Numerical Simulation and Analysis on the Impact Effect of Cylindrical Projectile Impacting Shelled Explosive
The numerical simulation of shelled Comp.B explosive was studied following the Lee-Tarver ignition and growth model when it was impacted respectively by 4340 Steel,OFHC and 93#W projectile with the same mass; the influences on explosive detonation of the initiation process,the material of projectile and the L/D ratio of projectile were analyzed; the critical initiation speeds of the projectiles of three different materials with different L/D ratio were gained.In order to verify the simulation results,the questions were calculated by the theoretical simplified model,the results of the theoretical calculation and the numerical simulation accorded well based on critical energy criterion.The results show that the capability of igniting explosive,the first is 93#W,the second is OFHC,the last is 4340 Steel; The initiation point were not on the interface of shell and explosive,and the faster of the impacting velocity,the initiation point closer the interface; the bigger of the L/D ratio of projectile,the higher of the critical initiation speed.
Explosion Mechanics Cylindrical Projectile Impact Initiation Shelled Explosive Critical Initiation Speed
Yingzi Jiang Weili Wang Xuefeng Huang Lei FU Zhuangqing Fan
Naval Aeronautical and Astronautical University, Yantai, Shandong, 264001, China
国际会议
太原
英文
583-587
2013-03-22（万方平台首次上网日期，不代表论文的发表时间）