Penetration and internal blast behavior of reactive liner enhanced shaped charge against concrete space were investigated through experiments and simulations. The volume of the enclosed concrete space is about 15 m³. The reactive liner enhanced shaped charge utilizes reactive copper double-layered liner, which is composed of an inner copper liner and an outer reactive liner, while the reactive material liner is fabricated by PTFE/Al (Polytetrafluoroethylene/Aluminum) powders through cold-pressing and sintering. Static explosion experiments show that, compared with the shaped charge which utilizes copper liner, the penetration cavity diameter and spalling area of concrete by the novel shaped charge were enlarged to 2 times and 4 times, respectively. Meanwhile, the following reactive material had blast effect and produced significant overpressure inside the concrete closed space. Theoretical analysis indicates concrete strength and detonation pressure of reactive material both affect the penetration cavity diameter. To the blast behavior of reactive material inside the concrete space, developing TNT equivalence model and simulated on AUTODYN-3D for analysis. Simulation results reproduced propagation process of the shock wave in concrete space, and revealed multi-peaks phenomenon of overpressure-time curves. Furthermore, the empirical relationship between the peak overpressure and relative distance for the shock wave of reactive material was proposed.

通过实验和模拟研究了反应衬里增强聚能装药对混凝土空间的穿透和内部爆炸行为。封闭混凝土空间的体积约为 15 m ³. 活性内衬增强型聚能装药采用活性铜双层内衬，由内层铜内衬和外层反应性内衬组成，而反应性材料内衬由PTFE/Al（聚四氟乙烯/铝）粉末通过冷压成型制成。烧结。静态爆炸实验表明，与采用铜内衬的聚能射孔弹相比，新型聚能射孔弹对混凝土的侵彻空腔直径和剥落面积分别扩大了2倍和4倍。同时，以下反应材料具有爆炸作用，在混凝土封闭空间内产生了显着的超压。理论分析表明，混凝土强度和反应材料的爆震压力都会影响贯入空腔直径。针对混凝土空间内反应材料的爆炸行为，开发了TNT当量模型，并在AUTODYN-3D上进行仿真分析。仿真结果再现了冲击波在混凝土空间中的传播过程，揭示了超压-时间曲线的多峰现象。此外，还提出了反应材料冲击波峰值超压与相对距离之间的经验关系。