Formation of Toroidal Explosively Formed Projectile and Its Penetration into Concrete Targets

被引：0
|
作者：
Hu, Yu [1 ]
Ji, Chong [1 ]
Wang, Yuting [1 ]
Wang, Xin [1 ]
Zhao, Changxiao [1 ]
Qian, Huanyu [1 ]
Wang, Kejie [1 ]
机构：
[1] Univ Peoples Liberat Army, Coll Field Engn, Army Engn, Nanjing 210007, Peoples R China
来源：
INTERNATIONAL JOURNAL OF STRUCTURAL STABILITY AND DYNAMICS | 2024年
基金：
中国国家自然科学基金;
关键词：
Shaped charge; toroidal explosively formed projectile; kill element forming mechanism; liner structural parameters; impact penetration; HIGH-VELOCITY IMPACT; SHAPED CHARGE; BALLISTIC PERFORMANCE; DAMAGE; JET;
D O I：
10.1142/S0219455426501129
中图分类号：
TU [建筑科学];
学科分类号：
0813 ;
摘要：
The study of the penetration efficiency of formed charges with different liner structures has practical implications for optimizing combatant structure design. In this paper, a kind of toroidal explosively formed projectile (TEFP) is proposed and the influence of the cone angle and morphology of the liner on the formation mechanism and penetration performance of TEFP is analyzed by numerical simulation. The results showed that, with the same charge mass, the TEFP exhibited a better hole reaming performance than the shaped charge jet; as the liner cone angle increased from 90 degrees to 150 degrees in a stepwise manner, the axial velocity of the TEFP increased slightly, while the penetration cavity diameter tended to decrease. Compared with the straight cone liner structure, the curved cone liner TEFP significantly improved the penetration depth with a slightly lower penetration cavity diameter, realizing the large-diameter penetration breakout effect for concrete targets.
引用
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页数：31
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