Abstract In this paper, the response of metal plates under the interaction of detonation wave is studied experimentally and numerically. Detonation wave interaction experiments were carried out on metal plates of different materials and thicknesses, and different results such as incision, partial fracture and complete fracture were obtained. ALE algorithm and fluid − solid coupling mode were used to simulate the conditions similar to experiments, and the fracture process and pressure distribution of the metal plate were analyzed. The experimental results were in good agreement with the simulation results. Finally, based on the micro-element fracture theory, the theoretical analysis of the fracture law of the metal plate was carried out, and the fracture criterion based on the threshold impulsive velocity was concluded. It has been verified that this criterion is in good agreement with the simulation and experimental results. It can be used as a basis for estimating the fracture problem of metal plates under explosive load.

中文翻译：

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爆震波作用下金属板断裂的研究

摘要 本文对金属板在爆震波相互作用下的响应进行了实验和数值研究。对不同材料和厚度的金属板进行了爆轰波相互作用实验，得到了切口、部分断裂和完全断裂等不同结果。采用ALE算法和流固耦合模式模拟与实验相似的条件，分析金属板的断裂过程和压力分布。实验结果与模拟结果吻合良好。最后，基于微元断裂理论，对金属板的断裂规律进行了理论分析，得出了基于阈值冲击速度的断裂判据。经验证，该判据与仿真和实验结果吻合良好。可作为估计爆炸载荷作用下金属板断裂问题的依据。