Pre-Position Effect on the Response and Failure of a C4-C5 Segment FE Model

The aim of the current study is to use a C4‐C5 segment finite element (FE) model to demonstrate that the response to loading, including the mode and progression of failure, is different if the stresses and strains generated during repositioning are not accounted for prior to subsequent deformation. It is hypothesized that if the initial stresses and strains in non‐neutral head postures are retained in the model prior to impact, the increased potential for injury from impact scenarios with non‐neutral postures can be assessed. The current study used an existing C4‐C5 segment FE model from the Global Human Body Model Consortium (GHBMC) 50th percentile male HBM, which had been assessed previously for different modes of loading (tension, flexion, extension). Two modes of loading (tension‐vertebral disc only, and flexion‐vertebral disc and ligaments) were simulated for three load scenarios: monotonic loading; stress‐free initial displacement; and initial displacement with retained stresses. The current study demonstrates that repositioning the model without generating and retaining the initial stresses prior to final loading to failure produces results that fall outside the reported range of motion and failure corridors of the segment. The results from this study will serve as the starting‐point for incorporation into a full neck model and assessment of the increased potential for injury in a non‐neutral head posture during vehicle collisions.

• Record URL:
  • http://www.ircobi.org/wordpress/downloads/irc16-asia/pdf-files/26.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:
  • Boakye-Yiadom, Solomon
  • Barker, Jeffrey
  • Cronin, Duane
• 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; 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: Bending stress; Biokinematics; Crash injuries; Crash victim simulation; Finite element method; Mathematical models; Tension
• Uncontrolled Terms: Head and neck injuries
• Subject Areas: Highways; Safety and Human Factors;

Filing Info

• Accession Number: 01612074
• Record Type: Publication
• Files: TRIS
• Created Date: Sep 27 2016 4:09PM