Statistical and Experimental Analysis of the Mechanical Properties of Flax Fibers

ABSTRACT

In this paper, 400 flax fibers with 10 different lengths (40 fibers at each length) are experimentally characterized (quasi-static tensile behavior) and then the results are statistically analyzed. The quasi-static tensile test results appeared to have a large dispersion, which makes it possible to measure the degree of variability in the ultimate tensile strength (UTS), failure strain, and the Young’s modulus of the fiber, at different gage lengths (10 mm to 500 mm). The variation in mechanical properties at each fiber length is established using two and three Weibull statistics based on maximum likelihood estimation (ML) and least square estimation (LS). Finally, all 10 groups for each tensile property are analyzed by one-way (ANOVA).

抽象

本文对40根亚麻纤维的准静态拉伸性能进行了实验表征并对结果进行了统计分析. 准静态拉伸测试结果似乎有很大的分散性这使得测量纤维在不同规格长度(10毫米到500毫米)下的极限拉伸强度(UTS)破坏应变和杨氏模量的可变性程度成为可能.利用基于最大似然估计(ML)和最小二乘估计(LS)的二威布尔统计量和三威布尔统计量建立了各纤维长度处力学性能的变化. 最后对每种拉伸性能的所有10组进行单因素分析(ANOVA).

KEYWORDS:

• Natural fiber
• flax fiber
• quasi-static tensile
• statistical properties/methods

关键词:

• 天然纤维
• 亚麻纤维
• 准静态拉伸
• 统计特性/方法

Acknowledgments

The authors gratefully acknowledge (la Direction Générale de la Recherche Scientifique et du Développement Technologique, Algerie) DGRSDT for their support in this work.