4.7 Article

Ballistic properties of curaua-aramid laminated hybrid composites for military helmet

Journal

JOURNAL OF MATERIALS RESEARCH AND TECHNOLOGY-JMR&T
Volume 25, Issue -, Pages 3943-3956

Publisher

ELSEVIER
DOI: 10.1016/j.jmrt.2023.06.200

Keywords

Natural fiber; Aramid; Curaua non -woven mat; Hybrid composite; Ballistic helmet

Ask authors/readers for more resources

This research aimed to develop laminated hybrid-composites using aramid woven fabric and curaua non-woven mat for military ballistic helmets. The study found that composites with one layer of curaua and 15 layers of aramid achieved the highest level of ballistic protection. The positioning of the curaua non-woven mat behind the aramid woven fabric, as well as the lower total number of layers, reduced the ballistic resistance of the hybrid composites.
The present research aimed to develop laminated hybrid-composite with aramid woven fabric and curaua non-woven mat, to evaluate the possibility of using as military ballistic helmets. It explores the potential of hybrid solutions, which are more socio-environmentally sustainable and cheaper. All hybrid composites were produced in non -alternate layers model. In addition to hybrid configurations, epoxy laminated composites reinforced with only aramid woven fabric or only curaua non-woven mat were also investigated, with 73 and 58 vol.% of reinforcement, respectively. The cold compression molding process was used for all composites. The ballistic characterization was performed through protection level determination and residual velocity tests to estimate the ballistic limit and absorbed energy, with their corresponding reduction maps. As results, com-posites with 15 layers of aramid (52 vol.%) and one layer of curaua (15 vol.%) obtained the maximum level of ballistic protection. For composites with two layers of curaua the bal-listic limit estimate was 292 m/s, which is similar to 15% lower than the limit of the 9 mm projectile velocity corresponding to the maximum level (level II), compared to the composite commonly used in ballistic helmets. Curaua non-woven mat structure and its positioning behind the aramid woven fabric, as well as the lower total number of layers, reduced the ballistic resistance capacity of the hybrid composites. Although the proposed configura-tions with curaua non-woven mat did not meet the ballistic level requirement of the Brazilian COBRA helmet, these mentioned results are a strong indication of the enormous potential of hybrid composite for military helmet applications.

Authors

I am an author on this paper
Click your name to claim this paper and add it to your profile.

Reviews

Primary Rating

4.7
Not enough ratings

Secondary Ratings

Novelty
-
Significance
-
Scientific rigor
-
Rate this paper

Recommended

No Data Available
No Data Available