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Proposed Method for Determining Cross-Sectional Area of Guadua angustifolia Bamboo Fibers

机译：确定瓜杜瓦古氏竹纤维的横截面积的方法

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摘要

This paper summarizes a research aimed to develop a methodology for determining the cross-sectional area of Guadua angustifolia bamboo fibers. The method includes the immersion of fibers into a resin, surface preparation, acquisition, and analysis of optical micrographs using commercial software. Measured areas were compared with other values obtained for thereof, from a standard gravimetric methodology commonly used on natural fibers, which showed substantial differences among calculated areas. Random samples were subjected to both methods using data distribution functions, and the analysis was carried out to determine their statistical goodness. Analysis of fibers diameter distributions reveals they are very well described by a lognormal distribution function. Furthermore, standard gravimetric methods tend to overestimate the fibers' cross-sectional area in an average value of 15%, which could result in similar magnitude differences on the determination of some mechanical properties such as the tensile strength and the modulus of elasticity.
机译：本文总结了一项研究，旨在制定用于确定瓜杜瓦古氏竹纤维的横截面积的方法。该方法包括使用商业软件将纤维浸入树脂，表面制备，采集和分析的光学显微照片中。将测量区域与其其它值与其常用于天然纤维的标准重量法进行比较，这在计算区域之间显示出显着差异。使用数据分布函数进行随机样品进行两种方法，进行分析以确定其统计良好。纤维直径分布的分析显示它们非常良好地描述了Lognormal分布函数。此外，标准的重量方法倾向于以平均值为纤维的横截面积，平均值为15％，这可能导致类似的幅度差异，测定一些机械性能，例如拉伸强度和弹性模量。

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