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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。Abstract: 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.
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Key words:
- Earth Penetrator /
- EFP /
- numerical simulation /
- lagrangian method
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