热软化对动能弹侵彻混凝土极限侵深影响机理研究  

The mechanism study of thermal softening on the ultimate penetration depth of kinetic energy projectile into concrete

作　　者：赵文汇 孙宇新[1] 郭太平 ZHAO Wenhui;SUN Yuxin;GUO Taiping(National Key Laboratory of Transient Physics,Nanjing University of Science and Technology,Nanjing 210094,China)

机构地区：[1]南京理工大学瞬态物理国家重点实验室,江苏南京210094

出　　处：《防护工程》2023年第3期41-46,共6页Protective Engineering

基　　金：江苏省研究生科研与实践创新计划项目(KYCX22_0489)

摘　　要：动能弹侵彻混凝土存在极限侵深问题,开展相关研究具有重要的学术价值和工程意义。通过建立弹体材料热软化分析模型,嵌入EPIC源代码程序,开展了动能弹侵彻混凝土动力学过程研究,得到了侵彻过程的应力场、应变场和温度场图像,分析了动能弹侵彻过程蘑菇头形成机理,表明弹体材料热软化效应是影响动能弹极限侵深的关键因素之一。There is a problem of ultimate penetration depth of kinetic energy projectile into concrete,so it is of great academic value and engineering significance to carry out related research.In this paper,the dynamic process of kinetic energy projectile penetrating concrete is studied by establishing the thermal softening analysis model of projectile material and embedding the EPIC source code program,and the images of stress field,strain field and temperature field in the penetration process are obtained.The formation mechanism of mushroom head in the pene⁃tration process of kinetic energy projectile is analyzed,which shows that the thermal softening effect of projectile material is one of the key factors affecting the ultimate penetration depth of kinetic energy projectile.

关 键 词：极限侵深 EPIC源程序开发 热软化效应 

分 类 号：TJ06[兵器科学与技术—兵器发射理论与技术] TU37[建筑科学—结构工程]