Influences of main controlling factors on the penetration depth of special-shaped head projectiles penetrating metal targets
YU Bin1, DONG Yongxiang2, LI Xiangyu1, SONG Qing2, FENG Shunshan2
1.College of Arts and Science, National University of Defense Technology, Changsha Hunan 410073, China;
2.State Key Laboratory of Explosion Science and Technology, Beijing Institute of Technology, Beijing 100081, China
Abstract:In order to study the penetration characteristics of special-shaped head projectiles penetrating metal targets,based on the dimension method, the main controlling factors affecting the penetration depth were analyzed, experiments and numerical simulations on the process of partial penetrating metal targets by special-shaped head projectiles were carried out respectively by using a gas gun and the LS-DYNA software.The influences of the projectile structure, projectile initial velocity, and target thickness on the penetration depth were investigated.The curves of the penetration depth versus the initial projectile velocity and the target thickness were obtained.The results show that the key factors affecting the penetration depth of partial penetrating are the initial velocity of the projectile and the thickness of the target plate.The dimensionless empirical formula for expressing the relation of the initial projectile velocity and the target plate thickness to the penetration depth was derived through fitting.The results provide a reference to the study of partial penetration depth as well as to the engineering calculation of new type penetration problems.
于滨1,董永香2,李翔宇1,宋卿2,冯顺山2. 主控因素对异型头弹丸半侵彻金属靶深度的影响特性研究[J]. 振动与冲击, 2020, 39(9): 188-193.
YU Bin1, DONG Yongxiang2, LI Xiangyu1, SONG Qing2, FENG Shunshan2. Influences of main controlling factors on the penetration depth of special-shaped head projectiles penetrating metal targets. JOURNAL OF VIBRATION AND SHOCK, 2020, 39(9): 188-193.
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