Preformed Fragment Velocity Distribution of Elliptical Cross-section Projectile

In the field of warhead design, non-cylindrical warhead, especially elliptical cross-section has received considerable attention. this study, initial velocity and distribution characteristics preformed fragments a columnar projectile with an were examined. To obtain in kind projectile, three projectiles different geometric sizes test based on static detonation tests. Then, numerical models have been established validated according to experiment results. Besides, two kinds initiation types studied by simulation model, results indicate that not only size but type do great influences fragment direction axis. An empirical model was proposed two-step acceleration progress, it good accordance