基于ANSYS/LS-DYNA的刻槽式MEFP侵彻钢靶的研究  

The Study of Penetration of Steel Targets with Grooved MEFP Based on ANSYS/LS-DYNA

作　　者：徐文龙[1] 相升海[1] 张健[1] 王猛[1] 詹君彪 赵玉荣[1] 

机构地区：[1]沈阳理工大学装备工程学院,沈阳110159

出　　处：《弹箭与制导学报》2014年第3期67-70,74,共5页Journal of Projectiles,Rockets,Missiles and Guidance

基　　金：辽宁省重点实验室科研基金(LS2010139)资助

摘　　要：多爆炸成型弹丸战斗部(MEFP)能有效提高炸药利用率和命中概率。基于ANSYS/LS-DYNA软件研究了刻槽式MEFP战斗部侵彻双层无间隔钢靶的过程,通过使用三维建模方法、不同材料分别选取不同的状态方程和本构方程,采用实体单元和壳单元进行网格划分,得到了刻槽式MEFP战斗部对靶板侵彻的数值计算结果。结果表明:刻槽式MEFP侵彻过程要经过开坑、联合侵彻、贯穿3个阶段。模拟结果与实验结果基本一致。Multiple explosively formed projectiles （MEFP） can effectively raise utilization and hitting probability of explosive. The process of penetrating double-layer nonseptate steel targets with grooved MEFP was studied based on ANSYS/LS-DYNA in this paper. The results of numerical calculation was got by creating 3D model, different state equations and constitutive equations were selected by different materi- als, meshing was conducted by solid element and shell element. Calculated results show that penetration process should pass through three stages： spud-in stage, unite penetration stage and throughout stage. The simulation results are consistent with the experimental results.

关 键 词：ANSYS/LS-DYNA 数值计算 多爆炸成型弹丸(MEFP) 侵彻力学 

分 类 号：TJ414.2[兵器科学与技术—火炮、自动武器与弹药工程]