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《Acta Armamentarii》 1998-02
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PENETRATION MECHANISM OF PRE-TORQUED TUNGSTEN HEAVY ALLOY PROJECTILES

Wei Zhigang; Hu Shisheng; Li Yongchi (University of Science and Technology of China, Hefei, 230027)Fan Cunshan (Inner Mongolia Metals Research Institute)  
Deformation and failure mechanism of un-torqued and pre-torqued WHA projectiles was proposed. It appears that the presence of the matrix material has significant effect on the compressive dynamic properties of pre-torqued WHA.Deformation and failure mechanisms of pre-torqued WHA under compressive loading are suggested to explain the microstructural development. It is blieved that the ballistic performance of pre-torqued WHA is related to early localized failure caused by adiabatic shear. Ballistic testings of the two materials showed that the penetration performance of pre-torqued WHA has been improved significantly and there exists an optimal pre-torqued angle which is consistent with our analysis. Based on the mechanism, a projectile of more high performance is presented.
【CateGory Index】: TJ413.2
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