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Experimental Investigation of Zr-Based Amorphous Alloy as a Shaped Charge Liner
Propellants, Explosives, Pyrotechnics ( IF 1.7 ) Pub Date : 2022-07-29 , DOI: 10.1002/prep.202200063 Jin Shi 1 , Zheng-xiang Huang 1 , Xu-dong Zu 1 , Q. Q. Xiao 1
Propellants, Explosives, Pyrotechnics ( IF 1.7 ) Pub Date : 2022-07-29 , DOI: 10.1002/prep.202200063 Jin Shi 1 , Zheng-xiang Huang 1 , Xu-dong Zu 1 , Q. Q. Xiao 1
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This study aimed to investigate the mechanical properties of Zr-based amorphous alloy at high strain rates and its use as a shaped charge liner. A split Hopkinson pressure bar (SHPB) was used to carry out dynamic mechanical performance tests, and a scanning electron microscope (SEM) was used to observe the fracture morphology of the test piece. The X-ray test of the jet formation and the static penetration test of the Zr-based amorphous alloy jet were performed. It was found that the amorphous alloy material exhibits typical brittle fracture characteristics under high strain-rate compression. As the strain rate increases, molten droplet-like structures appear in the fracture morphology, and the melting area is proportional to the strain rate. The Zr-based amorphous alloy liner forms a non-cohesive jet driven by explosive explosion. The actual projection angle of the liner is slightly larger than the theoretical value of Taylor's projection angle because of the unique mechanical properties and fracture mechanism, while the collapse angle is slightly smaller. Compared with copper jet penetrating concrete, the aperture of Zr-based amorphous alloy jet is increased by 58 % and the caving volume is increased by 32 times. The results provide reference for the application of Zr-based amorphous alloy in the field of shaped charge liner.
中文翻译：
锆基非晶合金作为聚能装药衬里的实验研究
本研究旨在研究 Zr 基非晶合金在高应变率下的机械性能及其作为聚能射孔弹衬里的用途。采用分体式霍普金森压力棒（SHPB）进行动态力学性能测试，采用扫描电镜（SEM）观察试件的断口形貌。进行了射流形成的X射线测试和Zr基非晶合金射流的静态穿透测试。结果表明，非晶合金材料在高应变率压缩下表现出典型的脆性断裂特性。随着应变速率的增加，断口形貌出现熔滴状结构，熔融面积与应变速率成正比。Zr基非晶合金内衬形成由爆炸驱动的非凝聚射流。由于独特的力学性能和断裂机理，衬管的实际投影角略大于泰勒投影角的理论值，而塌陷角则略小。与铜射流渗透混凝土相比，Zr基非晶合金射流孔径增加58%，崩落量增加32倍。研究结果为Zr基非晶合金在聚能射孔弹衬管领域的应用提供参考。Zr基非晶合金射流孔径增加58%，崩落体积增加32倍。研究结果为Zr基非晶合金在聚能射孔弹衬管领域的应用提供参考。Zr基非晶合金射流孔径增加58%，崩落体积增加32倍。研究结果为Zr基非晶合金在聚能射孔弹衬管领域的应用提供参考。
更新日期：2022-07-29
中文翻译：
锆基非晶合金作为聚能装药衬里的实验研究
本研究旨在研究 Zr 基非晶合金在高应变率下的机械性能及其作为聚能射孔弹衬里的用途。采用分体式霍普金森压力棒（SHPB）进行动态力学性能测试，采用扫描电镜（SEM）观察试件的断口形貌。进行了射流形成的X射线测试和Zr基非晶合金射流的静态穿透测试。结果表明，非晶合金材料在高应变率压缩下表现出典型的脆性断裂特性。随着应变速率的增加，断口形貌出现熔滴状结构，熔融面积与应变速率成正比。Zr基非晶合金内衬形成由爆炸驱动的非凝聚射流。由于独特的力学性能和断裂机理，衬管的实际投影角略大于泰勒投影角的理论值，而塌陷角则略小。与铜射流渗透混凝土相比，Zr基非晶合金射流孔径增加58%，崩落量增加32倍。研究结果为Zr基非晶合金在聚能射孔弹衬管领域的应用提供参考。Zr基非晶合金射流孔径增加58%，崩落体积增加32倍。研究结果为Zr基非晶合金在聚能射孔弹衬管领域的应用提供参考。Zr基非晶合金射流孔径增加58%，崩落体积增加32倍。研究结果为Zr基非晶合金在聚能射孔弹衬管领域的应用提供参考。
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