Tensile deformation of a flax fiber

被引：141

作者：

Charlet, K. ^{[1
]}

Eve, S. ^{[1
]}

Jernot, J. P. ^{[1
]}

Gomina, M. ^{[1
]}

Breard, J. ^{[2
]}

机构：

[1] CNRT Mat, ENSICAEN, ESCTM CRISMAT, Caen, France

[2] Univ Havre, LOMC, F-76058 Le Havre, France

来源：

MESOMECHANICS 2009 | 2009年 / 1卷 / 01期

关键词：

flax; mechanical properties; morphology; microfibril angle; BEHAVIOR;

D O I：

10.1016/j.proeng.2009.06.055

中图分类号：

O3 [力学];

学科分类号：

08 ; 0801 ;

摘要：

In this paper we investigate the tensile properties of a natural composite material: the flax fiber. The beginning of the stress-strain curve of a flax fiber upon tensile loading appears markedly non-linear. The hypothesis of a progressive alignment of the cellulose microfibrils with the tensile axis provides a quantitative explanation of this departure from linearity. This hypothesis is confirmed by the similar behavior which characterises hemp and ramie fibers. Besides, it has long been recognized that the natural character of flax fibers induces a large scatter of their mechanical properties. This scatter is shown not to be associated with the pronounced cross-section size variation observed along the fiber profiles. Two fiber size measurement methods are compared in order to check their influence on the property scatter and the decrease of the fiber mechanical properties as a function of the fiber diameter. (C) 2009 Elsevier B. V. All rights reserved

引用

页码：233 / 236

页数：4

共 10 条

[1]

[Anonymous], HDB FIBER CHEM

[2] Analysis of the flax fibres tensile behaviour and analysis of the tensile stiffness increase [J].