Abstract
Abstract Natural fiber-reinforced composites are getting more attention from researchers and manufacturing companies to replace metals and synthetic materials that have dominated the manufacturing industries. In this study, the mechanical properties of unidirectional (UD) flax roving-reinforced composites and woven fabric-reinforced composites were investigated. Three different composites were prepared from flax rovings, which have the same linear density and epoxy resin matrix, with different reinforcement and composite preparation methods. The samples were subjected to experimental tests of flexural rigidity and tensile strength in a parallel and perpendicular direction to fiber orientation. The test results showed that flexural rigidity and tensile strength of flax fiber-reinforced composites are highly dependent on the direction of fiber orientation. The results also reveal that in a parallel direction to fiber orientation, UD composites have higher flexural rigidity and tensile strength than woven fabric-reinforced composite.
Highlights
A composite material is defined as a material consisting of two or more constituent materials with different chemical and physical properties in which the property of the final composite is intended to be better than the component materials [1,2,3]
Experimental test results conducted for flexural rigidity and tensile strength experimental tests of composites are presented in Tables 1 and 2
The composite sample reinforced with sateen weave fabric has 28.47% and 13.07% lower ability to withstand flexural stress in comparison to UD composite reinforced by 14 rovings/cm and 10 rovings/cm respectively in the direction of fiber orientation (Figure 5), this illustrates UD reinforced flax composites have higher bendable property than woven-reinforced composites
Summary
A composite material is defined as a material consisting of two or more constituent materials (reinforcement and matrix) with different chemical and physical properties in which the property of the final composite is intended to be better than the component materials [1,2,3]. Flax fiber-reinforced composite is one from natural fiber textile-reinforced composites, which is getting more attention from manufacturing industries and researchers due to its unique properties, including cost-effectiveness, low density, good specific strength, good bio-degradability, and environment-friendly material [3, 5, 7,8,9,10]. These properties widely spread the usage of flax fiber-reinforced composites in the aerospace, civil engineering, automotive, and many other industries [8, 10, 11]
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