曹进峰,赖建中,周捷航,尹雪祥
(南京理工大学 材料科学与工程学院,江苏 南京 210094)
摘 要:陶瓷材料具有质量轻、硬度高、抗压强度高等优异的力学性能。采用试验和数值模拟的方法研究了密排陶瓷球结构相较于陶瓷面板结构的优越性。结果表明,密排陶瓷球结构在抗多发弹性能、致弹体偏航性能上有不俗的表现。陶瓷球的使用在防护结构中是经济的,因为损坏的陶瓷球可以被替换,而未损坏的陶瓷球可重复使用。在验证数值模型有效性的基础上,对密排陶瓷球(水泥基)复合靶板的不同弹着点位置和弹体不同入射角的影响进行了研究。分析了密排陶瓷球结构的薄弱弹着点位置以及弹体偏航效果和防护性能与入射角的关系。
关键词:密排陶瓷球;弹道偏航;抗多发弹;弹着点;入射角
基金项目:国家自然科学基金(51678308,51278249)。
作者简介:曹进峰(1993—),男,南京理工大学,研究生,Email:1175014321@qq.com。(www.xing528.com)
Anti-penetration performance of close-packed ceramic ball composite armor
CAO Jinfeng,LAI Jianzhong,ZHOU Jiehang,YIN Xuexiang
(School of Materials Science and Engineering,Nanjing University of Science and Technology,Nanjing 210094,China)
Abstract:Ceramic materials have excellent mechanical properties such as light weight,great hardness and high compressive strength.The superiority of the close-packed ceramic ball structure compared with the ceramic panel structure was researched by means of experiments and numerical simulations.The results show that the close-packed ceramic ball structure has a good performance in resisting multiple bullets and causing the yawing of the projectile.The use of ceramic balls is economical in protection field because damaged ceramic balls can be re⁃placed and undamaged ceramic balls can be reused.Based on the validity of the verified numerical model,the effects of different impact points and different projectile incident angles of the close-packed ceramic ball(cement-based)composite target were studied.The position of the weak impact point of the close-packed ce⁃ramic ball structure and the relationship between the yawing effect and the protective performance of the projectile and the incident angle were analyzed.
Keywords:close-packed ceramic ball;ballistic yaw;resist multiple shots;impact point;incident angle
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