Topic
Projectile
About: Projectile is a research topic. Over the lifetime, 13047 publications have been published within this topic receiving 115563 citations.
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TL;DR: In this paper, the effect of the target damage caused by a long tungsten projectile on the constitutive equation was investigated through an improved theoretical model, based on conventional quasi-static cavity expansion theory, and a few useful relations of target resistance and the penetration velocity were derived from the model and the stationary incompressible hydrodynamic theory.
35 citations
Patent•
10 Jun 1985TL;DR: In this article, a hollow point lead bullet is provided with an aluminum jacket of sufficient hardness to avoid fouling the pistol barrel and which allows the cartridge containing the projectile to feed reliably in autoloading pistols and yet does not restrict normal expansion of the bullet upon impact with the target.
Abstract: A projectile for a centerfire cartridge that achieves maximum energy transfer with limited target penetration when fired from snub-nosed pistols. A hollow point lead bullet is provided with an aluminum jacket of sufficient hardness to avoid fouling the pistol barrel and which allows the cartridge containing the projectile to feed reliably in auto-loading pistols and yet does not restrict normal expansion of the bullet upon impact with the target. The jacket extends into the nose recess of the bullet and covers the peripheral portion of the bullet base, whereby the jacket is securely fastened to the bullet and separation subsequent to impact is prevented. The jacket is uniformly notched at the nosetip annulus to weaken the aluminum jacket and promote upset at surprisingly low impact velocities. A method of fabricating the projectile is also disclosed in which a cup-shaped aluminum jacket is partially filled with a lead core and simultaneously the cup base is notched before being formed into a hollow point bullet nose configuration. The notches can thus be uniformly controlled in contrast to slitting or cutting before or after forming in which the sharpness and force applied to the cutting knife governs the size of the slit or cut in a hard to control fashion.
35 citations
TL;DR: In this paper, an analytical model has been developed in order to predict the residual velocity of a cylindrical steel projectile, after impacting into a woven carbon/epoxy thin laminate, based in an energy balance, in which the kinetic projectile energy is absorbed by the laminate through three different mechanisms: linear momentum transfer, fiber failure and laminate crushing.
Abstract: In this work an analytical model has been developed in order to predict the residual velocity of a cylindrical steel projectile, after impacting into a woven carbon/epoxy thin laminate. The model is based in an energy balance, in which the kinetic projectile energy is absorbed by the laminate through three different mechanisms: linear momentum transfer, fiber failure and laminate crushing. This last mechanism needs the quantification of the through-thickness compressive strength, which has been evaluated by means of quasi-static punch tests. Finally, high velocity impact tests have been accomplished in a wide range of velocities, to validate the model.
35 citations
TL;DR: In this paper, the authors investigated the behavior of K-shell ionization probabilities for heavy charged projectiles scattered at large angles in the SCA with hyperbolic trajectories and both relativistic and nonrelativistic functions.
Abstract: The behaviour ofK-shell ionization probabilities for heavy charged projectiles scattered at large angles is investigated in the SCA with hyperbolic trajectories and both relativistic and nonrelativistic functions. It is found that the increase of ionization probabilities with increasing projectile scattering angle will be less pronounced for the heavy targets.
35 citations