截锥形弹丸侵彻双层靶板的数值模拟研究  

Simulation of Truncated-conical Projectile Penetrating Double-layer Target

作　　者：吴广[1] 黄广炎[2] 冯顺山[1] 

机构地区：[1]北京理工大学爆炸科学与技术国家重点实验室,北京100081 [2]北京航空航天大学航空科学与工程学院,北京100083

出　　处：《系统仿真技术》2010年第2期116-120,共5页System Simulation Technology

摘　　要：运用ANSYS/LS-DYNA模拟截锥形弹丸以低于靶板弹道极限的速度对由不同材料的厚薄靶板组成的双层金属靶板的正侵彻情况,并与2种材料同厚度的单层靶板进行比较。计算表明,双层靶板中,厚薄靶板的放置顺序对靶板整体的防护性能有很大的影响。当高强度的厚靶板放置在前,低强度的薄靶板放置在后时,靶板整体的防护性能低于厚薄靶板相反放置时的防护性能。但这2种靶板的防护性能均低于由高强度材料构成的同厚度的单层靶板。Numerical simulations with ANSYS/LS-DYNA was conducted to analyze rigid truncated- conical projectile vertically penetrates double-layer target under the ballistic limit velocity, which consist of thick and thin plate with different materials, and comparison with the monolithic target of the same thickness. Simulation reveals that the arrangement order of thick and thin plate influents the shield capability of target. The shield capability of double-layer target is that the thick plate with high strength material is upper and the thin plate with low strength material is lower is more effective than the tow layer were invert, but the shield capability of tow double-layer targets are less effective than the monolithic target with high strength material.

关 键 词：双层靶板 截锥形弹丸 侵彻 数值模拟 

分 类 号：O359[理学—流体力学]