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Sugarcane bagasse reinforced composites: Studies on the young’s modulus and macro and micro-mechanics

The stiffness of a material greatly influences its possible use as an engineering material. Thus, despite the theoretical environmental advantages of natural fiber reinforced composites, or fully biodegradable composites, if certain mechanical properties are not achieved, a material can have fewer engineering uses. In this work, sugarcane bagasse fibers, a by-product of the sugarcane-juice extraction process, were used to obtain reinforcing fibers. Two polyolefins, a polypropylene and a high-density polyethylene, and a starch-based polymer were used as matrices. The composite materials were prepared and tested to obtain their tensile properties such as the Young’s moduli. Some micromechanical models were used to obtain the intrinsic Young’s moduli of the fibers and the efficiency factors. The dependence of such parameters on the matrix and fibers characteristics was studied. The fiber orientation efficiency factor was used to compute the orientation angle of the fibers inside the composite under three different distributions. Finally, the Tsai and Pagano models, and the Halpin and Tsai equations were used to compute the theoretical values of the Young’s moduli of the composites

North Carolina State University. Dept of Wood Paper Science, College of Natural Resources

Author: Jiménez, A. María
Delgado Aguilar, Marc
Tarrés Farrés, Quim
Quintana, Germán
Fullana i Palmer, Pere
Mutjé Pujol, Pere
Espinach Orús, Xavier
Abstract: The stiffness of a material greatly influences its possible use as an engineering material. Thus, despite the theoretical environmental advantages of natural fiber reinforced composites, or fully biodegradable composites, if certain mechanical properties are not achieved, a material can have fewer engineering uses. In this work, sugarcane bagasse fibers, a by-product of the sugarcane-juice extraction process, were used to obtain reinforcing fibers. Two polyolefins, a polypropylene and a high-density polyethylene, and a starch-based polymer were used as matrices. The composite materials were prepared and tested to obtain their tensile properties such as the Young’s moduli. Some micromechanical models were used to obtain the intrinsic Young’s moduli of the fibers and the efficiency factors. The dependence of such parameters on the matrix and fibers characteristics was studied. The fiber orientation efficiency factor was used to compute the orientation angle of the fibers inside the composite under three different distributions. Finally, the Tsai and Pagano models, and the Halpin and Tsai equations were used to compute the theoretical values of the Young’s moduli of the composites
Document access: http://hdl.handle.net/2072/299654
Language: eng
Publisher: North Carolina State University. Dept of Wood Paper Science, College of Natural Resources
Rights: Tots els drets reservats
Subject: Fibres naturals
Natural fibers
Bagàs de canya
Bagasse
Resistència de materials
Strength of materials
Title: Sugarcane bagasse reinforced composites: Studies on the young’s modulus and macro and micro-mechanics
Type: info:eu-repo/semantics/article
Repository: Recercat

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