Numerical Simulation Study on Macro-Microscopic Damage of PBX Charge during Penetration of Double-Layer Targets

ZHANG Xiaowei; ZHAO Heming; ZHENG Xiaobo; ZHANG Qiao; WANG Zhijun; XIAO Youcai

doi:10.11858/gywlxb.20240795

Volume 38 Issue 6

Nov 2024

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Chinese Journal of High Pressure Physics > 2024 > 38(6): 064201.

ZHANG Xiaowei, ZHAO Heming, ZHENG Xiaobo, ZHANG Qiao, WANG Zhijun, XIAO Youcai. Numerical Simulation Study on Macro-Microscopic Damage of PBX Charge during Penetration of Double-Layer Targets[J]. Chinese Journal of High Pressure Physics, 2024, 38(6): 064201. doi: 10.11858/gywlxb.20240795

Citation:

ZHANG Xiaowei, ZHAO Heming, ZHENG Xiaobo, ZHANG Qiao, WANG Zhijun, XIAO Youcai. Numerical Simulation Study on Macro-Microscopic Damage of PBX Charge during Penetration of Double-Layer Targets[J]. Chinese Journal of High Pressure Physics, 2024, 38(6): 064201. doi: 10.11858/gywlxb.20240795

Citation:

ZHANG Xiaowei, ZHAO Heming, ZHENG Xiaobo, ZHANG Qiao, WANG Zhijun, XIAO Youcai. Numerical Simulation Study on Macro-Microscopic Damage of PBX Charge during Penetration of Double-Layer Targets[J]. Chinese Journal of High Pressure Physics, 2024, 38(6): 064201. doi: 10.11858/gywlxb.20240795

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Numerical Simulation Study on Macro-Microscopic Damage of PBX Charge during Penetration of Double-Layer Targets

doi: 10.11858/gywlxb.20240795

1.
School of Mechanical and Electrical Engineering, North University of China, Taiyuan 030051, Shanxi, China
2.
Institute of Fluid Physics, CAEP, Mianyang 621999, Sichuan, China

Received Date: 18 Apr 2024
Rev Recd Date: 17 May 2024

Available Online: 30 Aug 2024

Issue Publish Date: 05 Dec 2024

Abstract

Abstract

To study the charge damage evolution process when a high-velocity warhead penetrated a double-layer target, a numerical simulation study was conducted using a cohesive zone model to investigate the penetration of double-layer target. The cohesive zone model was utilized to calculate the occurrence and evolution of PBX damage, as well as to analyze the relationship between the penetration velocity and damage evolution. The quantification of damage was conducted by means of the damage ratio. Furthermore, a micro-damage finite element model for PBX was established to examine the microscopic damage mechanisms during penetration into a double-layer target. The results show that when the projectile penetrates the target plate vertically, the extent of damage of the charge increases with the increase of penetration velocity. From a microscopic perspective, it was observed that cyclic tensile and compressive loads induced the formation of vertical cracks perpendicular to the loading direction. The primary mechanism of damage in PBX charge penetration into double-layer target is interface debonding. Additionally, the microcracks destabilize, propagate, and converge into a continuous main crack.
- double-layer target,
- PBX charge,
- cohesive zone model,
- macroscopic and microscopic damage simulation,
- microcrack

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References(31)

References

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Numerical Simulation Study on Macro-Microscopic Damage of PBX Charge during Penetration of Double-Layer Targets

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