Testing of Bicycle Helmets for Preadolescents

This study aims to provide guidelines for a helmet testing procedure especially designed for preadolescents which also takes incorrect use (misuse) into consideration. Based on recommendations from literature, helmets were first tested using a headform with flexible skin, and an add-on mass/inertia to account for the neck. Tests were performed at 6.5 m/s against a 30 degree anvil, both frontally and laterally, in an ideal and a real positioning (misuse) of the helmet. Second, a validated numerical model of one of the tested helmets was established. A parameter study was performed to expand the data of the experimental study. Experiments and simulations were evaluated by applying eleven head injury criteria and, if available, by considering the underlying injury risk curves. Selected tests were also evaluated with the THUMS v4.0 5th percentile female (AF05) head. The study shows that the approach to adjust mass and inertia of the impactor such to replicate the effect of the neck in oblique impact seems feasible. The study once again indicates the importance of friction: Therefore, the headform's skin should replicate frictional properties very well. The numerical study proved that the impact against a 30 degree anvil is a reasonable choice, maximising almost all criteria. Numerical and experimental studies show that misuse has no detrimental effect on impact protection performance.

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  • Supplemental Notes:
    • Abstract reprinted with permission of the International Council on the Biomechanics of Injury (IRCOBI).
  • Corporate Authors:

    International Research Council on Biomechanics of Injury (IRCOBI)

    Winkelriedstrasse 27
    Zurich,   Switzerland  CH-8006
  • Authors:
    • Klug, Corina
    • Feist, Florian
    • Tomasch, Ernst
  • Conference:
  • Publication Date: 2015


  • English

Media Info

  • Media Type: Digital/other
  • Features: Appendices; Figures; Photos; References; Tables;
  • Pagination: pp 136-155
  • Monograph Title: 2015 IRCOBI Conference Proceedings
  • Serial:

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Filing Info

  • Accession Number: 01577601
  • Record Type: Publication
  • Report/Paper Numbers: IRC-15-24
  • Files: TRIS
  • Created Date: Sep 30 2015 9:08AM