Full-face motorcycle helmet protection from facial impacts: an investigation using THOR dummy impacts and SIMon finite element head model

In spite of the fact that there is no facial impact requirement in major motorcycle helmet standards, facial impacts occur frequently and with injurious effect for motorcyclists who crash while wearing helmets. Using a test device with biofidelic head and neck motion, the effect of full-face motorcycle helmet protection on brain injury risk in facial impacts is examined in this study. Energy absorbing foam in the helmet chin bar was carried out in a preliminary investigation. Using a THOR dummy in an unprotected (no helmet) and protected mode (two full-face helmets), flat-faced rigid pendulum impacts were performed. In order to analyze the risk of brain injury in these impacts, the head responses of the dummy were input into the simulated injury monitor finite element head model. The results show that a significant reduction in brain injury risk in facial impacts at increasing impact speeds compared with an unprotected rider (p<0.05) is provided by full-face helmet protection. When low-density crushable foam was added to the chin bat, the effects could not be distinguished from an unpadded chin bar impact. Full-face helmets do provide a reduction in head injury risk to the motorcyclist in facial impacts, despite the lack of an impact attenuation requirement for the face. If improved protection for motorcyclists wearing helmets is be achieved, then the specific helmet design factors influencing injury risk in facial impacts need to be further investigated.

Language

  • English

Media Info

  • Media Type: Digital/other
  • Features: Figures; Photos; References; Tables;
  • Pagination: pp 205-210
  • Serial:

Subject/Index Terms

Filing Info

  • Accession Number: 01669386
  • Record Type: Publication
  • Files: TRIS
  • Created Date: Apr 6 2018 3:19PM