Mechanics in Engineering ›› 2004, Vol. 26 ›› Issue (5): 0-0.doi: 10.6052/1000-0992-2003-294

• Mechanics in engigeering •    



  • Received:2003-07-10 Revised:2003-11-21 Online:2004-10-10 Published:2004-10-10

Abstract: A telescopic penetrator composed of long rod and long tube is designed to solve the problems caused by slender projectile (large length / diameter ratio). By means of experiments and numerical simulations, the performances of long tube and long rod with the same mass and length in the same material normally against semi-infinite RHA(rolled homogeneous armor) are compared. The penetration patterns of the long tube and long rod are described. The relationships of velocity vs. time and mass vs. time for two kinds of penetrators are also obtained. Both the experimental and the numerical results indicate that the decreasing rates of long tubular velocity and mass are greater than that of long rod in the penetration course. Therefore, the penetration performance of the long tube is inferior to that of the long rod.

Key words: long tube, long rod, semi-infinite target, numerical