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

机译：确定瓜形竹纤维横截面积的建议方法

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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：本文总结了一项旨在开发确定瓜杜鹃竹纤维截面积的方法的研究。该方法包括使用商业软件将纤维浸入树脂中，进行表面处理，采集和分析光学显微照片。将测量面积与从通常用于天然纤维的标准重量分析方法获得的其他值进行比较，该方法显示出计算面积之间的实质差异。使用数据分布函数对随机样本进行两种方法的分析，然后进行分析以确定其统计优度。对纤维直径分布的分析表明，它们的对数正态分布函数很好地描述了它们。此外，标准的重量分析方法往往会高估纤维的横截面积，平均值为15％，这在确定某些机械性能（例如拉伸强度和弹性模量）时可能会导致相似的幅度差异。

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