Mechanical Characterization of Unidirectional Diss Fibre-Reinforced Epoxy

Abstract

As industries increasingly adopt composites for their superior stress resistance, the high cost and environmental challenges associated with their disposal remain significant concerns. Bio-composites offer a sustainable alternative by addressing these issues with better recyclability and lower environmental impact. This study explores the mechanical performance of a bio-composite featuring Diss fibres embedded in an epoxy matrix. We conducted tensile and Charpy impact tests to measure Young's modulus and impact energy, respectively. Different weight percentages of Diss fibres (wtD%) were used to prepare the specimens. The findings indicate that the Young's modulus of the bio-composite peaked at 1.30GPa with 20wtD%, beyond which it decreased. The incorporation of Diss fibres notably enhanced the tensile strength of the samples compared to the pure epoxy matrix. Additionally, impact energy increased with higher wtD%, reaching a maximum of 3.5J at 30wtD%. These results suggest that Diss fibres are a viable reinforcement material for developing greener composites.