近年来钢纤维混凝土（SFRC）因对动态和冲击荷载具有优异力学响应而备受关注。现有的试验结果表明，嵌入混凝土基体中的高强度钢纤维具有很强的桥接效应，可以增强纤维与基体之间的结合力，有助于改善SFRC 开裂后性能和残余强度。为了更好地了解钢纤维在基体中的行为表现，以及进一步掌握SFRC在动态荷载作用下的失效机理，细观模拟方法已被广泛用于模拟SFRC材料和结构件的动态响应。细观模拟方法假设SFRC 由不同的细观组分组成，包括钢纤维、粗骨料、砂浆基体和界面过渡区（ITZ）。本文全面综述了动态荷载下SFRC的最新细观模型和模拟过程，系统对比了不同数值模拟研究中SFRC细观模型的生成方法，包括钢纤维、粗骨料及其之间的ITZ。全面总结了不同细观组分的材料模型及纤维与混凝土基体间的相互作用关系。此外，列举了不同动态荷载（即压缩、拉伸和接触爆炸）作用下SFRC细观模拟应用实例。最后，重点分析了现有SFRC细观模拟方法存在的不足，对于SFRC的未来研究及发展具有重要意义。

Steel fiber reinforced concrete (SFRC) has drawn extensive attention in recent years for its superior mechanical response to dynamic and impact loadings. Based on the existing test results, the highstrength steel fibers embedded in a concrete matrix usually play a strong bridging effect to enhance the bonding force between fiber and the matrix, and directly contribute to the improvement of the post-cracking behavior and residual strength of SFRC. To gain a better understanding of the action behavior of steel fibers in matrix and further capture the failure mechanism of SFRC under dynamic loads, the mesoscopic modeling approach that assumes SFRC to be composed of different mesoscale phases (i.e., steel fibers, coarse aggregates, mortar matrix, and interfacial transition zone (ITZ)) has been widely employed to simulate the dynamic responses of SFRC material and structural members. This paper presents a comprehensive review of the state-of-the-art mesoscopic models and simulations for SFRC under dynamic loading. Generation approaches for the SFRC mesoscale model in the simulation works, including steel fiber, coarse aggregate, and the ITZ between them, are reviewed and compared systematically. The material models for different phases and the interaction relationship between fiber and concrete matrix are summarized comprehensively. Additionally, some example applications for SFRC under dynamic loads (i.e., compression, tension, and contact blast) simulated using the general mesoscale models are given. Finally, some critical analysis on the current shortcomings of the mesoscale modeling of SFRC is highlighted, which is of great significance for the future investigation and development of SFRC.