NDLI: Damping Properties of Flax/Carbon Hybrid Epoxy/Fibre-Reinforced Composites for Automotive Semi-Structural Applications

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Damping Properties of Flax/Carbon Hybrid Epoxy/Fibre-Reinforced Composites for Automotive Semi-Structural Applications

Content Provider	MDPI
Author	Fairlie, George Njuguna, James
Copyright Year	2020
Description	The ever-increasing demand for environmentally friendly biocomposites for use in various engineering applications requires a strong understanding of these materials properties, especially in automotive applications. This study focused on investigating how the stacking sequence and fibre orientation impacts the damping properties of hybrid flax/carbon fibre-reinforced composites. Different hybrid carbon fibre/flax fibre-reinforced composites using epoxy resin as the matrix were manufactured using vacuum-assisted resin infusion moulding technique. Each composite material was then tested for tensile properties using a universal testing machine, and the damping experiment was conducted using an impulse hammer and a Laser Doppler Vibrometer. The tensile study found out that adding a flax layer to the external layers of carbon fibre laminate reduced Young’s modulus by 28% for one layer and 45% for two layers. It was noted that when the fibre orientation of the internal layer of [C/F2/C]s was replaced with two ±45° layers, this had a very little effect on Young’s modulus but reduced the ultimate tensile strength by 61%. This experimental study also showed that the most important layer when it comes to damping properties is the external layers. By adding an external flax layer into an epoxy/carbon fibre-reinforced composite considerably enhanced its damping ratio by 53.6% and by adding two layers increased it by 94%. The results indicated a high potential for the automotive semi-structural applications to improve damping properties of the vehicle.
Starting Page	64
e-ISSN	20796439
DOI	10.3390/fib8100064
Journal	Fibers
Issue Number	10
Volume Number	8
Language	English
Publisher	MDPI
Publisher Date	2020-10-08
Access Restriction	Open
Subject Keyword	Fibers Manufacturing Engineering Characterization and Testing of Materials Flax Fibre Carbon Fibre Epoxy Biocomposites Hybrid Composites Epoxy/fibre-reinforced Composites Tensile Properties Damping Properties Automotive Materials
Content Type	Text
Resource Type	Article

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