摘要
为了探究不同形状和初始动能条件下预制钨破片对中厚钢靶的穿甲问题,采用LS-DYNA动力显示分析软件分别对不同初速条件下,3种形状破片撞击钢靶的过程进行仿真模拟。通过对比分析弹靶毁伤形貌和破片速度时程曲线等,得到了形状和初始动能对穿甲威力影响的变化规律。仿真结果表明:相同初始条件下,不同破片形状对钢靶的侵蚀程度不尽相同,但侵彻机理相似;侵彻动能的增加对穿甲威力的提升影响显著,穿甲威力随侵彻动能的增加而增大;初始动能相同时,立方体形破片破孔能力最强,圆柱形破片次之,球形破片最弱;与此同时,立方体形破片在穿甲过程中速度及动能衰减最为严重。
This paper aims on discussing the perforation performance of the prefabricated tungsten fragments with different shapes and different initial kinetic energy conditions. Use LS-DYNA kinetic display analysis software to carry out simulation for three shapes of fragments into steel plate in different initial conditions. By comparing and analyzing target damage morphology and fragment＇s velocity curves, we acquire the change rule of influence of shape and the initial kinetic energy on the armor piercing performance. The results show that under the same initial conditions, different shapes fragments have the same penetration or erosion mechanism but with different contents. The armor piercing power increases with the increase of the kinetic energy. In the condition of the same initial kinetic energy, the cubic fragment has the strongest power, followed by the cylindrical fragment, and the spherical fragment is the weakest. Meanwhile, the velocity/kinetic energy of the cubic fragment attenuates most seriously with compared to the other.
出处
《兵工自动化》
2017年第5期57-61,共5页
Ordnance Industry Automation
基金
国家杰出青年基金(11225213)
中国工程物理研究院重点学科项目
西南科技大学研究生创新基金(15ycx107)
关键词
预制钨破片
中厚钢靶
穿甲
LS-DYNA
prefabricated tungsten fragment
medium thickness steel target
armor piercing
LS-DYNA
作者简介
吴晓凤（1992-），女，四川人，硕士，从事防护工程方面研究。
