Ballistic Impact Resistance
Mostrando 1-9 de 9 artigos, teses e dissertações.
-
1. Evaluation of the Projectile's loss of Energy in Polyester Composite Reinforced with Fique Fiber and Fabric
Firearms threat has always been a matter of personal concern, especially to soldiers in armed conflicts as well as police officers and civilians involved with public security. A multilayered armor system (MAS) is intended to personal protection against high kinetic energy ammunition, such as that used in rifles. MAS layers are normally composed of a front ce
Mat. Res.. Publicado em: 21/10/2019
-
2. Aço de alta dureza para aplicação balística: propriedades mecânicas
RESUMO Blindagens balísticas são projetadas a resistir determinadas ameaças, que dependem da aplicação. Estas ameaças podem ser geradas por projéteis de armas de fogo ou estilhaços provenientes de explosões com diferentes energias cinéticas. Os materiais normalmente utilizados para este propósito são metálicos, não metálicos e compósitos, sen
Matéria (Rio J.). Publicado em: 16/09/2019
-
3. Experimental study of brass properties through perforation tests using a thermal chamber for elevated temperatures
Abstract Experimental analysis on standard brass alloy has been carried out using a high pressure gas gun. Perforation tests have been performed for a variety of impact velocities from 40 to 120 m/s in order to study the material behaviour and to define failure modes. The main aim of the study has been to provide results using an innovative thermal chamber t
Lat. Am. j. solids struct.. Publicado em: 22/10/2018
-
4. An Empirical Study on Ballistic Resistance of Sandwich Targets with Aluminum Facesheets and Composite Core
Abstract This study attempted to examine the ballistic resistance of sandwich structures with aluminum facesheets, polyurethane core and polyurethane foam reinforced with aluminum pins. The main focus was on the effect of variations in density of core foam and the effect of adding different percentages of aluminum pins on energy absorption and ballistic resi
Lat. Am. j. solids struct.. Publicado em: 2017-06
-
5. Ballistic Limit of High-Strength Steel and Al7075-T6 Multi-Layered Plates Under 7.62-mm Armour Piercing Projectile Impact
Abstract This paper presents the computational-based ballistic limit of laminated metal panels comprised of high strength steel and aluminium alloy Al7075-T6 plate at different thickness combinations to necessitate the weight reduction of existing armour steel plate. The numerical models of monolithic configuration, double-layered configuration and triple-la
Lat. Am. j. solids struct.. Publicado em: 2016-09
-
6. A numerical study on the impact behavior of foam-cored cylindrical sandwich shells subjected to normal/oblique impact
Abstract Finite element analysis was used to investigate the impact behavior of the foam-cored sandwich shells under the ballistic impact. The ballistic limit, failure mode of the face-sheet and energy absorption of the uniform/graded core were discussed in this paper. Based on the impact phase diagrams, the effects of several factors (i.e. projectile shape
Lat. Am. j. solids struct.. Publicado em: 2015-11
-
7. Ballistic Efficiency of an Individual Epoxy Composite Reinforced with Sisal Fibers in Multilayered Armor
Sisal fibers are among the natural lignocellulosic ones with great impact resistance for potential use in polymer composites. This work evaluates the ballistic efficiency of the distinct individual components of a multilayered armor. These include the front ceramic, the back metallic sheet and the intermediate layer as either the conventional aramid fabric o
Mat. Res.. Publicado em: 23/10/2015
-
8. Estudo do efeito da delaminação nas propriedades mecânicas de um vidro com resistência balística
O vidro com resistência balística é composto por camadas de vidro, policarbonato ou similares, poliuretano e poli(vinil butiral) e uma resina que por meio de um processo de autoclavagem une os materiais obtendo as propriedades desejadas. As espessuras bem como, a quantidade de lâminas variam de acordo com o nível de resistência balística que se deseja
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 05/05/2011
-
9. Desenvolvimento e avaliaÃÃo de um escudo polimÃrico para minimizar a quebra de isoladores de vidro por vandalismo em linhas de transmissÃo
Electrical insulators are largely employed in the hot lines to isolate the electricity conductors from the earth and suppor them at the towers. Nowadays, there are several kinds of isolatores for such application. Particularly, the glass insulators are largely employed in Brazil, and it is known to have a long useful life, able to reach more than 40 years. F
Publicado em: 2003