含能材料2024，Vol.32Issue(9)：899-910,12.DOI:10.11943/CJEM2024107
聚能射流侵彻有限厚钢靶后效参数的特性
Characteristics of After-effect Parameters of Shaped Charge Jet Penetrating Finite Thickness Steel Target
摘要
Abstract
To study the characteristics of after-effect parameters of shaped charge jet penetrating finite thickness steel target,the experiments on small shaped charge jet formation and penetration on finite thickness plate with after-effect target were carried out.The numerical simulation on the process of shaped charge jet penetrating finite thickness target plate was carried out by AN-SYS/LS-DYNA finite software.The influence of target plate thickness,standoff and after-effect material density on the after-effect parameters of shaped charge jet penetration was analyzed,including the residual jet tip diameter d,tip velocity v and after-effect initiation ability v 2d.The results show that with the increase of target thickness,the after-effect initiation ability v 2d shows a lin-ear attenuation trend,and around 16%of the initial initiation parameter is lost for every 20 mm increase in thickness.In the range of standoff that the jet keeps continuous,with the increase of standoff,the after-effect initiation ability v 2d first increases and then decreases,and its stagnation point appears at the standoff of 8 times the shaped charge diameter.In the range of com-mon explosive density,with the increase of after-effect material density ρ,the attenuation rate of after-effect initiation ability v 2d first decreases and then increases.At the same time,there is a stagnation point in the v 2d-ρ curve.The peak value of v 2d is dis-tributed between ρ=1.6-1.8 g·cm-3,and the stagnation point position moves to the right with the increase of penetration time.关键词
聚能射流/有限厚靶板/冲击引爆/靶后引爆威力/靶后效应物Key words
shaped charge jet/finite thickness target/shock initiation/after-effect initiation ability/after-target object分类
军事科技引用本文复制引用
方一舟,张先锋,熊玮,刘闯,谈梦婷..聚能射流侵彻有限厚钢靶后效参数的特性[J].含能材料,2024,32(9):899-910,12.基金项目
国家自然科学基金(12141202,12002170) National Natural Science Foundation of China(Nos.12141202,12002170) （12141202,12002170）
