含能材料2017，Vol.25Issue(6)：459-465,7.DOI:10.11943/j.issn.1006-9941.2017.06.003
EFP水中飞行特性及侵彻间隔靶的仿真与试验研究
Numerical Simulation and Experimental Study on Flight Characteristics and Penetration Against Spaced Targets of EFP in Water
摘要
Abstract
Aiming at the applied problem in underwater munitions of explosively formed projectile(EFP) warhead,the rule of velocity attenuation,mass loss and penetration ability against spaced targets under different distance conditions of EFP in water was simulated and studied by the LS-DYNA finite element software.The test verification was carried out by a high-speed photography.Results show that the configuration of EFP after entering water is unstable.The mass of EFP is sharply decreased,even leads to fragmentation.With increasing the traveling distance of EFP in water,the mass of EFP is reduced to 1/3 ～ 1/5 of initial mass.The velocity of EFP in water decreases linearly at first and then decays exponentially.The EFP of traveling the 2.5 times charge diameter distance can penetrate the 5 mm target plate,but the EFP of traveling the 5 times more than charge diameter distance has no penetration ability.关键词
爆炸成型弹丸(EFP)/水介质/侵彻/数值模拟/飞行特性Key words
explosively formed projectile(EFP)/water medium/penetration/numerical simulation/flight characteristics分类
军事科技引用本文复制引用
王雅君,李伟兵,王晓鸣,李文彬..EFP水中飞行特性及侵彻间隔靶的仿真与试验研究[J].含能材料,2017,25(6):459-465,7.基金项目
江苏省普通高校研究生科研创新计划项目(SJZZ16_0067),江苏省“青蓝工程”资助 （SJZZ16_0067）
