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Acta Armamentarii ›› 2023, Vol. 44 ›› Issue (S1): 144-151.doi: 10.12382/bgxb.2023.0734

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Numerical Simulation of Temperature Rise of 4340 Steel Projectile Penetrating into 45# Steel Target

YU Shuangyang, PENG Yong*()   

  1. College of Science, National University of Defense Technology, Changsha 410073, Hunan,China
  • Received:2023-08-09 Online:2023-12-08
  • Contact: PENG Yong

Abstract:

In order to obtain the basic characteristics of the temperature rise of projectile during the process of penetrating into a metal target, the temperature rise of 4340 steel spherical projectile penetrating into 45# steel target isexperimentally studiedwith a first-stage light gas gun. Based on the experimental conditions, a finite element model of 4340 steel projectile penetrating into 45# steel target is established using ANSYS/LS-DYNA software. After a good fit between the numerical simulation model and the experimental results, the effects of the initial velocity of 4340 steel projectile, the thickness of target plate and the temperature distribution of two layers of target when 4340 steel projectile penetrates into 45# steel target are discussed in detail by changing the initial conditions. The results show that the temperature rise of projectile is mainly distributed in the head of projectile during the process of penetration. The temperature rise of projectile during penetration increases with the increase of velocity. When two layers of target are penetrated, the temperaturerise of projectile mainly occurs in the process of penetrating into the first layer of target.

Key words: 45# steel target, penetration, 4340 steel, temperature rise, numerical simulation

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