Numerical simulation for tungsten alloy fragments penetrating 2024 aluminum target

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Journal of Vibration and Shock ›› 2023, Vol. 42 ›› Issue (15) : 156-162.

XIA Jingwen1,2, CHEN Zhigang2, GU Minhui1,2, MENG Fangao3, ZHAO Taiyong2, WANG Weizhan2

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Abstract

Ballistic impact tests were conducted to obtain the ballistic limit (V_50) of tungsten alloy cube breakers and spherical breakers against a 4mm2024 aluminium target at an angle of impact of 〖90〗^°.Based on the agreement between numerical simulation and experimental results,the influence of tungsten alloy chip shape and mass was analysed.The results show that the intrusion V_50 of both shapes decreases with the increase of the fragment mass;At 〖90〗^° impact angle,the penetration V_50 of cube fragments is lower than the spherical fragments,and the difference between the two V_50 increases with the increase of fragment mass.The V_50 fluctuation interval of the cubic fragment due to the change of the target attitude increases as the fragment mass increases,and the probability that the intrusion V_50 of the cubic fragment is smaller than the spherical fragment increases.

Key words

V_50 / The ballistic limit / Penetration gesture / Numerical simulation

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XIA Jingwen1,2, CHEN Zhigang2, GU Minhui1,2, MENG Fangao3, ZHAO Taiyong2, WANG Weizhan2. Numerical simulation for tungsten alloy fragments penetrating 2024 aluminum target[J]. Journal of Vibration and Shock, 2023, 42(15): 156-162

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