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首页> 美国政府科技报告 >Simulations of the Penetration of 6061-T6511 Aluminum Targets by Spherical-Nosed VAR 4340 Steel Projectiles; International Journal of Solids and Structures
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Simulations of the Penetration of 6061-T6511 Aluminum Targets by Spherical-Nosed VAR 4340 Steel Projectiles; International Journal of Solids and Structures

机译：用球形VaR 4340钢制弹丸模拟6061-T6511铝靶的侵彻;国际固体与结构杂志

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摘要

In this paper, a forcing function which is derived from a spherical-cavity expansion (SCE) analysis has been implemented in a transient dynamic finite element code. This implementation is capable of computing the structural and component responses of a projectile due to a three dimensional penetration event. Simulations are presented for 7.11-mm-diameter, 74.7-mm-long, spherical-nose, vacuum-arc-remelted (VAR) 4340 steel projectiles that penetrate 6061-T6511 aluminum targets. Final projectile configurations obtained from the simulations are compared with post-test radiographs obtained from the corresponding experiments. It is shown that the simulations accurately predict the permanent projectile deformation for three dimensional loadings due to incident pitch and yaw over a wide range of striking velocities.

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