Fiber metal laminates have lately attracted considerable interest due to their diverse use in industrial sectors. Indeed, FMLs are virtually applied by combining both the metal and composite layers in order to achieve better outcomes. The preference of FML over metal or composite has been verified in many studies. The preliminary objective of the present study, however, is to make attempts to evaluate the influence of rubber layer on FML impact resistance once subjected to high-velocity impact. To this end, a numerical analysis is administered following an experiment. In this regard, the applied materials consist of 2024-T3 aluminum alloy, woven glass/epoxy prepreg and nitrile butadiene rubber. The steel projectile for impact tests was geometrically cylinder and flat-ended. It is noteworthy that all tests were run by a high-speed gas gun, and the numerical analysis was carried out in LS-DYNA software. Ultimately, the obtained results indicated that by inserting a rubber layer among the laminates, aluminum layer can bend further, and more kinetic energy can be dissipated from the projectile. Moreover, the special perforation energy and ballistic limit velocity, V₅₀, increased dramatically.

近年来，由于金属纤维层压板在工业领域中的广泛使用，引起了人们的极大兴趣。实际上，FML是通过将金属层和复合层结合在一起来虚拟应用的，以便获得更好的结果。许多研究已经证明，FML优于金属或复合材料。然而，本研究的初步目的是试图评估橡胶层在受到高速冲击后对FML耐冲击性的影响。为此，在实验之后进行数值分析。在这方面，所施加的材料包括2024-T3铝合金，玻璃纤维/环氧树脂预浸料和丁腈橡胶。用于冲击试验的钢弹在几何形状上是圆柱体且是平头的。值得注意的是，所有测试均由高速气枪进行，并在LS-DYNA软件中进行了数值分析。最终，获得的结果表明，通过在层压板之间插入橡胶层，铝层可以进一步弯曲，并且可以从弹丸中耗散更多的动能。而且，特殊的射孔能量和弹道极限速度V ₅₀急剧增加。