动能弹高速侵彻钢筋混凝土靶时弹丸头部质量侵蚀微观机理

Translated title of the contribution: Microscopic Observation Mechanism of Nose Mass Abrasion of Kinetic Energy Projectile Penetrating into Reinforced Concrete Target at High Speed

Jianguo Ning, Zhao Li, Tianbao Ma, Xiangzhao Xu*

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

3 Citations (Scopus)

Abstract

An obvious mass abrasion of kinetic energy projectile is generated in the process of high-speed penetration into concrete target. The mass abrasion seriously affects the penetration performance of projectile. A series of high-speed penetration experiments were carried out to further study the internal mechanism of projectile abrasion during penetration. The specimens for microscopic observation were prepared from the nose of residual projectile by linear cutting technique. The microstructures at multiple observation points on the surface of residual projectile were systematically observed by metallographic microscope and scanning electron microscope. The results show that there is an obvious heat affected zone on the surface of residual projectile, and there are many long grooves parallel to each other on its surface. In addition, a few microcracks are observed at the tip of projectile nose, which contribute to the mass loss of the tip of projectile nose, but have little influence. Through the microscopic observation, it is found that the mass abrasion of projectile is not caused by a single mechanism, but is a complex process of different mechanisms interacting with each other.

Translated title of the contributionMicroscopic Observation Mechanism of Nose Mass Abrasion of Kinetic Energy Projectile Penetrating into Reinforced Concrete Target at High Speed
Original languageChinese (Traditional)
Pages (from-to)1809-1818
Number of pages10
JournalBinggong Xuebao/Acta Armamentarii
Volume42
Issue number9
DOIs
Publication statusPublished - Sept 2021

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Ning, J., Li, Z., Ma, T., & Xu, X. (2021). 动能弹高速侵彻钢筋混凝土靶时弹丸头部质量侵蚀微观机理. Binggong Xuebao/Acta Armamentarii, 42(9), 1809-1818. https://doi.org/10.3969/j.issn.1000-1093.2021.09.001