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Journal of Projectiles, Rockets, Missiles and Guidance >

2023 , Vol. 43 >Issue 5: 45 - 53

DOI: https://doi.org/10.15892/j.cnki.djzdxb.2023.05.007

Numerical Simulation of Tungsten Zirconium Alloy Fragments Penetrating Reinforced Concrete

  • WANG Zhuoshuo 1 ,
  • ZHAO Taiyong 1 ,
  • YANG Baoliang 2 ,
  • JING Tong 2 ,
  • JIANG Xiansong 3 ,
  • CHEN Zhigang 1 ,
  • ZHOU Tao 1 ,
  • WANG Weizhan 1
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  • 1 School of Mechanical and Electrical Engineering, North University of China, Taiyuan 030051, Shanxi, China
  • 2 Xi’an Modern Control Technology Research Institute, Xi’an 710065, shaanxi, China
  • 3 Chongqing Chang’an industry (Group) Co., Ltd., Chongqing 401120, China

Received date: 2023-02-13

  Online published: 2024-12-30

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Abstract

It is of great significance to study the penetration power of spherical fragments into reinforced concrete fortifications for the evaluation of weapon damage effectiveness. In this paper, the crater formation and damage characteristics of reinforced concrete under different impact speeds are obtained through the test of the 9.5 mm tungsten zirconium alloy spherical fragment penetrating into a 10 cm thick C35 reinforced concrete target at 760~1 300 m/s. Based on the numerical simulation method, the penetration effect of a series of spherical fragments with a diameter of 8~13 mm into reinforced concrete at impact angles 0°~75° is expanded. The test and simulation results show that with the increase of impact velocity, the residual mass of tungsten zirconium fragments gradually decreases, the penetration depth of reinforced concrete gradually increases, the damage pattern of concrete target changes from the crater effect to the radial crack propagation trend, and the back of target plate appears collapse phenomenon; With the increase of tungsten zirconium fragment quality, the cratering effect of concrete target, the radial crack propagation and the back side collapse of target plate gradually become obvious; With the increase of the impact angle of the fragments, the penetration depth gradually decreases, and there is a tendency to jump. The research results can provide reference for the structural power design of warhead damage element.

Key words： tungsten zirconium fragment; reinforced concrete; damage; numerical simulation

Cite this article

WANG Zhuoshuo , ZHAO Taiyong , YANG Baoliang , JING Tong , JIANG Xiansong , CHEN Zhigang , ZHOU Tao , WANG Weizhan . Numerical Simulation of Tungsten Zirconium Alloy Fragments Penetrating Reinforced Concrete[J]. Journal of Projectiles, Rockets, Missiles and Guidance, 2023 , 43(5) : 45 -53 . DOI: 10.15892/j.cnki.djzdxb.2023.05.007

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