Projectile

TL;DR: Based on the dimensional analysis of concrete penetration by a non-deformable projectile and an analytical penetration model, two dimensionless numbers, i.e., the impact function I and the geometry function of projectile N are defined and used in a dimensionless formula to predict the penetration depth.

TL;DR: In this paper, an analytical model for the ballistic impact response of fibrous materials of interest in body armor applications is presented, focusing on an un-tensioned 2D membrane impacted transversely by a blunt-nosed projectile, a problem that has remained unsolved for a half a century.

TL;DR: In this article, a general scaling model is defined which allows the extrapolation of small-scale collisional fragmentation experiment results, and existing collisional theories are considered within its framework.

TL;DR: In this paper, numerical simulations of the problem investigated experimentally are described, and a constitutive model of viscoplasticity and ductile damage for projectile impact has earlier been developed and implemented in the explicit finite element code LS-DYNA.

TL;DR: In this article, the authors conducted depth of penetration experiments in concrete targets with 3.0 caliber-radius-head, steel rod projectiles and found that penetration depth increased as striking velocity increased.