Ballistic performance of spherical fragments penetrating PCrNi3MoV target plates
作者机构：Ministerial Key Laboratory of ZNDYNanjing University of Science and TechnologyNanjingChina
出 版 物：《Defence Technology（防务技术）》 (Defence Technology)
年 卷 期：2024年第33卷第3期
页 面：295-307页
核心收录：
学科分类：08[工学] 0826[工学-兵器科学与技术]
主 题：Impact damage Ultimate penetration velocity Bulge height Target penetration energy Failure modes
摘 要：PCrNi3MoV steel is a medium-carbon,low-alloy quenched and tempered steel that finds its applications in military gun barrels due to the high wear resistance and ablation *** study the penetration and failure modes of PCrNi3MoV plates impacted by tungsten spheres,tungsten spheres of various diameters(5 mm,8 mm,and 10 mm)were used to impact PCrNi3MoV steel plates with thicknesses of 6 mm,9 mm,and 14 *** penetration performance of the spheres was analyzed for different velocities,and the ultimate penetration velocity of the plate was *** was found that the primary failure modes of the PCrNi3MoV plate were compression pitting failure and shear *** the dimensional analysis method,a relationship between the bulge height of the steel plate and the fragment velocity,an equation for the ultimate penetration velocity,and a relationship between the target penetration energy and the fragment velocity were ***,a projectile-target action index was proposed to describe the process of tungsten spheres with different velocities impacting target *** results suggested that under the same thickness of the target plate,a larger-diameter fragment required more kinetic energy to obtain the same ultimate penetration effect as a smaller-diameter *** equations obtained through dimensional analysis predicted values that agreed well with experimental values,indicating that these equations can be applied to engineering applications.
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