4.4 Article

Fatigue behaviour of Kevlar/carbon/basalt fibre-reinforced SiC nanofiller particulate hybrid epoxy composite

Journal

E-POLYMERS
Volume 23, Issue 1, Pages -

Publisher

DE GRUYTER POLAND SP Z O O
DOI: 10.1515/epoly-2023-0048

Keywords

natural fibre; synthetic fibre; silicon carbide; fatigue analysis; Scanning electron microscope morphology

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Conducting research on the behavior of natural fibre composites under cyclic loading is crucial for ensuring mechanical durability. This study focuses on fabricating composite laminates using a hybridization effect of natural and synthetic fibres, and quantifying the impact of SiC filler combined with fibre reinforcement and epoxy matrix under cyclic loading. The results show that increasing the amount of SiC nanofillers greatly improves the fatigue life of the hybrid composite, with identified failure modes including porosity, matrix crack and laminate bonding strength.
It is vital to conduct research on the behaviour of natural fibre composites under cyclic loading in order to have confidence in the mechanical durability. During this study, the fabrication of composite laminates will be carried out by the hybridization effect of natural and synthetic fibres. Quantifying the impact that the SiC filler (10, 20, and 30 g) has when combined with the fibre reinforcement and epoxy matrix (275 g) under cyclic loading circumstances and determining the significant sequence of hybrid composites are the goals of this research. The results of the tensile mode were used to determine the input parameters, and based on the tensile strength of the hybrid composite, 70% of the tensile strength was fixed at 3 Hz frequency as the input for fatigue analysis. The life span was then determined for the hybrid composite. The results of this fatigue test showed that increasing the amount of SiC nanofillers produced a very high potential output for the fatigue test. As a result of increasing the amount of silicon carbide fillers from 10 to 30 g, sample S3 was able to significantly tolerate 65% more life. Failure mode can be identified from scanning electron microscope analysis revealing the major porosity, matrix crack, and laminate bonding strength that causes the failure during fatigue analysis.

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