Mechanical and Vibration Properties of Epoxy Composites Reinforced with Sisal, Areca, and Hemp Fibers, Enhanced by Sugarcane Bagasse and Coconut Husk Fillers

This study investigates the mechanical and vibration properties of epoxy composites reinforced with agricultural waste fibers, focusing on coconut husk and sugarcane bagasse fillers. Experimental procedures involve fabricating composite specimens with different stacking sequences and filler compositions, followed by mechanical testing including tensile, flexural, and impact tests. Additionally, free vibration tests are conducted to evaluate the damping capacity of the composites. Results indicate that coir-reinforced composites exhibit superior mechanical properties compared to other formulations, particularly in terms of flexural strength and impact resistance. Furthermore, specific compositions, such as C₁ (SCHCHCACACS) and C₃ (SCHCACACHCS), demonstrate exceptional performance in various mechanical tests. Additionally, S₂ (SSASHSHSASS) exhibits a higher damping constant, indicating its potential for vibration resistance. These findings highlight the promising attributes of coir-reinforced epoxy composites for diverse applications, suggesting avenues for further research and practical implementation in sustainable material development.