Results 211 to 220 of about 7,892,925 (256)
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Effect of ballistic impacts on batteries and the potential for injury
BMJ Military Health, 2019Introduction On military operations, ballistic impact damage is possible to lithium ion (Li-ion) batteries worn on the body by military personnel and the potential for exothermic reactions may result in injury. This paper investigated the effect of impact on batteries that might be worn in front or behind body ...
Alex Rabbitt, I Horsfall, D J Carr
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Journal of Forensic Sciences, 2014
AbstractModern ballistic helmets defeat penetrating bullets by energy transfer from the projectile to the helmet, producing helmet deformation. This deformation may cause severe injuries without completely perforating the helmet, termed “behind armor blunt trauma” (BABT).
Karin A, Rafaels +11 more
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AbstractModern ballistic helmets defeat penetrating bullets by energy transfer from the projectile to the helmet, producing helmet deformation. This deformation may cause severe injuries without completely perforating the helmet, termed “behind armor blunt trauma” (BABT).
Karin A, Rafaels +11 more
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IEEE Transactions on Electron Devices, 2008
A drift-diffusion-like formulation for including ballistic and quasi-ballistic transport in the simulation of double-gate MOSFETs has been implemented in a technology computer-aided design (TCAD) simulator. This model is based on a description of the quasi-ballistic mobility through a dynamical description of the mean free path.
Martinie, Sebastien +4 more
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A drift-diffusion-like formulation for including ballistic and quasi-ballistic transport in the simulation of double-gate MOSFETs has been implemented in a technology computer-aided design (TCAD) simulator. This model is based on a description of the quasi-ballistic mobility through a dynamical description of the mean free path.
Martinie, Sebastien +4 more
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Ballistic Impact Testing of Composite Structures
Earth & Space 2006, 2006This article deals with techniques which have been developed to study the behavior of composite materials and structures under high speed ballistic impact conditions at the NASA Glenn Research Center (GRC) Ballistic Impact Facility. The techniques include launching systems, fixture methods, imaging systems and instrumentation systems.
J. Michael Pereira +2 more
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On the Ballistic Impact of Textile Body Armor
Journal of Applied Mechanics, 1975A mathematical model is developed and methods of analysis are formulated for determining the structural response of textile fabric flat panels subjected to ballistic impact by a dense projectile. A stepwise procedure in time is formulated which is suitable for either desk calculator use or for a digital computer in calculating strains, projectile ...
J. R. Vinson, J. A. Zukas
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Synthesis of Nanocomposites by Ballistic Impaction of Nanoparticles
Design, Synthesis, and Applications, 2005We are investigating ballistic impact assembly of nanoparticles to form a new class of materials for superhard coatings and micromolded MEMS parts. Nanoparticles are generated by dissociating vapor-phase reactants injected downstream of a thermal plasma and expanding the resultant flow through a converging nozzle into a low-pressure chamber.
R. Mukherjee +7 more
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Backplane response of ballistically impacted composites
Le Journal de Physique IV, 2000The ballistic impact response of woven composite helmet materials was analysed both experimentally and numerically. Ballistic impact tests were performed on flat panels, using different projectiles with a range of impact velocities. The p penetration and backplane response of the composite panels were measured.
J. van Hoof, M. J. Worswick, K. Williams
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A study of fragmentation in the ballistic impact of ceramics
International Journal of Impact Engineering, 1994Summary Experiments in which both confined and unconfined ceramic targets are perforated by pointed and blunt projectiles are described, and a correlation is established between increased degree of fragmentation and reduced ceramic toughness. Front confinement of the ceramic results in greater overall fragmentation, however fewer, very fine fragments
R.L. Woodward +5 more
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Ballistic impact efficiency of polymer composites
Composite Structures, 2003The use of polymer-based composite materials in the aircraft and automotive industries has been rapidly increasing. In this paper the impact efficiency of some polymer-based composites is experimentally studied. This involved the manufacture of a quantity of thermosetting resin composite specimens using the hand lay-up process.
F. Findik, N. Tarim
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Crack behavior of ballistically impacted ceramic
AIP Conference Proceedings, 2000A hot isostatically pressed (HIP) assembly of titanium alloy encapsulated AD995 ceramic, subjected to ballistic impact, is studied in detail. The crack behavior of ceramic confined in this way is studied in a combined experimental and computational effort. Fabrication of the HIP assembly is described.
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