爆炸与冲击2011，Vol.31Issue(1)：62-68,7.
截锥形弹穿甲单加筋板的破坏特性
Falure characteristics of a conical projectile penetrating single stiffened plate*
摘要
Abstract
In order to determine the impact depth of a conical projectile impacting single stiffened plate vertically, the residual velocity of the projectile after penetrating the stiffened plate must be known.The plug is formed after the conical projectile penetrating the grillage and the cross section of the plug is similar to that of the conical projectile. The petal failure is formed on the panel. By the squeeze of the conical projectile, the web plate occurs plastic deformation and the alar plate causes turnover.Based on the failure model, the energy consumption mode of the grillage was determined. During the perforation process, the energy consumption of the grillage was completed by shear deformation of the plug, kinetic energy of the plug, plastic extruding deformation of the grillage, the power work of the patels, the propagation of radial cracks and petal bending. In the view of energy, the energy formula was deduced for each energy dissipation mode and the energy consumed in the impact process was determined. The residual velocity and the ballistic limit velocity of the projectile was deduced by energy conservation principle. The comparison of the residual velocity between the analytical and the numerical results is in excellent agreement, which verifies the accuracy and reliability of the theoretical formula.关键词
爆炸力学/剩余速度/能量守恒/加筋靶板/凿块/花瓣型破坏Key words
mechanics of explosion/ residual velocity/ energy conservation/ stiffened plate/ plug/ petal failure分类
数理科学引用本文复制引用
徐双喜,吴卫国,李晓彬,孔祥韶,黄燕玲..截锥形弹穿甲单加筋板的破坏特性[J].爆炸与冲击,2011,31(1):62-68,7.基金项目
国防基础研究项目(A1420080184) （A1420080184）
