Development of a Finite Element-Based Injury Metric for Pulmonary Contusion - Part I: Model Development and Validation

The most commonly identified thoracic soft tissue injury in an automobile crash after blunt chest trauma is pulmonary contusion and its mortality is estimated to be 10-25%. This research addressed the need to develop a finite element model based injury metric for pulmonary contusion for the purpose of predicting outcome. The study utilized impacts onto rats. The rats' lungs were scanned at 1 day, 7 days and 28 days after impact and the contused volume was measured. Identical impacts were performed on a finite element model of the rat lung. First principal strain was chosen as a candidate injury metric for pulmonary contusion. The results of this study may be used to establish an injury metric to predict pulmonary contusion due to an impact to the lungs. The results may be used to improve finite element models of the human body, which may then be used to tune stiffnesses of interior components of automobiles and tune safety systems for maximum mitigation of this serious injury.

• Availability:
  • Find a library where document is available. Order URL: http://worldcat.org/oclc/65562865
• Authors:
  • Stitzel, Joel D
  • Gayzik, F Scott
  • Hoth, J Jason
  • Mercier, Jennifer
  • Gage, H Donald
  • Morton, Kathryn A
  • Duma, Stefan M
  • Payne, R Mark
• Publication Date: 2005

Language

• English

Media Info

• Media Type: Print
• Features: Figures; References; Tables;
• Pagination: pp 271-289
• Serial:
  • Stapp Car Crash Journal
  • Volume: 49
  • Publisher: Society of Automotive Engineers (SAE)
  • ISSN: 1532-8546
  • Serial URL: http://www.stapp.org/pubs.shtml

Subject/Index Terms

• TRT Terms: Crash injury research; Crash tests; Finite element method; Lungs; Mathematical models; Rats; Strain measurement
• Uncontrolled Terms: Pulmonary contusion; Soft tissue injuries
• Subject Areas: Highways; Research; Safety and Human Factors; I84: Personal Injuries;

Filing Info

• Accession Number: 01030037
• Record Type: Publication
• ISBN: 0768017106
• Files: TRIS
• Created Date: Aug 2 2006 1:40PM