摘要
为了研究不同材料的靶板对横向效应增强型侵彻体(Penetrator with Enhanced Lateral Effect,PELE)的影响,采用三维非线性动力学有限元程序LS-DYNA,在速度900～1300 m.s-1范围内,对一定弹体结构和材料的PELE撞击不同材料的金属薄靶进行数值仿真,并将仿真结果与实验数据进行比较,发现两者能较好的吻合。针对仿真和实验结果进行相应的理论分析发现:惯性压缩阶段是影响横向速度的关键阶段,并且横向速度随着靶板密度和体积模量的增大而提高。
By use of three-dimensional nonlinear dynamic finite element program LS-DYNA, a series of numerical simulations of pelletrator with enhanced lateral effect （PELE）, which had the same projectile structure and material, pentetrate different metal targets with the same velocities （900 -1300 m· s-1） were presented. The simulation results were compared with the experimental and in good agreement with the experimental data. The corresponding theoretical analysis between the results of simulation and experiment shows that the process of the inertia compression has much to do with the effect for PELE, and the PELE has better lateral effect with the increasing of density and bulk modulus of the target.
出处
《含能材料》
EI
CAS
CSCD
北大核心
2012年第6期705-709,共5页
Chinese Journal of Energetic Materials
关键词
爆炸力学
靶板材料
横向速度
数值仿真
mechanics of explosion
material of target
radical velocity
numerical simulation
