摘要
利用LS DYNA软件提供的二维轴对称拉格朗日计算编码,对钻地弹前级球缺形药型罩爆炸成型弹丸问题进行了数值模拟。讨论了计算方法的选取依据,考察了典型的射弹形成过程、壳体飞散过程以及射弹速度与动能,分析了不同模型的计算结果差异,实验结果与计算符合很好。
The EFP formation with Hemispherical Liner is simulated using 2-D axisymmetric Lagrangian code provided by LS-DYNA. The criterion of numerical method is discussed, and the typical processes of EFP formation, velocity and kinetic energy are studied. Differences between 6 models are analyzed, and the calculated results are in good agreement with the experimental observations.
出处
《高压物理学报》
EI
CAS
CSCD
北大核心
2005年第1期86-92,共7页
Chinese Journal of High Pressure Physics
关键词
弹丸
拉格朗日
算符
药型罩
动能
轴对称
二维
成型
爆炸
壳体
Computer simulation
Explosive forming
Kinetic energy
Lagrange multipliers
Numerical methods
Two dimensional
