目的 揭示陶瓷破片侵彻生物目标过程中的空腔演化规律,建立空腔容积预测模型,为低附带毁伤战斗部设计提供理论支撑。方法 采用弹道肥皂作为生物目标模拟物,开展弹道枪侵彻试验与有限元数值模拟,获取直径4~8 mm陶瓷破片在150~950 m/s速度下侵彻肥皂靶标的动态过程,基于无量纲分析构建空腔容积的数学表征。结果 陶瓷破片侵彻后形成圆锥状空腔,空腔容积随破片直径和侵彻速度的增大而单调增长;建立了最大空腔容积与破片直径、侵彻速度之间的定量关系式,经试验验证吻合良好,模型预测误差小于6%。结论 所建关系式可准确描述陶瓷破片侵彻肥皂靶标的空腔容积变化规律,可为低附带毁伤战斗部设计与目标毁伤评估提供理论依据。
Abstract
The work aims to reveal the cavity evolution law during the penetration of biological targets by ceramic fragments, establish a prediction model for cavity volume, and provide theoretical support for the design of low collateral damage warheads. The ballistic soap was used as a biological target simulant to carry out ballistic gun penetration tests and numerical simulations and obtain the dynamic penetration process of soap targets impacted by ceramic fragments with diameters ranging from 4 to 8 mm at velocities of 150 to 950 m/s. Then, the mathematical characterization of cavity volume was established based on dimensionless analysis. After penetration by ceramic fragments, a conical cavity formed and the cavity volume increased with the penetration velocity and diameter of the ceramic fragments. A quantitative relationship between the dimensionless maximum cavity volume and fragment diameter and penetration velocity was established. Verified by experimental results, the relationship showed good agreement, with the model prediction error less than 6%. The established relationship can accurately describe the variation law of cavity volume generated by ceramic fragments penetrating soap targets, and can provide a theoretical basis for the design of low collateral damage warheads and target damage assessment.
关键词
低附带毁伤 /
侵彻试验 /
数值模拟 /
弹道肥皂
Key words
low collateral damage /
penetration test /
numerical simulation /
ballistic soap
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基金
山西省基础研究计划资助项目（202303021222113）
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