Numerical and Experimental Analysis of Aramid Composites Against Ballistic Impact

In this work, an experimental and numerical study of the mechanical behaviour of combat helmets against ballistic impact of spherical projectiles of 1.7 g has been carried out. A numerical model, that has been calibrated and validated with experimental results of plates with different thicknesses, has been developed. Once the model has been validated, experimental tests have been carried out on the combat helmet. To conclude, it is noteworthy that the location of the impact on the helmet has a significant influence on the ballistic limit. It should be noted that the numerical model includes each layer of the combat helmet which may be beneficial for future research on helmets by using aramid or other materials.