弹体低速侵彻陶瓷-混凝土复合靶体的侵彻深度计算模型
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摘要
为了研究弹体以低于400m·s~(-1)的侵彻速度侵彻陶瓷-混凝土复合靶体时,侵彻深度与侵彻速度及材料参数之间的关系,利用Forrestal空腔膨胀理论和弹体侵彻混凝土靶体的经验公式,在弹体对靶体的不同侵彻状态下,计算了弹体受到的侵彻阻力。依据牛顿第二运动定律,建立了弹体低速撞击陶瓷-混凝土靶体的侵彻深度计算模型,并将理论计算的侵彻深度与已有试验数据进行了比对分析,结果表明两者间的相对偏差较小,证明了该理论计算模型及其计算结果具有可靠性。
The relationships among the penetration depth,the penetration velocity,and the material parameters are studied when the projectile penetrates into ceramic concrete composite targets at a speed below 400 m·s~(-1).By using the Forrestal's cavity expansion theory and the empirical formula of the concrete target,the penetration resistance of the target subjected to a projectile is calculated.Based on Newton's second law of motion,a calculation model for calculating the penetration depth of a projectile into a ceramic concrete target is established.Compared the penetration depth calculated by the calculation model with the experimental data,it is found that the deviation between them is small,which proves the reliability of the calculation model.
The relationships among the penetration depth,the penetration velocity,and the material parameters are studied when the projectile penetrates into ceramic concrete composite targets at a speed below 400 m·s~(-1).By using the Forrestal's cavity expansion theory and the empirical formula of the concrete target,the penetration resistance of the target subjected to a projectile is calculated.Based on Newton's second law of motion,a calculation model for calculating the penetration depth of a projectile into a ceramic concrete target is established.Compared the penetration depth calculated by the calculation model with the experimental data,it is found that the deviation between them is small,which proves the reliability of the calculation model.
引文
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[2]任会兰,树学锋,李平.强冲击载荷下氧化铝陶瓷破坏特性的数值模拟及实验研究[J].中国科学(G辑),2009,39(9):1 221-1 230.(REN Hui-lan,SHU Xue-feng,LI Ping.Numerical and experimental investigation on the fracture behaviors of shock loaded alumina[J].Sci China Ser G,2009,39(9):1 221-1 230.)
[3]李金柱,黄风雷,张连生.陶瓷材料抗长杆弹侵彻阻抗研究[J].北京理工大学学报,2014,34(1):1-4.(LI Jin-zhu,HUANG Feng-lei,ZHANG Lian-sheng.Penetration resistance of ceramic materials subjected to projectile's impact[J].Transactions of Beijing Institute of Technology,2014,34(1):1-4.)
[4]FLORENCE A L,AHRENS T J.Interaction of projectiles and composite armor[R].AMMRC-CR-69-15,Standard Research Institute Menlo Park,1969.
[5]WOODWARD R L.A simple one-dimensional approach to modelling ceramic composite armourdefeat[J].Int J Impact Eng,1990,9(4):455-474.
[6]DEN REIJER P C.Impact on ceramic faced armour[D].Delft:Delft University of Technology,1991.
[7]ZAERA R,SNCHEZ-GlVEZ V.Analytical modelling of normal and oblique ballistic impact on ceramic/metal lightweight armours[J].Int J Impact Eng,1998,21(3):133-148.
[8]宋春明,王明洋,王德荣,等.纤维陶瓷复合靶体的抗侵彻试验研究[C]//第4届全国工程安全与防护学术议论文集,洛阳,2014:119-125.(SONG Chun-ming,WANG Ming-yang,WANG De-rong,et al.Research on anti-penetration test of ceramic composite targets[C]//4th National Conference of Engineering security and Protection,Luoyang,2014:119-125.)
[9]赵晓宁.高速弹体对混凝土侵彻效应研究[D].南京:南京理工大学,2011.(ZHAO Xiao-ning.Study on the effect of projectiles high-velocity normal penetrating into concrete targets[D].Nanjing:Nanjing Institute of Science and Technology,2011.)
[10]FORRESTAL M J,ALTMAN B S,CARGILE J D,et al.An empirical equation for penetration depth of ogive-nose projectiles into concrete targets[J].Int J Impact Engng,1994,15(4):395-405.
[11]LI Q M,REID S R,WEN H M,et al.Local impact effects of hard missiles on concrete targets[J].Int J Impact Engng,2005,32:224-284.
[12]FELLOWS N A,BARTON P C.Development of impact model for ceramic-faced semi-infinite armour[J].Int J Impact Engng,1999,22(8):793-811.