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| Status of Low-Velocity Impact Research on Fiber Metal Laminates |
| PAN Lei, CUI Yanfang, ZHANG Haoran, ZHAO Zhao, ZHANG Jun, YU Hang, QI Haoda |
| Nanjing University of Aeronautics and Astronautics, Nanjing 210016, China |
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Abstract 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.
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| PACS: V25;TB33 |
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