封装陶瓷形状对复合结构抗侵彻性能的影响  

Effect of the Shape of Ceramics on the Anti-penetration Performance of Compound Structure

作　　者：孙启添 田超 孙昕[1] 叶坪 董永香[1] SUN Qitian;TIAN Chao;SUN Xin;YE Ping;DONG Yongxiang(State Key Laboratory of Explosion Science and Technology,Beijing Institute of Technology,Beijing 100081,China)

机构地区：[1]北京理工大学爆炸科学与技术国家重点实验室,北京100081

出　　处：《兵工学报》2020年第S02期83-88,共6页Acta Armamentarii

基　　金：爆炸科学与技术国家重点实验室基金项目(YBKT20-20)。

摘　　要：陶瓷/金属复合结构抗侵彻性能优异,在轻质装甲领域有广泛的应用前景。结合实验数据和数值模拟开展封装陶瓷柱形状对复合结构抗侵彻性能的影响规律研究。结果表明:陶瓷形状影响了结构的吸能方式和破坏模式,进而影响了结构整体的抗侵彻性能;梯形截面陶瓷能增大结构受载荷的面积,增加背板的塑性变形,以吸收更多的弹丸能量,结构最终呈现出的破坏模式为韧性破坏;倒梯形截面陶瓷则在受到弹丸侵彻时,对相邻的陶瓷柱体产生挤压作用,使得载荷发生横向传播,结构内部的陶瓷发生大范围损伤,背板隆起高度较小,结构总体呈现冲塞破坏;陶瓷柱形状通过影响载荷分布与能量传输方式,进而影响复合结构抗弹丸侵彻的能力。Ceramic/metal corrugated compound structures have excellent anti-penetration performance and wide application prospects in the field of light armor.The influence of the shape of embedded ceramic column on the anti-penetration performance of compound structure is studied through experiments and numerical simulation.The results show that the shape of ceramics affects the energy absorption and failure mode of structure,affecting the anti-penetration performance of compound structure.The trapezoidal ceramic can increase the loaded area of structure,thus making the back plate of structure absorb more energy of a projectile through plastic deformation.The failure mode of structure is ductile failure.Inverted trapezoidal ceramics penetrated by projectiles exert a squeezing effect on adjacent ceramic pillars,causing the load to propagate laterally.Ceramics inside the structure undergo large-scale damage.Protrusion of back plate is lower in this situation.And the failure mode of compound structure is erosion failure.The ceramics with different shapes improve the ability of compound structure to resist projectile penetration by changing the dynamic response mode of compound structure.

关 键 词：金属封装陶瓷 复合结构 抗侵彻性能 动态响应 

分 类 号：TJ012.4[兵器科学与技术—兵器发射理论与技术]