Modelling ballistic impact on military helmets: The relevance of projectile plasticity

Caçoilo, Andreia; Mourão, Rodrigo; Teixeira-Dias, Filipe; Azevedo, A.; Coghe, F.; Valente, R. A. F.

doi:10.1016/j.dt.2020.09.011

Cited by 17 publications

(5 citation statements)

References 17 publications

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“…Esta normativa aplica al Pliego de Prescripciones Técnicas [15] para el suministro de cascos de combate a los Cuerpos y Fuerzas de Seguridad del Estado, junto con otras normativas de carácter nacional e internacional entre las que destacan STANAG 2902, STANAG 2920 y MIL-STD-662F entre otras. [69] FMJ 9 mm Kevlar 29 (t=10 mm) + Titanio Ti-6Al-4V La tabla 2.3 muestra una clasificación de los trabajos existentes de impacto balístico sobre material compuesto de aramida. Se han estructurado según la morfología del material, (placa plana o casco de combate) y, dentro de cada uno, atendiendo al tipo de análisis que se ha realizado, ya sea experimental, numéricó o analítico.…”

Section: Asociación Vpamunclassified

“…Por otro lado, recientemente [69] analizó la influencia de la plasticidad del proyectil en la absorción de energía durante un impacto de proyectil FMJ 9mm sobre un casco de combate montado sobre un modelo de dummy HIII, analizando la respuesta biomecánica del mismo.…”

Section: Asociación Vpamunclassified

“…Sin embargo, existe una carencia de estudios experimentales sobre caracterización del compuesto fibra-resina. La mayoría de estudios numéricos sobre impacto tanto en placa como en casco de combate [13,51,53,58,59,61,66,67,69,[115][116][117], adoptan los valores de dichos parámetros propuestos por Van Hoof [118] para el Kevlar R -29 (K-29). Como se describió en la sección 3.2, el material empleado en este trabajo es Kevlar R -129 (K-129), que es utilizado en la fabricación de los cascos de combate, objeto de estudio en esta tesis doctoral.…”

Section: Modelado De La Placa Plana De Compuesto De Aramidaunclassified

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Ballistic performance of aramid composite combat helmet for protection against small projectiles

Rubio

Rodríguez-Millán

Marco

et al. 2019

Composite Structures

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Section: Asociación Vpamunclassified

Section: Modelado De La Placa Plana De Compuesto De Aramidaunclassified

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Ballistic performance of aramid composite combat helmet for protection against small projectiles

Rubio

Rodríguez-Millán

Marco

et al. 2019

Composite Structures

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“…From the validation van Hoof didn't observed correlation between the numerical simulation and the ballistic test, therefore a "calibration" of the mechanical properties (strengths) was carried out to force a correlation. From this work, parameters of the Kevlar ® material were obtained that are still used today for ballistic studies on combat helmets [5][6][7][8][9][10][11][12], as shown in Table 1.…”

Section: Introductionmentioning

confidence: 99%

Production of Polyhydroxyalkanotes by an Extreme Halophilic Bacterium Halomonas gomseomensis Using Different Carbon Sources

Tejo-Valencia,

Cervantes-Uc,

Ramírez-Benitez

et al. 2024

Preprint

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Polyhydroxyalkanoates (PHAs) are natural polyesters consisting of various chains of hydroxyalkanoates (HAs) produced by microorganisms; this polyestres has attention due environmentally friendly compounds from renewable sources as a substitute to conventional petroleum-based plastics. The objective of this study consisted in evaluating the Genotypic characterization and production of polimer of a halobacterium isolated from hypersaline ponds located at Las Coloradas (Yucatan, Mexico). Characterization of polymer produced by this strain was also performed. We concluded that, the analyzes obtained from this work demonstrated that the JCCOL25.2 strain has a 99% similarity with Halomonas gomseomensis, and is capable of using different carbon sources to synthesize PHAs. The physicochemical analyzes allowed the identification of the biopolymer produced and classifying it as polyhydroxybutyrate (PHB), because the characteristics of this biopolymer have been reported for similar polymers. PHB has various applications in the pharmaceutical, medical, food and agronomy areas. Likewise, PHB has interesting properties for use in food packaging, due to its characteristics such as biodegradability, optical activity and good barrier properties. Finally, the significance and impact of our study, there is only one study published on the biosynthesis of PHA’s by H. gomseomensis strains, although the characterization of the obtained polymer was not report.

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“…Protection equipment falls into two categories: personal protective clothing and protection equipment. Both types provide protection/support against impact (a protective helmet, for example, can minimize the acceleration and pressure caused by an accident [29][30][31][32][33][34] ) and penetration (body armor and bulletproof vest [28,[35][36][37][38] ). Along with the protection from impacts and penetration, protection material should also provide comfort to a body.…”

Section: Introduction To Protection Clothing and Equipmentmentioning

confidence: 99%

Auxetic Materials for Personal Protection: A Review

Tahir

Zhang

2022

Physica Status Solidi (b)

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Life‐changing illnesses and fatalities caused by inefficient personal protective clothing and equipment are increasing day by day. The discrepancy between the test standards, environmental conditions, and infield collision is the reason why personal protection equipment and clothing have not yet decreased the number of injuries in various fields such as military and sports. To further increase the efficiency of personal protection materials, auxetic materials are suggested because of their high energy absorption, good permeability, form‐fitting ability, and high indentation resistance. Auxetic materials are nonconventional materials with a negative Poisson's ratio and can shrink under compression and expand when subjected to stretching. In comparison to nonauxetic conventional materials, auxetic materials have improved properties that can be useful for personal protection applications. This review focuses on the importance of auxetic materials for personal protection, focusing on reducing the chances of injury and what possible ideas can further benefit the protection products. The first part of the review discusses the auxetic structures and their protection applications followed by the fabrication of auxetic structures. The review will conclude with limitations, economic prospects, and what possible work can further improve the potential use of auxetic materials in personal protection.

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Modelling ballistic impact on military helmets: The relevance of projectile plasticity

Cited by 17 publications

References 17 publications

Ballistic performance of aramid composite combat helmet for protection against small projectiles

Ballistic performance of aramid composite combat helmet for protection against small projectiles

Production of Polyhydroxyalkanotes by an Extreme Halophilic Bacterium Halomonas gomseomensis Using Different Carbon Sources

Auxetic Materials for Personal Protection: A Review

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