Influence of the Nose Structure on Penetration into Laminated Target

The experimental and simulation studies were carried out for the 4 different nose structures of rod penetrator oblique penetrating into three-layer laminated target.For the different types of nose structures, the ability of their penetration was assessed by crater formed in the erosion of quality as well as the kinetic energy behind target.Through the description of the penetration, the changing rules of kinetic energy with time were obtained for different nose structural penetrators respectively.The experimental and simulation results indicate that the nose structures are influential for crater forming, and then the process of crater formation will directly affect the subsequent process of penetration.From the investigation, it is found out that the aluminum ogive armor-piercing block nose of structure is the most favorable in the three-layer laminated targets of penetration, and we also have analysised the penetration advantage of this nose structure, which will serve as a reference to optimize the structure of other similar penetrators.