基于微观分析的质量侵蚀模型研究  

Investigation on the model of mass abrasion based on the microscopic analysis

作　　者：武海军[1] 钱飞[1,2] 黄风雷[1] 

机构地区：[1]北京理工大学爆炸科学与技术国家重点实验室,北京100081 [2]装甲兵工程学院兵器工程系,北京100072

出　　处：《中国科学：技术科学》2016年第4期415-424,共10页Scientia Sinica(Technologica)

基　　金：国家自然科学基金(批准号:11390362;11572048;11221202);国防基础科研计划(批准号:B1020132071)资助项目

摘　　要：采用微观分析实验研究侵彻实验后剩余弹体表面的质量侵蚀痕迹,确定和总结弹体质量侵蚀的物理机制.基于微观分析实验结果,改进Archard模型的形式,获得表征切削弹体头部材料的切削速度,考虑侵彻过程中弹靶间的摩擦生热对切削因子的影响,采用温度项连接摩擦与切削两种机制,采用节点回退法表征弹体头部形状的变化,建立融合摩擦与切削两种机制的质量侵蚀模型,对比数值计算结果与国内外典型的实验数据,证实该弹体质量侵蚀模型有效.Based on the microscopic analysis experiments of residual projectiles after penetration experiment, the trace of the mass erosion of residual projectiles surface are investigated, and the physical mechanism of mass erosion is determined and summarized. Based on the results of microscopic experiment, the form of Archard model is modified to build a cutting velocity expressing cutting the head surface of projectile. Considering the effect of the heat produced by the friction in the penetration process on the cutting coefficient, the mechanism of friction is connected to the mechanism of cutting with the temperature, and the mass erosion model including the two mechanisms is built. In the model, the changing of the head shape of projectile is expressed by the method of node backspacing, then, the calculated results and the domestic and foreign typical experimental data are compared, and the results confirm that the model of mass erosion is valid.

关 键 词：高速侵彻 质量侵蚀 微观分析 熔化与切削 

分 类 号：TJ410[兵器科学与技术—火炮、自动武器与弹药工程]