ON THE MEASUREMENT OF CROSS-SECTIONAL AREA OF NATURAL FIBERS | Zendy

Otávio da Fonseca Martins Gomes | Zendy; Felipe Pinheiro Teixeira | Zendy; Josimar Firmino de Lima | Zendy; Flávio de Andrade Silva | Zendy

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ON THE MEASUREMENT OF CROSS-SECTIONAL AREA OF NATURAL FIBERS

Author(s) -

Otávio da Fonseca Martins Gomes,

Felipe Pinheiro Teixeira,

Josimar Firmino de Lima,

Flávio de Andrade Silva

Publication year - 2018

Publication title -

proceedings of the 4th brazilian conference on composite materials

Language(s) - English

Resource type - Conference proceedings

DOI - 10.21452/bccm4.2018.10.10

Subject(s) - materials science , perpendicular , composite material , ultimate tensile strength , modulus , fiber , microscope , optics , mathematics , physics , geometry

The measurement of cross-sectional area of natural fibers is fundamental in the determination of their mechanical properties. Several authors investigated the mechanical behavior of natural fibers and reported, for samples of same species, different values for tensile strength and elastic modulus. This variability can be due to many factors, such as plant variability, damage during processing or cutting, testing conditions and accuracy. This work presents a method for the measurement of cross-sectional area natural fibers that guarantees the dimensional integrity of the fiber and in which the measurement is performed on a plane perpendicular to its longitudinal axis. It comprises sample preparation, image acquisition on a reflected light microscope, and image analysis using the open source software Fiji/ImageJ. The method was applied to curaua, hemp, and sisal samples.

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