Results 191 to 200 of about 9,934 (237)
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Relationship between isokinetic performance and ballistic movement
European Journal of Applied Physiology and Occupational Physiology, 1983The present experiments were carried out to assess the relationship between the mechanical behaviour of the leg extensor muscles in 12 male athletes during activities of a ballistic type and torque production, during: (1) torque production during isokinetic contraction: (2) ballistic type activities (vertical jumps from statis position = SJ, with ...
C, Bosco, P, Mognoni, P, Luhtanen
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A Study on the Ballistic Performance of Composites
Macromolecular Symposia, 2006AbstractThe mechanical behaviour and ballistic performance of carbon, glass (E and S type), aramid and polyethylene fabric reinforced composites with different epoxy resins were studied. The specimens – produced by hand lay‐up method – were characterized by low velocity (Charpy and drop‐weight tests) and high velocity (two different calibre ballistic ...
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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 performance of multi-metal systems
International Journal of Protective Structures, 2020Ballistic resistance enhancement of armours and structures has been a prominent area of research over the years. Monolithic metallic plates have been the preferred choice for armours against high-velocity projectiles. High-strength steel is a popular choice for such systems.
Prabhani Ranaweera +4 more
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Ballistic Performance Prediction for SC Jets.
30th International Symposium on Ballistics, 2017The performance of a shaped charge warhead is usually predicted based on an experimentally determined standoff curve valid for a specific target material. However, with the increased variety of target compositions the traditional “shoot and score” approach is not feasible anymore – neither financially nor with respect to time. In this paper, a combined
THOMAS HARTMANN +2 more
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Ballistic performance of ceramic/composite structures
Ceramics International, 2019Abstract The aim of this study is to investigate the ballistic behavior of ceramic/composite structures with different thicknesses and different reinforcements, numerically. The guns were shot at four different velocities on composite models using armor-piercing 7.62 M61 AP projectiles.
Tepeduzu, Baha, KARAKUZU, RAMAZAN
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Performance analysis and enhancement of the ballistic range
Proceedings of the Institution of Mechanical Engineers, Part G: Journal of Aerospace Engineering, 2007The ballistic range has long been employed in a variety of engineering fields such as high-velocity impact engineering, projectile aerodynamics, and aeroballistics, since it can create an extremely high-pressure state in a very short time. Of many different types of ballistic ranges developed to date, a two-stage light-gas gun is being employed most ...
G Rajesh +3 more
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Measuring the Blast and Ballistic Performance of Armor
2015Abstract : This report relates to the discovery and development by the authors of armor designs using certain elastomers applied as coatings to the front side of rigid substrates, to increase the ballistic and blast performance of armor. This has led to much activity intended to optimize and exploit the technology for various applications, both ...
Raymond M Gamache, Charles M Roland
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The influence of projectile hardness on ballistic performance
International Journal of Impact Engineering, 1999The ballistic performance of 17 penetrator materials, representing 5 distinct steel alloys treated to various hardnesses along with one tungsten alloy, has been investigated. Residual lengths and velocities, as well as the ballistic limit velocities, were determined experimentally for each of the alloy types for length-to-diameter (L/D) ratio 10 ...
Charles E. Anderson Jr +3 more
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Processing and Ballistic Performance of Al2O3TiB2 Composites
2008Early research on Al 2 O 3 /TiB 2 composites focused on exploiting their potential as a low cost armor ceramic. Limited ballistic data indicated that the microstructure had a dramatic effect on ballistic performance. In some cases, the penetration resistance of Al 2 O 3 /TiB 2 approached that of monolithic TiB 2 ceramics.
G. A. Gilde, J. W. Adams
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