半球形衬板形成与侵彻的数值研究

2018 IEEE 9th International Conference on Mechanical and Intelligent Manufacturing Technologies (ICMIMT) Pub Date : 2018-02-01 DOI:10.1109/ICMIMT.2018.8340434

Yayun Zhao, Qiran Sun, Jiangtuo Feng, Yuxin Sun, Ruiyu Li

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引用次数: 0

摘要

利用AUTODYN-2D软件对反坦克地雷用爆炸成形弹(EFP)的形成和侵彻过程进行了仿真。由于这种EFP的口径很大(110毫米)，但其距离很低(约500毫米)，因此很难使用高速摄影或x射线记录其形成。因此，采用数值模拟对整个过程进行研究。通过文献模拟实验，验证了铜衬垫的本构模型和材料参数。利用流固耦合方法对EFP的形成和侵彻过程进行了数值模拟，结果与实验数据吻合较好。此外，还研究了壳体厚度的影响。值得注意的是，壳体对地层形状的影响很大，但对侵彻深度的影响很小。

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Numerical study on formation and penetration of hemispherical liner

The formation and penetration process of the explosively-formed projectile (EFP) used as an anti-tank mine is simulated with AUTODYN-2D. Since the caliber of this EFP is large (110 mm), but its stand-off is low (about 500 mm), it is difficult to record its formation using high-speed photography or X-ray. Therefore, numerical modeling is adopted to investigate the whole process. The constitutive model and material parameters of the copper liner are verified by simulating the experiments from the literature. Then the formation and penetration of the EFP are simulated using the fluid-solid coupling method, and the numerical results agree well with experimental data. Besides, the effect of the shell thickness is studied. It is worth noting that the shell has a great influence on the formation shape, but little on the penetration depth.

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来源期刊

2018 IEEE 9th International Conference on Mechanical and Intelligent Manufacturing Technologies (ICMIMT)

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