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 article, the authors compared the significant features of the normal impact of a single-sheet bumper shield to the features of debris clouds produced by a normal impact by nonspherical spheres.
29 citations
TL;DR: In this paper, the results of controlled experiments that were designed to test projectile points made from stones with varying impact strength were presented, showing that highly homogenous fine-grained materials with low impact strength (e.g., obsidian) perform well when penetrating elastic materials such as skin and muscle.
29 citations
Patent•
11 Sep 2002
TL;DR: In this paper, the authors describe a subsonic case with a tubular shape with an oppositely disposed head and a bore there between, where a primer is stored within the primer cavity and a projectile is disposed within the bore so as to close the open end of the cartridge case.
Abstract: A subsonic cartridge that enables a conventional automatic or semiautomatic weapon to fire a projectile at a subsonic velocity and cycle the weapon to eject the spent cartridge case, without the sonic report characteristic of supersonic projectile velocities. The cartridge includes a case having a tubular shape with an open end oppositely disposed head, and a bore therebetween. The head of the case includes a primer cavity, a web separating the primer cavity from the bore, and a flash hole through the web. A primer is stored within the primer cavity, and projectile is disposed within the bore so as to close the open end of the cartridge case. A charge cavity is delimited within the bore between the web and the projectile. The charge cavity is sized and shaped to contain a limited amount of propellant charge that propels the projectile from the cartridge case at a subsonic speed.
29 citations
01 Jan 2002
TL;DR: In this paper, an expression for work is used in conjunction with thermodynamic considerations to devise a simple estimate for mass lost by a high velocity projectile during the penetration process, and the result shows that the mass loss is directly proportional to the tunnel length and the target shear strength.
Abstract: Analytical models of the penetration process focus on estimating depth of penetration based on target density, target strength (sometimes associated with the unconfined compressive strength of the target for geological targets), the areal density of the penetrator (W/A), and the impact velocity. In this paper, an expression for work is used in conjunction with thermodynamic considerations to devise a simple estimate for mass lost by a high velocity projectile during the penetration process. The result shows that the mass loss is directly proportional to the tunnel length and the target shear strength. The constant of proportionality is not easy to deduce, however, in that it contains an unusual factor from the work analysis. A method for estimating target shear under high pressure from penetration experiments is introduced.Copyright © 2002 by ASME
29 citations
TL;DR: In this article, a numerical study using LS-DYNA is conducted at impact velocities between 540 m/s and 810m/s, where the major compositions of FE models are the same as those of experimental specimens which include steel wire mesh reinforced concrete (SWMRC) plates, UHMWPE fibre laminates, aluminium foam sheets and the protected UHSC.
29 citations