The influence of hard hat design features on head acceleration attenuation
This study evaluated the performance of 6 commercially available hard hat designs-differentiated by shell design, number of suspension points, and suspension tightening system-in regard to their ability to attenuate accelerations during vertical impacts to the head. Tests were conducted with impactor materials of steel, wood, and lead shot (resembling commonly seen materials in a construction site), weighing 1.8 and 3.6 kg and dropped from 1.83 m onto a Hybrid III head/neck assembly. All hard hats appreciably reduced head acceleration to the unprotected condition. However, neither the addition of extra suspension points nor variations in suspension tightening mechanism appreciably influenced performance. Therefore, these results indicate that additional features available in current hard hat designs do not improve protective capacity as related to head acceleration metrics.
Journal of Applied Biomechanics
Digital Object Identifier (DOI)
Dos Santos, A. A., Sorce, J., Schonning, A., & Bevill, G. (2021). The Influence of Hard Hat Design Features on Head Acceleration Attenuation. Journal of applied biomechanics, 37(2), 80–86. https://doi.org/10.1123/jab.2020-0182