摘要
针对混凝土的脆性特点,设计了有预先破坏功能的异形头部弹体,进行了侵彻混凝土实验.利用高速摄影仪记录了隧道区初始阶段的速度,通过比较隧道区的平均侵彻阻力,分析了异形头部弹体和卵形弹体的侵彻阻力.基于Forrestal公式分析了卵形弹体静态侵彻阻力与异形头部弹体的差别.实验和计算结果表明,异形头部弹体能有效减小侵彻阻力.
To reducing penetration resistance and increasing the depth of penetration, two types ofnose headed penetrator （NHP） were proposed based on the characteristics of concrete.Penetration experiments were proceeded to analyse the feasibility of NHP＇s reducing resistanceand the influence of NHP on penetration resistance. The penetration depths and resistances ofNHP and ogive-nose penetrator were computed and compared based on the Forrestal formula.The experimental and computational results show NHPs can reduce the penetration resistance,NHPs can increase the depth of penetrators by 10% after optimizing.
出处
《北京理工大学学报》
EI
CAS
CSCD
北大核心
2015年第8期787-791,共5页
Transactions of Beijing Institute of Technology
基金
国家部委基础科研计划资助项目(C1520110001)
国家自然科学基金资助项目(11202029)
关键词
侵彻实验
异形头部弹体
混凝土靶
减阻
penetration experiment
nose headed penetrator
concrete target
resistance reducing
