### 钻地弹斜侵彻混凝土靶的工程计算模型

1. 南京理工大学 机械工程学院, 南京 210094
• 收稿日期:2015-12-17 修回日期:2016-01-25 出版日期:2016-06-15 发布日期:2016-02-17
• 通讯作者: 沈培辉 男,教授,硕士生导师。主要研究方向:战斗部设计。Tel:025-84317237 E-mail:sphjy8@mail.njust.edu.cn E-mail:sphjy8@mail.njust.edu.cn
• 作者简介:薛建锋 男,博士研究生。主要研究方向:弹体战斗部设计。Tel:025-84317237 E-mail:xuejianfeng666@163.com;王晓鸣 男,教授,博士生导师。主要研究方向:弹药与战斗部系统技术。Tel:025-84315059 E-mail:202xm@163.com
• 基金资助:

国家"973"计划(61314302)

### Engineering calculation model for oblique penetration into concrete target by earth penetration weapon

XUE Jianfeng, SHEN Peihui, WANG Xiaoming

1. School of Mechanical Engineering, Nanjing University of Science and Technology, Nanjing 210094, China
• Received:2015-12-17 Revised:2016-01-25 Online:2016-06-15 Published:2016-02-17
• Supported by:

National Basic Research Program of China (61314302)

Abstract:

In order to study trajectory of earth penetration weapon during penetration under stress asymmetry, in combination of kinetic basic equations and classical cavity expansion theory, an engineering model of projectile penetrating into concrete with incident angle and yawed angle is established using surface splitting mechanism. The relationship between the trajectory of projectile head and yawed angle, incident angle and velocity is obtained using the model. The results show that the penetration depth decreases obviously with the increase of incident angle, and the curve arc of the projectile's head is larger. The deflection torque increases with the increase of yawed angle. The engineering model is verified by experiment, and the results are in good agreement with the experimental results. The model can effectively reflect the main characteristics of oblique penetration process. The applicability and rationality of the model are also proved.