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首页> 外文期刊>The Journal of the Textile Institute >A novel plied yarn structure with negative Poisson's ratio
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A novel plied yarn structure with negative Poisson's ratio

机译：具有负泊松比的新型合股纱结构

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摘要

This article presents an experimental and geometrical study of a novel kind of plied yarn structure with negative Poisson's ratio (NPR). The deformation mechanism of the yarn structure formed with two stiff yarns and two soft yarns to achieve NPR behavior was firstly introduced. Based on the proposed yarn structure, four kinds of yarn samples were then fabricated with two kinds of stiff yarns and two types of soft yarns and tested under the axial extension to verify their auxetic or NPR effect. A geometric analysis was finally conducted to theoretically calculate the Poisson's ratio of the yarn structure and compared with the experimental results. The study shows that the proposed yarn structure has obvious NPR effect and the geometrical analysis can well predict its Poisson's ratio in the higher axial strain range. It is expected that this study could promote further development of auxetic textiles with unusual behavior.
机译：本文介绍了一种新型的负泊松比（NPR）的合股纱线结构的实验和几何研究。首先介绍了由两条硬纱和两条软纱形成的纱线结构的变形机理，以实现NPR性能。基于所提出的纱线结构，然后用两种硬挺纱线和两种软纱线制造四种纱线样品，并在轴向延伸下进行测试，以验证它们的膨胀或NPR效果。最后进行几何分析，从理论上计算出纱线结构的泊松比，并与实验结果进行比较。研究表明，所提出的纱线结构具有明显的NPR效应，并且几何分析可以很好地预测其在较高轴向应变范围内的泊松比。可以预期，这项研究可以促进具有异常行为的增塑纺织品的进一步发展。

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