Infant Eye Finite‐Element Model for Injury Analysis

Retinal hemorrhages appear both in case of traffic accidents, fall cases and in case of child abuse. Their mechanisms are poorly investigated. Existing eye finite‐element models are used for very specific purposes and there is a lack of detailed modelling. The aim of this study was to develop a complete infant eye finite‐element model to investigate eye injuries after falls. The finite‐element model of the eye and surrounding components were generated from dimensions available in the literature and from infant MRI data. A set of five occipital impact experiments on a six weeks old baby dummy was performed on different surfaces and heights. The recorded accelerations were used as inputs for the eye finite‐element model to replicate occipital, lateral and frontal impacts. Results from experiments showed that the maximum linear acceleration ranged from 110‐687 g (HIC15 values from 150 to 6000). From the simulations, five parameters (Pressure, Von‐Mises stress/strain, Principal stress/strain) were computed for all eye components and compared. Focus was put on the retina and results demonstrated that parameter values increase along acceleration and HIC15 values. Moreover in frontal impacts, intra‐ocular parameters are higher than in occipital or temporal ones. More documented infant falls will help to establish an injury threshold for retinal hemorrhages to be applied in automotive crash environment.

• Record URL:
  http://www.ircobi.org/wordpress/downloads/irc16/pdf-files/42.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:
  • Nadarasa, J
  • Deck, C
  • Meyer, F
  • Bourdet, N
  • Raul, J
  • Willinger, R
• Conference:
  • 2016 IRCOBI Conference
  • Location: Malaga , Spain
  • Date: 2016-9-14 to 2016-9-16
• Publication Date: 2016

Language

• English

Media Info

• Media Type: Web
• Features: Figures; Photos; References; Tables;
• Pagination: 11p
• Monograph Title: 2016 IRCOBI 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: Crash injuries; Crash victim simulation; Dummies; Eye; Finite element method; Frontal crashes; Infants; Mathematical models; Occupant dynamics; Occupant kinetics
• Subject Areas: Highways; Safety and Human Factors;

Filing Info

• Accession Number: 01614027
• Record Type: Publication
• Files: TRIS
• Created Date: Oct 25 2016 9:47AM