An FEM-SPH coupled model for simulating penetration of armor-piercing bullets into ceramic composite armors and glass composite armors

LIU Sai; ZHANG Weigui; LYU Zhenhua

doi:10.11883/bzycj-2020-0069

Volume 41 Issue 1

Jan. 2021

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LIU Sai, ZHANG Weigui, LYU Zhenhua. An FEM-SPH coupled model for simulating penetration of armor-piercing bullets into ceramic composite armors and glass composite armors[J]. Explosion And Shock Waves, 2021, 41(1): 014201. doi: 10.11883/bzycj-2020-0069

Citation:

LIU Sai, ZHANG Weigui, LYU Zhenhua. An FEM-SPH coupled model for simulating penetration of armor-piercing bullets into ceramic composite armors and glass composite armors[J]. Explosion And Shock Waves, 2021, 41(1): 014201. doi: 10.11883/bzycj-2020-0069

Citation:

LIU Sai, ZHANG Weigui, LYU Zhenhua. An FEM-SPH coupled model for simulating penetration of armor-piercing bullets into ceramic composite armors and glass composite armors[J]. Explosion And Shock Waves, 2021, 41(1): 014201. doi: 10.11883/bzycj-2020-0069

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An FEM-SPH coupled model for simulating penetration of armor-piercing bullets into ceramic composite armors and glass composite armors

doi: 10.11883/bzycj-2020-0069

LIU Sai^{1, 2
,},
ZHANG Weigui³,
LYU Zhenhua^{2
,
,}

1.
China Academy of Launch Vehicle Technology, Beijing 100076, China
2.
School of Vehicle and Mobility, Tsinghua University, Beijing 100084, China
3.
Technology and Engineering Center for Space Utilization, Chinese Academy of Sciences, Beijing 100094, China

Received Date: 2020-03-19
Rev Recd Date: 2020-07-10
Publish Date: 2021-01-05

Abstract

Abstract

To improve the ballistic simulation accuracy of ceramic composite armors and glass composite armors (transparent armors) against small-caliber armor piercing bullets, the new FEM (finite element method) -SPH (smooth particle hydrodynamics) coupled model was proposed, which replaced the FEM model and JC (Johnson-Cook) material model of the armor-piercing-bullet core of traditional FEM-SPH coupled model with the SPH model and JH2 (Johnson-Holmquist-ceramics) material model. The results show that the new FEM-SPH coupled model can effectively simulate bullet core fragmentation and reduce FEM-SPH coupled calculation amount. So it can improve the computation accuracy and efficiency. And the FEM element/SPH particle size and armor modeling size of the new FEM-SPH coupled model are optimized.
- armor piercing bullet,
- ceramic composite armor,
- glass composite armor,
- transparent armor,
- FEM-SPH coupled calculation,
- modeling method,
- ballistic limit velocity

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References(19)

References

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