钨合金易碎动能穿甲弹穿甲有限元模拟与分析  

FEM Simulation and Analysis of Tungsten Heavy Alloy Fragile Projectile Under Impact Dynamics

作　　者：荣吉利[1] 于心健[1] 刘宾[2] 胡更开[1] 

机构地区：[1]北京理工大学理学院力学系,北京100081 [2]中国空间技术研究院总体专业技术部,北京100086

出　　处：《北京理工大学学报》2004年第3期193-196,共4页Transactions of Beijing Institute of Technology

基　　金：国家部委基金资助项目(A160B001)

摘　　要：研究具有不同力学特性的材料作为钨合金易碎动能穿甲弹的侵彻和破碎性能.在建立钨合金易碎动能穿甲弹有限元分析模型的基础上,运用大型动态非线性有限元分析软件MSC-Dytran模拟具有不同拉-压强度比的钨合金穿甲弹在穿透靶板时的侵彻和破碎过程.仿真结果表明,弹体的破碎及毁伤性能随其材料拉伸强度的降低而提高;弹体材料拉伸强度的提高有助于侵彻的进行.数值模拟和结果分析有助于为易碎钨合金动能穿甲弹的研制提供一定的理论参考依据.The fragmentation and penetration of materials having different mechanical characteristics are studied for the development of tungsten heavy alloy fragile projectile. An FEM analysis model for tungsten heavy alloy fragile projectile is established. Simulation of the process of penetration of tungsten heavy alloy with different ratios of tension to compression against the target was carried out with the dynamic nonlinear finite element analysis software MSC-Dytran. Rules of fragmentation and penetration of tungsten heavy alloy are obtained. Analysis of simulation results shows that the power of fragmentation of projectiles increases as tension intensity falls, but the power of penetration increases as tension intensity increases. Numerical simulation and analysis of results offer a theoretical reference for the engineering design of tungsten heavy alloy fragile projectiles.

关 键 词：钨合金 有限元方法 侵彻 破碎 

分 类 号：TJ012.4[兵器科学与技术—兵器发射理论与技术]