A comparison between a child-size PMHS and the Hybrid III 6 YO in a sled frontal impact

Francisco J. Lopez-Valdes, Jason Forman, Richard Kent, Ola Bostrom, Maria Segui-Gomez

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

As pediatric PMHS data are extremely limited, evidence of kinematic differences between pediatric ATDs and live humans comes from comparison of laboratory data to field crash data. Despite the existence of regulations intended to prevent head injuries, these remain the most common serious injuries sustained by children in crashes. In this study, nine frontal sled tests using a Hybrid III 6YO and three tests performed with a child-size adult PMHS were compared, with focus on the kinematic responses (especially of the head) and the seatbelt forces generated during the impact. Two different restraint systems (a pretensioning, force-limiting seatbelt, and a non pretensioning force-limiting standard belt) and two different impact speeds (29 km/h and 48 km/h) were compared. Data from the PMHS were scaled using the erect sitting height of a 50 th percentile 6YO and both scaled and unsealed data are presented. The ATD predicted correctly the peak values of the scaled displacements of the PMHS, but differences in relevant parameters such as torso angle and resultant acceleration at different locations were found between the dummy and the PMHS. The ATD's stiffer thoracic spine is hypothesized as a major cause of these differences.

Original languageEnglish (US)
Title of host publicationAnnals of Advances in Automotive Medicine - 53rd Annual Scientific Conference
Pages237-246
Number of pages10
StatePublished - 2009
Externally publishedYes
EventAnnals of Advances in Automotive Medicine - 53rd Annual Scientific Conference - Baltimore, MD, United States
Duration: Oct 5 2009Oct 7 2009

Other

OtherAnnals of Advances in Automotive Medicine - 53rd Annual Scientific Conference
CountryUnited States
CityBaltimore, MD
Period10/5/0910/7/09

ASJC Scopus subject areas

  • Biomedical Engineering
  • Safety, Risk, Reliability and Quality

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  • Cite this

    Lopez-Valdes, F. J., Forman, J., Kent, R., Bostrom, O., & Segui-Gomez, M. (2009). A comparison between a child-size PMHS and the Hybrid III 6 YO in a sled frontal impact. In Annals of Advances in Automotive Medicine - 53rd Annual Scientific Conference (pp. 237-246)