3D simulation of over-turned explosively formed projectile (EFP) with star-shaped fins

GUI Yu-lin; YU Chuan; LIU Cang-li; SUN Cheng-wei

doi:10.11883/1001-1455(2005)04-0313-06

Volume 25 Issue 4

Dec. 2014

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GUI Yu-lin, YU Chuan, LIU Cang-li, SUN Cheng-wei. 3D simulation of over-turned explosively formed projectile (EFP) with star-shaped fins[J]. Explosion And Shock Waves, 2005, 25(4): 313-318. doi: 10.11883/1001-1455(2005)04-0313-06

Citation:

GUI Yu-lin, YU Chuan, LIU Cang-li, SUN Cheng-wei. 3D simulation of over-turned explosively formed projectile (EFP) with star-shaped fins[J]. Explosion And Shock Waves, 2005, 25(4): 313-318. doi: 10.11883/1001-1455(2005)04-0313-06

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3D simulation of over-turned explosively formed projectile (EFP) with star-shaped fins

doi: 10.11883/1001-1455(2005)04-0313-06

1.
Laboratory for Shock Wave and Detonation Physics Research, Institute of Fluid Physics, China Academy of Engineering Physics, Mianyang 621900, Sichuan, China

Publish Date: 2005-07-25

Abstract

Abstract

Formation process and the three fins of the over-turned EFP ignited at three points are numerically simulated with LS-DYNA3D finite element code. Simulated results are in good agreement with experiments, providing the important reference for improvement and optimization of EFP design. Two constitutive models, Johnson-Cook and Steinberg, have been used to model the liner material. The results show that the constitutive model has some effect on the shape of the fins and the Steinberg model appears better in reproducing the experimental results.
- mechanics of explosion,
- optimum design,
- LS-DYNA code,
- over-turned EFP,
- constitutive model,
- star-shaped fin