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首页> 外文期刊>The Journal of the Textile Institute >The use of micro-computed tomography to determine the fabric cross-sectional area and stress
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The use of micro-computed tomography to determine the fabric cross-sectional area and stress

机译：使用微计算断层扫描来确定织物横截面积和应力

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摘要

Accurate measurement of the cross-sectional area of porous fabric is quite important to determine fabric strength. Many models using yarns cross-section were built to calculate the strength of woven and knitted fabrics, and the spaces between fibres in the yarns were always considered to be part of the cross-sectional area. In our previous study, using micro-computed tomography (CT) and reconstructed three-dimensional (3D) images and based on the evaluation of the pore diameter distribution across the thickness direction, a new method was established to accurately determine the fabric 'surface' and fabric thickness. In this study, we used this method to calculate the cross-sectional area of fabrics and the resulting fabric stress. Using a plain weave and a flat knit fabrics showed that the cross-sectional areas in warp (or wale) and weft (or course) directions of the fabrics change regularly based on fabric structures and yarns. The fabric stress, when calculations were based on the least cross-sectional area, were greater than that calculated based on the other methods, such as the stress calculated based on the Peirce yarn model, where yarns are regarded as solid cylinders. Other research and properties related to the fabric thickness and cross-sectional areas will benefit from this accurate determination.
机译：精确测量多孔织物的横截面积对于确定织物强度非常重要。使用纱线横截面的许多模型来计算编织和针织织物的强度，并且纱线中的纤维之间的空间总是被认为是横截面积的一部分。在我们以前的研究中，使用微计算机断层扫描（CT）和重建的三维（3D）图像并基于对厚度方向上的孔径分布的评估，建立了一种新方法，以准确地确定织物'表面'和织物厚度。在这项研究中，我们使用该方法计算织物的横截面积和所得织物应力。使用平纹织物和扁平针织织物表明，基于织物结构和纱线定期改变织物的经纱（或阀门）和纬纱（或过程）方向的横截面区域。当计算基于最小横截面积时，织物应力大于基于其他方法计算的，例如基于Peirce纱线模型计算的应力，其中纱线被视为固体圆柱体。与织物厚度和横截面积相关的其他研究和性质将受益于这种准确的测定。

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