爆炸成型弹丸战斗部不同侵彻着角下的毁伤能力研究  

Research on the Damaging Ability of EFP Warhead at Different Incidence Angle

作　　者：樊菲[1] 李伟兵[1] 王晓鸣[1] 李文彬[1] 韩玉 

机构地区：[1]南京理工大学智能弹药技术国防重点学科实验室,江苏南京210094 [2]总装备部沈阳军事代表局,辽宁沈阳110015

出　　处：《高压物理学报》2012年第2期199-204,共6页Chinese Journal of High Pressure Physics

基　　金：国家部委基金项目(A2620060253);江苏省2009年度普通高校研究生科研创新基金(CX09B_087Z);南京理工大学自主科研专项计划资助项目(ZDJH02)

摘　　要：利用LS-DYNA仿真软件,对爆炸成型弹丸(EFP)毁伤能力与EFP侵彻着角关系进行了研究。结果表明:随着EFP着角从0°增加到40°,EFP侵彻靶板的垂直侵彻深度减小了34.2%,开孔处孔径大小增加了18.2%。侵彻过程中,EFP头部速度与时间呈线性规律变化,并且当EFP着角越大时,头部速度下降趋势越快;EFP垂直侵彻深度与时间先呈线性增长,随后上升趋势变得缓慢;不同侵彻着角下的侵彻参数与时间的关系趋势一致。基于EFP的垂直侵彻理论和杆式弹的斜侵彻理论,结合仿真拟合曲线,得到了EFP垂直侵彻深度与侵彻着角的修正计算公式。Using LS-DYNA simulation software,we studied the relationship of the EFP＇s damaging ability with the penetration incidence angle of explosively formed projectile（EFP）.It was found that,with the incidence angle changing from 0° to 40°,the depth of vertical penetration of EFP reduced 34.2%,and the pore size of openings increased 18.2%.During the penetration,the head velocity of EFP changed as lines with time,and with the incidence angle increasing,the head velocity of EFP decreased more quickly.At first,the depth of vertical penetration of EFP changed as lines with time,then it showed slow upward trend.The relationship between penetration parameters and time was consistent under different penetration incidence angles.Based on 0° penetration theory of EFP and oblique penetration theory of rod projectile,according to fitting curve of simulation,the correction formula of depth of vertical penetration of EFP and angle was obtained.

关 键 词：爆炸成型弹丸 侵彻着角 毁伤能力 侵彻深度 数值模拟 

分 类 号：O385[理学—流体力学]