A mass abrasion model with the melting and cutting mechanisms during high-speed projectile penetration into concrete slabs

作     者：Jianguo Ning Huilan Ren Zhao Li Xiangzhao Xu 宁建国;任会兰;李钊;许香照

作者机构：State Key Laboratory of Explosion Science and TechnologyBeijing Institute of TechnologyBeijing100081China China North Vehicle Research InstituteBeijing100072China 

出 版 物：《Acta Mechanica Sinica》 (力学学报（英文版）)

年 卷 期：2022年第38卷第10期

页      面：14-27页

核心收录：

学科分类：082601[工学-武器系统与运用工程] 08[工学] 0826[工学-兵器科学与技术] 0802[工学-机械工程] 0801[工学-力学（可授工学、理学学位）] 

基　　金：the National Natural Science Foundation of China(Grant No.12032006) Beijing Institute of Technology Research Fund Program for Young Scholars(Grant No.XSQD-202102011) 

主　　题：Projectile abrasion Microscopic observation High-speed penetration Concrete target 

摘      要：In this study,ogive-nose projectile penetration into concrete slabs was tested at initial projectile impact velocities ranging from 1325.0 m/s to 1425.0 m/*** depth of penetration and mass loss of the projectiles were measured,and the residual projectiles were recovered after the penetration *** electron microscopy and metallographic microscopy of the microstructures were performed on various sections and outer surfaces of the projectiles taken from different locations of the residual projectiles,to analyze the intrinsic mechanisms of mass *** analysis results reveal that,during high-speed projectile penetration,projectile abrasion is caused by multiple *** on the cavity expansion theory,a projectile penetration model was established by considering the two main mass loss mechanisms observed in the microscopic *** theoretical predictions of the penetration depth,mass loss rate,and change of projectile head are consistent with the experimental results obtained both in this study and previous research.