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弹体对钢筋混凝土板-钢板的贯穿计算问题
引用本文:王明洋,郑大亮,白晓燕.弹体对钢筋混凝土板-钢板的贯穿计算问题[J].爆炸与冲击,2005,25(4):289-295.
作者姓名:王明洋  郑大亮  白晓燕
作者单位:1.解放军理工大学工程兵工程学院,江苏 南京 210007
基金项目:国家重点基础研究发展计划(973计划)
摘    要:主要讨论了钢筋混凝土板-钢板中箍筋、纵向钢筋和钢板对弹体贯穿过程的影响。根据钢筋混凝土板-钢板多阶段变形与破坏和能量在时间、空间上的分配差异,提出了钢筋混凝土板-钢板的变形与破坏模型,确定了箍筋和钢板对弹体的阻力公式,并将纵向钢筋网等价为薄钢板厚度,从而给出了弹体和贯穿块的运动方程。并通过与弹体贯穿混凝土板过程中弹体的加速度、速度、位移的对比,说明了钢筋混凝土板-钢板中各联系件对弹体在介质贯穿过程中位移场的影响。

关 键 词:爆炸力学    变形和破坏模型    弹塑性理论    钢筋混凝土    钢板    弹体
文章编号:1001-1455(2005)04-0289-07
收稿时间:09 14 2004 12:00AM
修稿时间:12 23 2004 12:00AM

Theoretical study on the perforation of reinforced concrete with back-up steel plate(RCBSP) by projectiles
Wang Ming-yang,ZHENG Da-liang,BAI Xiao-yan.Theoretical study on the perforation of reinforced concrete with back-up steel plate(RCBSP) by projectiles[J].Explosion and Shock Waves,2005,25(4):289-295.
Authors:Wang Ming-yang  ZHENG Da-liang  BAI Xiao-yan
Institution:1.Engineering Institute of PLA University of Science and Technology, Nanjing 210007, Jiangsu, China
Abstract:Actions of hoop steel-bar, portrait steel-bar, and steel plate on perforation block in RCBSP are discussed. According to the deformation and failure of RCBSP and distribution of energy in time and space, deformation and failure models of RCBSP are established. In addition, resistance formulae of hoop reinforcing steel bar and steel plate to projectile are deduced, and by regarding the reinforcing steel bar net as an equivalent steel plate, the motion equations of projectile and perforation block are proposed. The acceleration, speed, and displacement of projectile in concrete are compared with those in BCBSP, showing the influence of the elements in RCBSP on projectile's displacement field.
Keywords:mechanics of explosion  deformation and failure model  elastoplastic theory  steel reinforcement concrete  steel plate  projectile
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