摘要
为了研究蜂窝结构的二次抗侵彻性能,对六边形单元蜂窝结构进行了多次侵彻试验,以及在不同弹着点和不同速度条件下的数值模拟研究,并对结果进行了分析。试验和数值模拟研究结果表明,由于六边形钢管的阻隔作用,在弹体速度相差不大情况下,蜂窝结构的破坏面积要远小于钢筋混凝土的破坏面积;蜂窝结构的破坏范围多数局限在弹体和靶体接触的单元内,而其他单元没有发生破坏现象;弹体都会发生偏转现象,第2枚弹体偏转的角度较第1枚弹体的偏转角度大,两枚弹体偏转角度的大小与其弹着点和速度有关。蜂窝结构是一种抗弹体二次侵彻性能好的结构。
Anti-penetration performance of honeycomb shelter under two projectile strikes is investigated via test and numerical simulation.The results show that the damaged area of the honeycomb structure target is smaller than that of the reinforced concrete target under projectile strikes with approximately the same velocity.The damage range of the honeycomb structure target is limited within the hexagonal cell getting contact with projectile left other cells with no damage.During the two repeat projectile strikes,the first projectile will deflect to some extent just as single projectile strike.The deflection of the second projectile is larger and is related to the distance between the strike point of the two projectiles.The results show that honeycomb shelter performs well under two projectile strikes.
作者
王起帆
孙建虎
李季
田镇华
李洁
Wang Qifan;Sun Jianhu;Li Ji;Tian Zhenhua;Li Jie(Army Logistics,University of PLA,Chongqing 401331,P.R.China;CMCU Engineering Co.,Ltd.,Chongqing 400500,P.R.China)
出处
《地下空间与工程学报》
CSCD
北大核心
2020年第S02期639-646,655,共9页
Chinese Journal of Underground Space and Engineering
基金
陆军勤务学院青年科研资助项目(LQ-QN-201834)
重庆市教委科学技术研究计划(KJZD-K201912902)
关键词
蜂窝结构
重复打击
应力波
偏转
honeycomb shelter
repeated strikes
stress wave
deflection
