High-performance ballistic fibers, such as aramid fiber and ultra-high-molecular-weight polyethylene (UHMWPE), are commonly used in anti-ballistic structures due to their low density, high tensile strength and high specific modulus. However, their low modulus in the thickness direction and insufficient shear strength limits their application in certain ballistic structure. In contrast, carbon fiber reinforced epoxy resin matrix composites (CFRP) have the characteristics of high modulus in the thickness direction and high shear resistance. However, carbon fibers are rarely used and applied for protection purposes. A hybridization with aramid fiber reinforced epoxy resin matrix composites (AFRP) and CFRP has the potential to improve the stiffness and the ballistic property of the typical ballistic fiber composites. The hybrid effects on the flexural property and ballistic performance of the hybrid CFRP/AFRP laminates were investigated. Through conducting mechanical property tests and ballistic tests, two sets of reliable simulation parameters for AFRP and CFRP were established using LS-DYNA software, respectively. The experimental results suggested that by increasing the content of CFRP that the flexural properties of hybrid CFRP/AFRP laminates were enhanced. The ballistic tests’ results and the simulation illustrated that the specific energy absorption by the perforation method of CFRP achieved 77.7% of AFRP. When CFRP was on the striking face, the shear resistance of the laminates and the resistance force to the projectiles was promoted at the initial penetration stage. The proportion of fiber tensile failures in the AFRP layers was also enhanced with the addition of CFRP during the penetration process. These improvements resulted in the ballistic performance of hybrid CFRP/AFRP laminates was better than AFRP when the CFRP content was 20 wt% and 30 wt%.

芳纶纤维和超高分子量聚乙烯（UHMWPE）等高性能防弹纤维由于密度低、抗拉强度高、比模量高等特点，常用于防弹结构中。但是，它们的厚度方向模量低，剪切强度不足，限制了它们在某些防弹结构中的应用。相比之下，碳纤维增强环氧树脂基复合材料（CFRP）具有厚度方向模量高、抗剪强度高的特点。然而，碳纤维很少用于保护目的。芳纶纤维增强环氧树脂基复合材料 (AFRP) 和 CFRP 的混合有可能提高典型防弹纤维复合材料的刚度和防弹性能。研究了混合对混合 CFRP/AFRP 层压板的弯曲性能和防弹性能的影响。通过力学性能试验和弹道试验，分别利用LS-DYNA软件建立了AFRP和CFRP两组可靠的模拟参数。实验结果表明，通过增加 CFRP 的含量，混合 CFRP/AFRP 层压板的弯曲性能得到增强。弹道试验结果和模拟表明，CFRP穿孔法的比能量吸收达到了AFRP的77.7%。当CFRP在击打面上时，层合板的抗剪力和对弹丸的抵抗力在初始穿透阶段得到提升。在穿透过程中添加 CFRP 也提高了 AFRP 层中纤维拉伸失效的比例。这些改进导致当 CFRP 含量为 20 wt% 和 30 wt% 时，混合 CFRP/AFRP 层压板的防弹性能优于 AFRP。