The effect of repeated low-velocity impact (LVI) loading on the dynamic properties of pure carbon, pure basalt, and intra-ply hybrid fibers was studied. Composites made of pure carbon, pure basalt, and their intra-ply hybrids with an epoxy matrix were fabricated using the Vacuum Assisted Resin Infusion Molding (VARIM) method and tested under repeated drop impacts. Equal energy diagrams were developed to determine the number of impacts required to reach the penetration threshold. Contact force vs. time and deflection curves were generated for Carbon Fiber Reinforced Polymer Composites (CFCs), Basalt Fiber Reinforced Polymer Composites (BFCs), and Carbon/Basalt Fiber Reinforced Composites (CBFCs) at varying impact counts. Key dynamic properties, including maximum contact force, impact duration, total impulse, bending stiffness, and absorbed rebound energy, were analyzed. According to the results, BFC, CBFC, and CFC composites had the highest to lowest impact resistance, respectively, emphasizing the superior suitability of basalt fibers for applications requiring enhanced impact resistance. Additionally, BFC composites exhibited penetration thresholds approximately five times higher than CFC composites, while hybrid composites demonstrated intermediate resistance levels.
