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Appl. Sci. 2017, 7(3), 279; doi:10.3390/app7030279

A Finite Element Investigation into the Impact Performance of an Open-Face Motorcycle Helmet with Ventilation Slots

Department of Mechanical Engineering, Advanced Institute of Manufacturing for High-tech Innovations, National Chung Cheng University, 168 University Rd., Minhsiung, Chiayi 62102, Taiwan
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Academic Editor: Stefano Invernizzi
Received: 11 January 2017 / Revised: 6 March 2017 / Accepted: 6 March 2017 / Published: 16 March 2017
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Abstract

Motorcycle helmets are essential for reducing the risk of head injuries in the event of an impact. However, during the design of helmets, a compromise must be made between user safety and user comfort. Accordingly, the present study proposes a novel open-face helmet design, in which the helmet features three ventilation slots in the upper-head region. Finite element analysis (FEA) models were constructed for both a prototype helmet design, and three traditional helmet designs (full-face, open-face, and half-face helmets). In simulating the proposed open-face helmet, this study considered three different ventilation slot widths, namely 8, 14, and 18 mm. The simulation results showed that of all the helmet designs, the half-face helmet resulted in the greatest headform acceleration (303 G). The internal ventilation helmet achieved a lower peak acceleration than that of the full-face helmet. By contrast, the proposed open-face helmet with ventilation slots resulted in the lowest acceleration, irrespective of the ventilation slot width. The 8-mm ventilation slot width resulted in the optimal impact performance level (i.e., a peak headform acceleration of 160 G). Overall, the results suggest that the proposed open-face helmet design with ventilation slots provides a promising solution for ensuring both user protection and user comfort in warm climates. View Full-Text
Keywords: finite element analysis; motorcycle helmet; impact severity; head injury; safety finite element analysis; motorcycle helmet; impact severity; head injury; safety
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Liu, D.-S.; Chen, Y.-T. A Finite Element Investigation into the Impact Performance of an Open-Face Motorcycle Helmet with Ventilation Slots. Appl. Sci. 2017, 7, 279.

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