李成兵;沈兆武;裴明敬;
LI Cheng-bing1,SHEN Zhao-wu1,PEI Ming-jing2(1.Department of Modern Mechanics,University of Science and Technology of China,Hefei 230026,China;2.Northwest Institute of Nuclear Technology,Xi'an 710024,China)

• 1:中国科学技术大学力学和机械工程系
• 2:中国科学技术大学力学和机械工程系
• 3:西北核技术研究所 合肥230026
• 4:合肥230026

摘要(Abstract)：

应用LS-DYNA3D软件对聚能杆式弹丸的形成过程进行数值模拟,研究了药型罩外曲率半径、壳体厚度、外层炸药等因素对聚能杆式弹丸成型的影响规律,得出形成理想聚能杆式侵彻体的各参数之间的关系;并对比分析了钢壳和铝壳形成理想聚能杆式弹丸的条件差异;模拟结果可应用于轻型壳体的聚能杆式战斗部结构设计。
The software of LS-DYNA3D is applied to numerical simulation of the formation process of rod shaped projectile.The influencing factors such as outside curvature radius of liner,thickness of casing and outer explosive on the formation of rod shaped projectile is studied.The correlations among all the structural parameters for the formation of an ideal rod shaped projectile are determined.The influence of casing material on formation of projectile is investigated.Moreover,the difference of condition between the use of steel casing and aluminum casing in forming an ideal rod shaped projectile is compared and dis-cussed.The simulation results can be applied to design the rod shaped projectile warhead with light casing.

关键词(KeyWords)： 爆炸力学;聚能杆式弹丸;结构参数;数值模拟
Explosion mechanics;Rod shaped projectile;Structural parameter;Numerical simulation

Abstract:

Keywords:

基金项目(Foundation): 国防预研项目(413260401)

作者(Authors): 李成兵;沈兆武;裴明敬;
LI Cheng-bing1,SHEN Zhao-wu1,PEI Ming-jing2(1.Department of Modern Mechanics,University of Science and Technology of China,Hefei 230026,China;2.Northwest Institute of Nuclear Technology,Xi'an 710024,China)

参考文献(References)：

• (1)Whelan A J,Furnisss D R,Townsley R G.Experimentaland Simulated(Analytical&Numerical)Elliptical-formShaped Charges[A].20th International Symposium onBallistics[C],2002:446-454.
• (2)Baker E L,Sdaniels A.Selectable Initiation Shaped Char-ges[A].20th International Symposium on Ballistics[C].2002:436-449.
• (3)Blache A,Weimann K.Shaped Charge with Jetting Pro-jectile for Extended Targets[A].17th International Sym-posium on Ballistics[C],1998:235-244.
• (4)张宝平,张庆明,黄风雷.爆轰物理学[M].北京:兵器工业出版社,2001.
• (5)Dobratza B M.Properties of chemical explosives and ex-plosive simulants[R].UCRL-51319,1974.
• (6)Steinberg D J,Cook W H.Fracture Mechanics[M].1985.
• (7)Jones N.Structural aspects of ship collisions[A].JonesN,Wierzbicki T.Structural Crashworthiness[M].Lon-don:Butterworths,1983.
• (8)Livermore.LS-DYNA Keyword Mser’s Manual[DB].California:Livermore Software Technology Corporation,2001:610-616.
• (9)American Society for Metals Properties and Selection:Nonferrous Alloys and Pure Metals[A].Metals Hand-book,Ninth Edition Vol.2[M].1979.
• (10)桂毓林,于川,刘仓理.带尾翼的翻转型爆炸成型弹丸的三维数值模拟[J].爆炸与冲击,2005,25(4):313-318.
• (11)隋树元,王树山.终点效应学[M].北京:国防工业出版社.2000.