纤维金属层板(Fiber metal laminates,FMLs)具有优异的综合力学性能,被广泛应用于航空航天和轨道交通等领域。FMLs在应用过程中会受到不同程度的冲击,相对于高速冲击而言,低速冲击产生的损伤大多肉眼不易觉察,但仍会造成裂纹、分层等不可逆的损伤,带来安全隐患。因此,对于FMLs低速冲击损伤的研究不容忽视。本文探讨分析了FMLs的低速冲击损伤机制、影响因素及提高抗低速冲击性能的方法,总结论述了低速冲击性能的评价方法、损伤检测技术及从数值模拟研究现状,最后提出了未来FMLs低速冲击的研究热点及发展方向。
Fiber metal laminates (FMLs) are widely used in fields such as aerospace and rail transit due to their excellent comprehensive mechanical properties. FMLs are subjected to varying degrees of impact during application. Compared to high-velocity impact, the damage caused by low-velocity impact is mostly imperceptible to the naked eye, but it can still cause irreversible damage such as cracks and delamination, posing safety hazards. Therefore, research on lowvelocity impact damage of FMLs cannot be ignored. This paper explores and analyzes the low-velocity impact damage mechanism, influencing factors, and methods to improve the resistance to low-velocity impact of FMLs. It summarizes and discusses the evaluation methods of low-velocity impact performance, damage detection technology, and the current status of numerical simulation research. Finally, it proposes the research hotspots and development directions of future lowvelocity impact of FMLs.
潘蕾,崔艳芳,张浩然,赵召,章俊,于航,齐浩达. 纤维金属层板低速冲击研究现状[J]. 航空制造技术, 2025, 68(16): 56-72.
PAN Lei, CUI Yanfang, ZHANG Haoran, ZHAO Zhao, ZHANG Jun, YU Hang, QI Haoda. Status of Low-Velocity Impact Research on Fiber Metal Laminates[J]. Aeronautical Manufacturing Technology, 2025, 68(16): 56-72.