Diameter dependence of tensile strength by Weibull analysis: Part II jute fiber

Materia

Lopes, F.P.D.¹  Silva, I.L.A. Da¹  Monteiro, S.N.¹  Bevitori, A. B.¹ 

[1] State University of the Northern Rio de Janeiro, Campos dos Goytacazes, Brazil

关键词: Jute fiber;    tensile properties;    diameter dependence;    Weibull analysis;    fracture study.;   

DOI  :  10.1590/S1517-70762010000200005

学科分类：工程和技术（综合）

来源: Universidade Federal do Rio de Janeiro * Coordenacao dos Programas de Pos-Graduacao de Engenharia

【 摘 要 】

The jute fiber is one of the strongest lignocellulosic fibers with applications ranging from simple items such as fabrics and ropes to engineering composites for automobile parts and building panels. Like other lignocellulosic fibers, the jute may have an inverse strength dependence with its diameter. In principle, thinner jute fiber could be comparatively stronger and consequently more effective as a composite reinforcement. Therefore, an attempt to correlate the jute fiber strength obtained in tensile test with its corresponding diameter, precisely measured by means of a profile projector, was carried out. A Weibull statistical analysis confirmed the inverse dependence between the jute fiber tensile strength and the corresponding fiber diameter. Scanning electron microscopy observation of the fracture of selected ruptured fiber revealed possible mechanisms that could justify the strength/diameter inverse dependence.

【 授权许可】

CC BY