Abstract: Based on the theoretical analysis on JHC model, a series of experiments for those parameters of JHC model are designed, and the parameters of a sort of cement mortar are acquired through experiments. A numerical simulation for the failure process of a cement mortar plate due to explosive loading is performed by using LS-DYNA software. The numerical simulate results are in agreement well with the experimental results, which indicates that mechanical parameters for JHC model measured by authors' experiments are effective and valid.

Key words: JHC model, experimental measurement, explosive experiment, numerical simulation

摘要： 在对JHC(Holmquist-Johnson-Cook)模型进行理论分析的基础上,针对该模型的力学参数获取问题设计了一系列具体的实验，并通过这些实验获取了一种素混凝土的JHC模型的具体参数。依据所获取的JHC模型力学参数，运用LS-DYNA有限元软件，对素混凝土板在爆炸载荷作用下的破坏过程进行了数值模拟，并进行了相应的爆炸实验。数值模拟结果与实验结果吻合较好，表明按照本文提供的实验方法来测定JHC模型参数是有效的。

关键词: JHC模型, 实验测定, 爆炸实验, 数值模拟