This present investigation deals the role of surface functionalized crystalline nano-silica addition into epoxy resin on fatigue, fracture toughness and drop load impact damage behaviour with various stacking sequence of E-glass fibre. The main objective of this current investigation was revealing the importance of surface-functionalized crystalline nano-silica particle in E-glass fibre reinforced epoxy composite. Crystalline nano-silica of 20nm and E-glass fibre of 600 GSM was used as reinforcements. Both the particles and fibre was surface-functionalized using 3-Aminopropyletrimethoxyle (APTMS) via wet solution method. The hybrid composites were prepared via hand layup technique with different fibre stacking sequence. The mechanical results revealed that fibre pattern of L-A-L with 1.0vol.% of nano-silica gave highest tensile and flexural strength. The fatigue results revealed that the addition of 0.5 vol.% crystalline nano-silica into glass-epoxy composite (ES₁) gives highest fatigue life cycle of 38544 in 50% of tensile stress. Similarly, the fracture toughness results revealed that a highest fracture toughness of 31.5 MPa was observed for composite designation ES₂. The composite, which contains 1.0vol.% of surface functionalized crystalline nano-silica with L-A-L fibre pattern gives very high drop load impact resistance. Thus for high strength structural applications, automobile, aircraft and sports related applications these composites could be more suitable and replaced.

本研究探讨了在电子玻璃纤维的各种堆叠顺序下，表面官能化的结晶纳米二氧化硅添加到环氧树脂中对疲劳，断裂韧性和跌落载荷冲击破坏行为的作用。这项当前研究的主要目的是揭示表面功能化的结晶纳米二氧化硅颗粒在电子玻璃纤维增​​强环氧复合材料中的重要性。使用20nm的结晶纳米二氧化硅和600 GSM的E-玻璃纤维作为增强材料。使用3-氨基丙基三甲氧基（APTMS）通过湿溶液法将颗粒和纤维表面官能化。杂化复合材料是通过手工铺层技术制备的，具有不同的纤维堆积顺序。力学结果表明，LAL的纤维形态为1.0vol。％的纳米二氧化硅给出最高的拉伸强度和挠曲强度。疲劳结果表明，向玻璃-环氧树脂复合材料（ES中添加了0.5 vol。％的结晶纳米二氧化硅₁）在50％的拉应力下给出了38544的最高疲劳寿命周期。类似地，断裂韧性结果表明，对于复合名称ES ₂观察到最高的断裂韧性为31.5 MPa 。该复合材料包含1.0vol。％的具有LAL纤维图案的表面功能化结晶纳米二氧化硅，具有非常高的抗落载荷冲击性能。因此，对于高强度结构应用，汽车，飞机和体育运动相关的应用，这些复合材料可能更适合并被替换。