Numerical simulation study of tungsten alloy segmented rod penetration into steel target

Long rod projectile has strong penetration capability due to its high specific kinetic energy, however there exists a limit value to improve its penetration depth by increasing the aspect ratio. A higher penetration efficiency can be obtained by equal-mass segmented rod under certain conditions. Numerical simulation study of tungsten alloy segmented rod penetrating semi- infinite steel target with the speed of 1000m/s-3000m/s was carried out. Penetration process of segmented rods were analysed and compared with the equal-mass long rods. The penetration capability of segmented rods with different number of segments and different speeds on the semi-infinite steel target was studied, and the penetration mechanism was analysed. The numerical simulation results of the ideal segmented rod penetration on thick targets can provide a reference for its practical application.