Experimental investigation of glass-carbon/epoxy hybrid composites subjected to low velocity impact test

Abstract

Hybrid composites with multiple reinforcements of high strength are very popular for many engineering applications, especially for impact resistance. In the present work, we report the development of the glasscarbon/ epoxy hybrid composites using hand lay technique and investigate its low velocity impact response. Low velocity impact tests were performed on the hybrid composites of two different thicknesses 2 mm and 4 mm to study the impact resistance of hybrid composites with respect to impact energy and impact velocity. In addition to this, defect was embedded in the hybrid composite and its effect on the impact response was studied and compared with the hybird composites without having any defect. The study revealed that the presence of defect in hybrid composite has significant effect on the energy absorbed when compared to that of composite without defect.

Keywords

• hybrid composites
• epoxy
• polymer-matrix composites
• impact behaviour
• low-velocity impact