钢筋混凝土靶体侵彻破坏响应及其原位测试技术研究  

The in-situ measurement of the penetration trajectory in reinforced concrete target by grid measurement method

作　　者：徐伟芳[1] 陈小伟[1] 张荣[1] 何丽灵[1] 李会敏[1] 黄海莹[1] 

机构地区：[1]中国工程物理研究院总体工程研究所,绵阳621999

出　　处：《中国科学：技术科学》2016年第4期407-414,共8页Scientia Sinica(Technologica)

基　　金：国家自然科学基金(批准号:11390362;11572299)资助项目

摘　　要：为研究弹体在钢筋混凝土中的侵彻过程,本文研制了格栅测试系统,主要由格栅电缆、LED灯、电源和高速相机等组成.依附靶体中的钢筋,格栅电缆被制作成棋盘式格栅网,按一定间距预埋于靶体之中,并与电源和LED灯组成回路.运动中的弹体切断附近的格栅电缆,对应的LED灯将熄灭,进而表征了格栅电缆的破坏状态,并由高速相机进行记录.结合格栅的分布,实时原位测试弹体的侵彻轨迹、速度和侵彻深度.基于此,本文测试了弹体的速度变化和最终的侵深,并结合经验公式、直接测量进行了校验,论证了格栅测试方法的有效性.In order to study the terminal ballistics of a high-speed penetrator striking in the steel reinforced concrete target, a grid measurement method was developed in the present paper, which was composed of the grid cables, LED lamps, power and high-speed photography, etc. The grid cables were pre-embedded as multilayer with given space and arranged like the chess-hoard distribution along the steel rebars. When the projectile penetrated into concrete target, it might cut off the grid cable, which would truncate the corresponding circuit and turn off the corresponding LED lamps. The winking of LED lamps in each layer were recorded simultaneously by the high-speed photography. Given the distribution of the grid cables, the ballistic trace, velocity and DOP could be determined according to the winking of LED lamps. Based on the method, the variation of the projectile velocity and DOP were studied by experiments, which was validated by the empirical formula and direct measurement. It confirmed the effectiveness of the grid method.

关 键 词：格栅测试方法 原位测试方法 侵彻响应 钢筋混凝土 

分 类 号：TU375[建筑科学—结构工程] TJ410[兵器科学与技术—火炮、自动武器与弹药工程]