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为了研究陶瓷破片对有生力量的毁伤效能及在爆炸作用下的侵彻特性,以破片垂直侵彻靶板的实验为基础,采用LS-Dyna程序,对陶瓷破片以四种不同初速垂直侵彻松木靶进行了三维数值模拟。根据模拟结果,分析了侵彻过程各个阶段的物理现象和弹靶作用特征;绘制了不同侵彻初速对侵彻结果的影响曲线,可以为陶瓷破片在不同初速下的毁伤效能研究提供参考依据。结果表明,陶瓷破片在炸药爆炸冲击波作用下,其强度性能满足使用要求;三维数值模拟方法能够揭示陶瓷球垂直侵彻靶板的细节和初速对侵彻结果的影响情况,与实验结果吻合。
In order to study the corrosive power of ceramic fragments and their penetration characteristics under explosive action, LS-Dyna program was used to vertically penetrate the target with four different muzzle velocities Three-dimensional numerical simulation was performed. According to the simulation results, the physical phenomena and the characteristics of the projectile in each stage of the penetration process are analyzed. The influence curve of the initial velocity on the penetration is plotted, which can provide the reference for the study of the damage efficiency of the ceramic fragments under different initial velocities. The results show that the strength properties of the ceramic fragments meet the requirements of the explosive blast shock wave; the three-dimensional numerical simulation method can reveal the details of the vertical penetration of the ceramic balls and the influence of the initial velocity on the penetration results, which is in good agreement with the experimental results.