Performance of jute non-woven mat reinforced polyester matrix composite in multilayered armor

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

“…However, level IIIA ballistic vests, which protect against ammunition with an impact velocity lower than 450 m/s, such as 9 mm and .44 Magnum bullets, are often transformed into level III for protection against 7.62 mm bullets by placing inserts (armor plates) on the vest front, which was the objective of the present work. A comparison between the results obtained in previous works for the MASs with three layers [ 12 , 13 , 14 , 15 , 16 , 17 , 18 , 19 , 20 , 21 , 22 , 27 , 28 , 29 , 30 , 31 ] and the BFS depth of hard armor systems (without the Al alloy) tested in this work is shown in Figure 4 . All MASs presented in this figure have a composite plate with 30 vol % of natural fiber, which is the same as the volume fraction for the tested PALF composite.…”

“…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 ].…”

“… Comparative graph showing multilayered armor systems (MASs) with three layers (ceramic + natural fiber composite + Al alloy) [ 12 , 13 , 14 , 15 , 16 , 17 , 18 , 19 , 20 , 21 , 22 , 27 , 28 , 29 , 30 , 31 ] and the armor plates of the present work (PW). …”

“…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.…”

Polylactic acid-lauryl functionalized nanocellulose nanocomposites: Microstructural, thermo-mechanical and gas transport properties

“…This make natural fibers a good candidate as fillers in composite made by biopolymers. In particular, great attention was paid to the preparation of bio-composite made by PLA and different types of natural fibers such as flax [14][15][16][17], kenaf [18][19][20], jute [21][22][23], hemp [24], palm fibers [25]. However, some drawbacks are needed to be solved for the expansion of these bio-composite like limited mechanical durability, excess water absorption and poor thermal properties [26].…”