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为准确描述破片与目标相互作用,揭示致伤机理,将Sturdivan,Segletes,Liu侵彻模型与考虑明胶应变率效应的改进模型进行对比,并分析模型差异.分别选取Ф3,Ф4和Ф4.8 mm球形破片为杀伤元,对破片在明胶中运动规律进行了实验研究.同时,对4种运动模型进行数值计算,并与实验结果进行了对比分析.结果表明,考虑应变率效应的改进运动模型理论值与实测值误差较小,一致性较好,能较为准确描述球形破片在明胶中运动规律,可为轻武器弹药设计和战伤救治提供理论参考.
In order to describe the interaction between fragment and target accurately and to reveal the mechanism of injury, Sturdivan, Segletes and Liu penetration models were compared with the improved model considering gelatin strain rate effect, and the model differences were analyzed.Differences of Ф3, Ф4 and Ф4.8 mm The spherical fragments are killing elements, and the motion of fragments in gelatin are experimentally studied.At the same time, four kinds of motion models are numerically calculated and compared with the experimental results.The results show that the improved motion model theory considering the strain rate effect The error between the value and the measured value is small and the consistency is good. It can describe the movement rule of spherical fragments in gelatin more accurately and provide a theoretical reference for the design of light weapons and the treatment of war injuries.