PENETRATION OF POROUS JETS
The mass density of charge jets formed from porous liners, made of compressed powder, diminishes with ongoing time of flight. A model was developed based on the assumption that each jet element acquires a radial velocity component, Vtr, due to a friction mechanism inside the jet. Comparing the developed model results, by employing the SCAN semi-analytical code, with the experimental data of a penetration depth of a porous jet versus time, we found that agreement with the data for Vtr=3.8 m/sec was excellent. With this fitted value the SCAN code yielded the characteristics of the jet parameters change as a function of the penetration, explaining the source of the benefit of using porous liners in the penetration of concrete and sediment materials. The model opens the way to detailed analysis of where and when the use of porous liners is preferable to the use of solid ones, and vice versa. The details are explained in full in the complete paper.
Meir Mayseless Eitan Hirsch
IMI, P.O.Box 1044 Ramat Hasharon 47100, Israel Tachkemony St. 6, Netanya, 42611 Israel
国际会议
25th International Symposium on Ballistics(第25届国际弹道会议)
北京
英文
759-763
2010-05-17（万方平台首次上网日期，不代表论文的发表时间）