Impact attenuation of user-centred bicycle helmet design with different foam densities

Mustafa, H, Pang, T, Ellena, T and Nasir, S 2019, 'Impact attenuation of user-centred bicycle helmet design with different foam densities', Journal of Physics: Conference Series, vol. 1150, no. 1, pp. 1-8.


Document type: Journal Article
Collection: Journal Articles

Title Impact attenuation of user-centred bicycle helmet design with different foam densities
Author(s) Mustafa, H
Pang, T
Ellena, T
Nasir, S
Year 2019
Journal name Journal of Physics: Conference Series
Volume number 1150
Issue number 1
Start page 1
End page 8
Total pages 8
Publisher Institute of Physics
Abstract One possible solution to overcome helmet fit problem for each user is the customized "user-centred" or "subject-specific" helmet design approach. This study sets out to determine the effect of the user-centred helmet design with different foam density (from 50 kgm -3 to 100 kgm -3 ) on the impact attenuation of the bicycle helmet. A user-centred helmet was designed to follow the shape of the individual head shape of a participant. Reverse engineering method was applied to obtain the digital models. A validated finite element simulation model of the drop impact of bicycle helmet was used to test the impact attenuation. It was found that the user-centred helmet HP1 recorded a significant improvement in HFI when compared to the original helmet A clear difference was observed for each helmet at different density values at all locations, especially between an EPS density of 64 kgm -3 and 100 kgm -3 . In addition, a similar pattern of PLA versus density curves was also observed at each impact location.
Subject Numerical Modelling and Mechanical Characterisation
Keyword(s) user-centered
helmet
Finite element
impact
DOI - identifier 10.1088/1742-6596/1150/1/012043
Copyright notice © Published under licence by IOP Publishing Ltd.
ISSN 1742-6588
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