Numerical simulation of thick target cratering based on the particle discrete element method

被引：0
|
作者：
Gan, Yun-Dan [1 ]
Zhang, Qing-Ming [1 ]
Feng, Chun [2 ]
Li, Shi-Hai [2 ]
Gong, Zi-Zheng [3 ]
机构：
[1] State Key Laboratory of Explosion Science and Technology, Beijing Institute of Technology, Beijing 100081, China
[2] Institute of Mechanics, Chinese Academy of Sciences, Beijing 100190, China
[3] Beijing Institute of Spacecraft Environment Engineering, Beijing 100094, China
来源：
Binggong Xuebao/Acta Armamentarii | 2012年 / 33卷 / SUPPL2期
关键词：
Numerical methods - Numerical models - Fluid dynamics;
D O I：
暂无
中图分类号：
学科分类号：
摘要：
The finite element method is used to simulate the hypervelocity impact problems which relate the abnormal change of the location nodes due to the large deformation of materials and causes, resulting in element distortion too serious to compute. The particle discrete element method was used to simulate the hypervelocity impact of aluminum projectile with a diameter of 5 mm against a thin target and a thick target. This method overcomes a mesh distortion problem in the hypervelocity impact, and the rules of cratering on thick target were obtained. The rules of cratering are in accord with the results simulated by fluid dynamic method and test data. We proved that the particle discrete element can be used as a new kind of calculation method to simulate hypervelocity impact.
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页码：244 / 247
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