| Abstract Scope |
Hybrid composites combining synthetic and natural fiber fabrics have gained attention in engineering, automotive, and defense applications due to their low cost, reduced density, good mechanical properties, and ease of processing. Epoxy resin, widely used as a matrix, offers excellent physicochemical properties and enhances interfacial adhesion between fibers, improving structural performance.
This study analyzes, using ANOVA and Tukey’s test, the ballistic behavior of epoxy matrix composites reinforced with different proportions of carbon fiber and sisal fabric as a sustainable solution for lightweight ballistic protection. Ballistic tests with 9 mm ammunition and Doppler radar measured projectile velocities before and after impact to calculate absorbed energy and estimate the non-penetration limit velocity.
The results indicated that carbon fiber increased stiffness and energy dissipation, while sisal reduced ballistic performance but improved cost, weight, and sustainability. The combination of both fibers was key to optimizing the composite’s ballistic performance. |