Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
808790 | Theoretical and Applied Fracture Mechanics | 2007 | 7 Pages |
Abstract
The numerical program LS-DYNA, is used to simulate the process of the projectile with high rotating speed penetrating into the moving vehicular door. Because of the moving of the vehicular door, the projectile will turn, and the ballistic trajectory will migrate. The paper provides a method to calculate the projectile's angle of turning's curve. In the process of the penetration, the projectile's moving speed is 300Â m/s, rotating speed is 0, 3600Â n/s and 6370Â n/s. The vehicular door's moving speed is 0, 40Â m/s and 80Â m/s. The projectile is the semi-sphere nose projectile whose diameter is 7.62Â mm; the vehicular door's thickness is 2Â mm. The material model is the JOHN-COOK material model that can characterize strain, strain rate hardening and thermal softening effects. Through comparing with the results by simulation to study the effects of the projectile's final velocity, the angle of rotation and the ballistic trajectory's migration with different projectile's rotating speeds and the vehicular door's moving speeds.
Related Topics
Physical Sciences and Engineering
Engineering
Mechanical Engineering
Authors
J. Li, X.J. Li, Z. Zhao, Y.X. Ou, D.A. Jiang,