A NEW MODEL FOR ERODING PROJECTILE PENETRATION
The model of Tate and Alekseevskii (T&A) yields projectile length L and penetration depth P with eroding projectiles 1-3. It uses the yield strength YP of the projectile material, the penetration resistance RT of the target material and the corresponding densities ρP and ρT. The front penetrates the target with the velocity u, which is lower than the projectile velocity v. In the new model the hydrodynamic relation in the model of T&A is replaced by energy conservation in combination with a natural model for the hole diameter DT versus v. Thereby mass conservation is achieved, friction effects are accounted for and transition from rigid to eroding penetration is explained. The model of T&A does not account for conservation of mass and energy or for friction. Moreover, it predicts penetration depth without the corresponding hole diameter. Therefore it cannot describe the transition from rigid to eroding penetration.
Gunnar Wijk
Amatorvagen 55, 122 40 Enskede, Sweden
国际会议
25th International Symposium on Ballistics(第25届国际弹道会议)
北京
英文
1078-1086
2010-05-17（万方平台首次上网日期，不代表论文的发表时间）