain energy analysis of the triaxial model is proposed.;Experimental analysis, using a specially constructed apparatus, shows the extension of the Peirce-Grosberg analysis to be generally suitable for predicting fabric modulus during crimp removal under biaxial loading for open, balanced triaxial weaves.;A selected triaxial fabric and equivalent weight plain and leno fabrics are subjected to ball burst and tear testing. The results of the ball burst tests show that the triaxial interlocking allows a great deal of yarn mobility and, in mode of failure, exhibits the same behavior as the plain fabric. For the tear test, a folded sample technique is used and discussed. Tear results confirm the added mobility of the triaxial structure over the leno weave but, in this mode, show the mobility to be less than that of the plain interlacing. The tear results also show an inherent anisotropy due to the nonorthogonality of the yarn sets.;The topological nature of the triaxial interlocking is examined and compared with that of plain weave and, for the first time, with the simple leno interlacing. The triaxial structure is shown to exhibit properties of both weaves allowing, in some measure, comparison with each.
机译：定义了三轴晶胞的几何模型，并用于在覆盖系数，织物重量和线交织领域描述等效的三轴和常规结构。该模型用于将Peirce和Grosberg的经典分析扩展到三轴织物的情况。进一步，提出了三轴模型的理论应变能分析。;使用特殊构造的设备进行的实验分析表明，Peirce-Grosberg分析的扩展通常适用于预测在双轴载荷下的卷边去除过程中织物模量的模量。平衡的三轴编织。;对选定的三轴织物以及等效重量的平纹和纱罗织物进行爆破和撕裂测试。球爆试验的结果表明，三轴互锁可实现很大的纱线移动性，并且在破坏模式下表现出与平纹织物相同的性能。对于撕裂测试，使用并讨论了折叠样品技术。撕裂结果证实了三轴结构在纱罗编织上的增加的迁移率，但是在这种模式下，表明迁移率小于普通交织的迁移率。由于纱线组的非正交性，撕裂结果还显示出固有的各向异性。检验了三轴互锁的拓扑性质，并将其与平纹组织的拓扑性质进行了比较，并且首次将其与简单的纱罗交织进行了比较。三轴结构显示出两种编织的特性，从而可以在某种程度上与它们进行比较。

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  • 作者

    SCHWARTZ, PETER.;

  • 作者单位

    North Carolina State University.;

  • 授予单位 North Carolina State University.;
  • 学科 Textile Technology.
  • 学位 Ph.D.
  • 年度 1981
  • 页码 99 p.
  • 总页数 99
  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类
  • 关键词

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