Evaluation of resistance in transparent armor Level III of the NIJ 0108.01 Standard, in armored vehicles using pentolite explosive. Zehir A Cuevas1, John J Pinto2, Jorge E Fonseca3

Abstract

This research paper aims to initially determine the effect of breakthrough energy from pentolite charges on materials such as clear vehicle shields. INVESTIGACIONES CON POSIBILIDADES DE APLICACIÓN EN LA INGENIERÍA MILITAR- Artículo de investigación 86 ESING Página - REVISTA INGENIEROS MILITARES número 14, Año 2019, ISSN 2145-3144 / BOGOTÁ-COLOMBIA The study is carried out using the detonation pressure (Hess test) in contact of the explosive charge of pentolite with the shield. On the other hand, other tests or trials are also carried out to evaluate the behavior or affectation of the transparent shielding by means of the shock wave generated by the explosive charge of pentolite. The affectation or not of the armor is evaluated using the criteria of level III of the NIJ 0108.01 standard; focused this document on evaluation of these materials through impact tests from firearm projectiles generated by ammunition of different caliber. Because of this, the article presents the performance of the Hess test and the detonation of pentolite explosive charges (shock wave) in the armor by varying the thickness of the armor, the distance and amount of pentolite explosive charge. These tests were done in a similar way to the impact tests carried out with projectiles from firearms defined by the NIJ 0108.01 standard. In other words, the results of said tests on the transparent shield allow to initially estimate the evaluation of the detonation pressure by means of the diameter of rupture in the material; as well as its fragmentation and form of breakage by varying the thickness of the armor, the distance and amount of explosive charge of pentolite. Finally, the article presents the results of the pentolite in the transparent shield using the qualitative estimation of the explosive's breaking energy in the Hess test. On the other hand, it also illustrates the behavior of the transparent shield in relation to variables of the thickness of the shield, fragmentation of the material and radius of rupture. In short, it presents the evaluation of transparent shielding through the resistance of the material against fragmentation, material breakage in relation to the amount of explosive and the detonation distance of pentolite charges, giving it a starting point for the ballistic behavior of the pentolite with the criteria of the impact tests for ammunition established by the NIJ 0108.01 standard.