In Vivo Responses of Human Subjects under Low-velocity Collision Loadings

The rules and regulations for automotive safety have been developed based on the ATD (anthropometric test dummy) rather than on a real human for many practical reasons. For durability and accessibility, the ATD is designed to be a simplified version of a human body. However, due to lack of biofidelity and diversity in anthropometry of the ATDs, the developed safety system may provide limited coverage to field accident cases. Especially in the low‐velocity impact situation, volunteer subjects tense their muscles to hold out against external forces and avoid impending collision. This article reports on a study of in vivo responses of human volunteers to different braking patterns during low‐velocity front‐end crash situations; responses were collected and analyzed through biomechanical tools. The sled acceleration data show that the transmitted impact forces from the pendulum to the sled were larger for the case with braking than without it. Since there was no seatbelt in the sled to hold back the subject body, subjects would have experienced the impact forces more drastically than in a normal vehicle with a seatbelt. Greater pedal reaction forces resulted in higher stiffness in the braking case, which may in turn result in more controlled body kinematics but may also increase joint loadings, with bony fracture and disruption of soft tissues for a given amount of impact loadings. Temporary release of braking at the moment of impact may resolve the soft tissue injuries from high muscle tensing for low velocity impact.

• Record URL:
  http://www.ircobi.org/wordpress/downloads/irc16-asia/pdf-files/49.pdf
• 
• Availability:
  • Find a library where document is available. Order URL: http://worldcat.org/issn/22353151
• 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:
  • Kim, Sungrae
  • Lee, Inju
  • Lee, Dongjin
  • Cho, Young Kuen
  • Kim, Hyung joo
  • Song, Leeyong
  • Lim, Dohyung
• Conference:
  • 2016 IRCOBI Asia Conference
  • Location: Seoul , Korea, South
  • Date: 2016-5-16 to 2015-5-18
• Publication Date: 2016

Language

• English

Media Info

• Media Type: Web
• Features: Figures; Photos; References;
• Pagination: 2p
• Monograph Title: 2016 IRCOBI Asia Conference Proceedings
• Serial:
  • IRCOBI Conference Proceedings
  • Publisher: International Research Council on Biomechanics of Injury (IRCOBI)
  • ISSN: 2235-3151
  • Serial URL: http://www.ircobi.org/proceedings.php

Subject/Index Terms

• TRT Terms: Anatomical joints; Biokinematics; Biophysics; Braking; Crash victim simulation; Dummies; Frontal crashes; Muscles; Set forward force; Vehicle safety
• Subject Areas: Highways; Safety and Human Factors;

Filing Info

• Accession Number: 01612065
• Record Type: Publication
• Files: TRIS
• Created Date: Sep 27 2016 4:09PM