Results 201 to 210 of about 9,451 (248)

Impact of Ballistic and Quasi-Ballistic Transport on Performances of Double-Gate MOSFET-Based Circuits

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, Le Carval, Gilles, Munteanu, Daniela, Soliveres, S., Autran, Jean-Luc   +4 more
openaire   +2 more sources

Ballistic impact performance of metallic targets

Materials & Design, 2012
Abstract Performance of metallic targets under ballistic impact loading is presented. The entire ballistic impact event considering target performance can be divided into dynamic plastic penetration, spherical bulge formation, bulge advancement, plug formation and exit and projectile exit. Velocity, displacement, force, deceleration of the projectile
PALLETI, HNKT, GURUSAMY, S, KUMAR, S, SONI, R, JOHN, B, VAIDYA, R, BHOGE, A, NAIK, NK   +7 more
openaire   +2 more sources

Ballistic impact performance of composite targets

Materials & Design, 2013
Ballistic impact performance of structures made of polymer matrix composites is presented. During the ballistic impact event, the energy lost by the projectile is absorbed by the composite target through various energy absorbing mechanisms. Compression of the target directly below the projectile, compression in the region surrounding the impacted zone,
SHAKTIVESH, NAIR, NS, KUMAR, CVS, NAIK, NK   +3 more
openaire   +2 more sources

Ballistic Impact Testing of Composite Structures

Earth & Space 2006, 2006
This 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, Duane M. Revilock, Jr., William A. Arnold   +2 more
openaire   +1 more source

On the Ballistic Impact of Textile Body Armor

Journal of Applied Mechanics, 1975
A 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
openaire   +1 more source

Synthesis of Nanocomposites by Ballistic Impaction of Nanoparticles

Design, Synthesis, and Applications, 2005
We 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, W. M. Mook, J. Hafiz, X. Wang, W. W. Gerberich, J. V. R. Heberlein, P. H. McMurry, S. L. Girshick   +7 more
openaire   +1 more source

Polybenzoxazine Composites for Ballistic Impact Applications

2013
This chapter discusses the utilization of polybenzoxazine/urethane alloys with fine-tuning properties for ballistic impact composite application. The ballistic impact study of KevlarTM fiber-reinforced polybenzoxazine alloys under the test weapon with standard 124 grains round lead projectile and a copper outer coating (Full Metal Jacket) typically ...
Sarawut Rimdusit, Chanchira Jubsilp, Sunan Tiptipakorn   +2 more
openaire   +1 more source

Backplane response of ballistically impacted composites

Le Journal de Physique IV, 2000
The 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
openaire   +1 more source

A study of fragmentation in the ballistic impact of ceramics

International Journal of Impact Engineering, 1994
Summary 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, W.A. Gooch, R.G. O'Donnell, W.J. Perciballi, B.J. Baxter, S.D. Pattie   +5 more
openaire   +1 more source

Crack behavior of ballistically impacted ceramic

AIP Conference Proceedings, 2000
A 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.
openaire   +1 more source