钨纤维复合材料穿甲弹芯侵彻时的自锐现象  

Self-sharpening phenomena of tungsten fiber composite material penetrators during penetration

作　　者：荣光[1] 黄德武[2] 

机构地区：[1]南京理工大学瞬态物理国家重点实验室,江苏南京210094 [2]沈阳理工大学装备工程学院,辽宁沈阳110168

出　　处：《爆炸与冲击》2009年第4期351-355,共5页Explosion and Shock Waves

基　　金：国防科技重点实验室基金项目(51453030305 QT2802)

摘　　要：对钨合金穿甲弹和钨纤维/Zr合金金属玻璃基复合材料穿甲弹进行了靶场对比侵彻实验。穿甲弹侵彻过程中,钨合金弹芯头部形成蘑菇头、头部晶粒被径向压扁;钨纤维复合材料弹芯头部在侵彻过程中,发生了绝热剪切破坏,具有自锐行为,且在弹芯头部形成很薄的边缘层,仅在这层中金属玻璃基体破碎,钨纤维断裂,温度升高,质量消蚀。钨纤维复合材料穿甲弹的侵彻能力明显高于钨合金穿甲弹。Two kinds of the penetrating rods, which were made of tungsten heavy alloy and tungstenfiber-reinforced Zr-based metallic glass composite material, respectively, were used to penetrate the 30CrMnMo steel target plates in the penetration experiments. In the penetration process, the tungsten heavy alloy rod head formed as a mushroom head and the grains in the head were radially compressed. But in the head of the tungsten-fiber-reinforced Zr-based metallic glass composite rod, the failure along the adiabatic shear bands was observed, which indicated that the tungsten-fiber-reinforced penetrators took on self-sharpening behaviors. A thin edge layer was developed in the tungstenfiber-reinforced penetrator head and only in this layer the metallic base was broken, the tungsten fibers were ruptured, the temperature increased and the mass was wasted. Evidently, the penetration ability of the tungsten-fiber-reinforced composite material penetrator is evidently greater than that of the tungsten alloy one.

关 键 词：爆炸力学 自锐现象 侵彻实验 钨纤维复合材料弹芯 蘑菇头 边缘层 

分 类 号：O385[理学—流体力学] TJ413.2[理学—力学]