Thickness assessment and statistical optimization of a 3-layered armor system with ceramic front and curaua fabric composite/aluminum alloy backing

Braga, Fábio de Oliveira; Lopes, Pedro Henrique Lameirão Machado; Oliveira, Michelle Souza; Monteiro, Sérgio Neves; Lima, Enrique Luis

doi:10.1016/j.compositesb.2018.11.128

Cited by 22 publications

(5 citation statements)

References 23 publications

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“…The reason for the unexpected ballistic performance of natural fiber composites is that the role played by the MAS second layer in impact energy dissipation depends on the fiber’s ability to capture ceramic/bullet fragments, but not on the fiber strength [ 24 ]. In addition, the articles cited by Benzait and Trabzon [ 10 ] and other recent works [ 25 , 26 , 27 , 28 , 29 , 30 , 31 , 32 , 33 ] also confirmed the superior ballistic performance of natural fiber composites as an MAS second layer. It is worth mentioning the significant number of publications focused on ballistic performance of hybrid composites reinforced with synthetic and natural fibers [ 34 , 35 , 36 , 37 , 38 ].…”

Section: Introductionmentioning

confidence: 63%

“…Although the use of natural fiber composites in ballistic armors has been reported in many papers [ 13 , 14 , 15 , 16 , 17 , 18 , 19 , 20 , 21 , 22 , 23 , 24 , 25 , 26 , 27 , 28 , 29 , 30 , 31 , 32 ], most of the published work thus far involves a possible third layer in the MAS. This layer is an aluminum alloy, which compromises the armor vest weight.…”

Section: Introductionmentioning

confidence: 99%

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Composites with Natural Fibers and Conventional Materials Applied in a Hard Armor: A Comparison

et al. 2020

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Natural-fiber-reinforced polymer composites have recently drawn attention as new materials for ballistic armor due to sustainability benefits and lower cost as compared to conventional synthetic fibers, such as aramid and ultra-high-molecular-weight polyethylene (UHMWPE). In the present work, a comparison was carried out between the ballistic performance of UHMWPE composite, commercially known as Dyneema, and epoxy composite reinforced with 30 vol % natural fibers extracted from pineapple leaves (PALF) in a hard armor system. This hard armor system aims to provide additional protection to conventional level IIIA ballistic armor vests, made with Kevlar, by introducing the PALF composite plate, effectively changing the ballistic armor into level III. This level of protection allows the ballistic armor to be safely subjected to higher impact projectiles, such as 7.62 mm caliber rifle ammunition. The results indicate that a hard armor with a ceramic front followed by the PALF/epoxy composite meets the National Institute of Justice (NIJ) international standard for level III protection and performs comparably to that of the Dyneema plate, commonly used in armor vests.

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Section: Introductionmentioning

confidence: 63%

Section: Introductionmentioning

confidence: 99%

Composites with Natural Fibers and Conventional Materials Applied in a Hard Armor: A Comparison

et al. 2020

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“…Therefore, many scholars at home and abroad have studied them one after another. [4][5][6] Cai and Zhou 7 studied low velocity impact composite laminates. The relationship between the low velocity impact velocity and the residual compressive strength of composite laminates was studied under the impact of the drop hammer, taking the low velocity motion of the drop hammer in the laboratory as the initial velocity.…”

Section: Introductionmentioning

confidence: 99%

Low-velocity impact performance of ultra-high molecular weight polyethylene/aramid-polyester core-spun yarn hybrid composites

Guo

Chang

et al. 2023

Journal of Industrial Textiles

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The impact resistant composite has excellent energy absorption efficiency, but the structure and material selection of the composite have great influence on its energy absorption. In order to explore the effect of structure on the energy absorption of Ultra-high molecular weight polyethylene (UHMWPE) composites and the application potential of new aramid core-spun yarn and new polyester core-spun yarn in impact resistant composites. The UHMWPE composites with different fiber orientations and stacking sequences structure, as well as the new hybrid composites containing aramid core-spun yarn and polyester core-spun yarn were tested by low-velocity impact test and scanning electron microscope (SEM) observation. The differences of energy absorption of UHMWPE composites with different structures and the advantages of the new hybrid composites were analyzed. The results show that the energy absorption of the 45°/0°/90°/−45° UHMWPE composite is 15% and 86% higher than that of the 0°/90°/0°/90°UHMWPE composite and the 0°/90°/45°/−45° UHMWPE composite, respectively, which is the best structure among the three composites. The energy absorption performance of the composites introduced with aramid core-spun yarn and polyester core-spun yarn were improved by 223% and 202%, respectively, so that the energy absorption performance was significantly improved by new yarns.

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“…Deforestation through human activities and global warming has been a significant challenge for materials scientists [ 14 ]. Consequently, natural fiber reinforced composites have been increasingly used in several technological sectors as exemplified by the diversified application of curaua fiber (Ananas erectifolius) incorporated into polymer matrix for civil construction [ 15 , 16 ], automotive [ 17 ], aeronautic [ 1 ] and defense [ 18 , 19 , 20 ].…”

Section: Introductionmentioning

confidence: 99%

Thermal Behavior of Curaua-Aramid Hybrid Laminated Composites for Ballistic Helmet

Meliande

Oliveira

Lemos³

et al. 2023

Polymers

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Hybrid composites are expanding applications in cutting-edge technology industries, which need materials capable of meeting combined properties in order to guarantee high performance and cost-effectiveness. This original article aimed for the first time to investigate the hybrid laminated composite thermal behavior, made of two types of fibers: synthetic Twaron® fabric and natural curaua non-woven mat, reinforcing epoxy matrix. The composite processing was based on the ballistic helmets methodology from the North American Personal Armor System for Ground Troops, currently used by the Brazilian Army, aiming at reduced costs, total weight, and environmental impact associated with the material without compromising ballistic performance. Thermal properties of plain epoxy, aramid fabric, and curaua mat were evaluated, as well as the other five configurations of hybrid laminated composites. These properties were compared using thermogravimetric analysis (TGA) with its derivative (DTG), differential thermal analysis (DTA), and thermomechanical analysis (TMA). The results showed that the plain epoxy begins thermal degradation at 208 °C while the curaua mat at 231 °C and the aramid fabric at 477 °C. The hybrid laminated composites curves showed two or three inflections in terms of mass loss. The only sample that underwent thermal expansion was the five-aramid and three-curaua layers composite. In the third analyzed temperature interval, related to the glass transition temperature of the composites, there was, in general, an increasing thermal stability behavior.

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Thickness assessment and statistical optimization of a 3-layered armor system with ceramic front and curaua fabric composite/aluminum alloy backing

Cited by 22 publications

References 23 publications

Composites with Natural Fibers and Conventional Materials Applied in a Hard Armor: A Comparison

Composites with Natural Fibers and Conventional Materials Applied in a Hard Armor: A Comparison

Low-velocity impact performance of ultra-high molecular weight polyethylene/aramid-polyester core-spun yarn hybrid composites

Thermal Behavior of Curaua-Aramid Hybrid Laminated Composites for Ballistic Helmet

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