Numerical Research on Ballistic Limit of Whipple Shield in High-Velocity Range

Authors

Yixiao Li, Beijing Institute of Mechanical Equipment, Beijing 100854, China;
Shengjie Wang, Beijing Institute of Mechanical Equipment, Beijing 100854, China;

Abstract

Abstract: Limited by the acceleration ability of two-stage light gas guns, few hypervelocity impact experiment of Whipple shield with projectile speed higher than 8 km/s has been performed. The ballistic limit equations can't fully describe the protection ability of Whipple shield in high-velocity range because of the lack of experimental data. GRAY three-phase equation of state is used in the material point method calculation program to simulate the penetration of thick target plate and the high-velocity impact of Whipple shield. The numerical result of Whipple shield ballistic limit shows that the ballistic limit in high-velocity range is higher than the forecasting of traditional ballistic limit equations. This result is valuable for the design of spacecraft protection structure.

Recommended Citation

Li, Yixiao and Wang, Shengjie (2020) "Numerical Research on Ballistic Limit of Whipple Shield in High-Velocity Range," Journal of System Simulation: Vol. 32: Iss. 9, Article 8.
DOI: 10.16182/j.issn1004731x.joss.19-0078
Available at: https://dc-china-simulation.researchcommons.org/journal/vol32/iss9/8

First Page

1705

Revised Date

2019-04-07

DOI Link

https://doi.org/10.16182/j.issn1004731x.joss.19-0078

Last Page

1710

CLC

O385

Recommended Citation

Li Yixiao, Wang Shengjie. Numerical Research on Ballistic Limit of Whipple Shield in High-Velocity Range[J]. Journal of System Simulation, 2020, 32(9): 1705-1710.

DOI

10.16182/j.issn1004731x.joss.19-0078