Research Papers

Finite Element Aortic Injury Reconstruction of Near Side Lateral Impacts Using Real World Crash Data

[+] Author and Article Information
Aditya Belwadi1

Wayne State University, Detroit, Michigan 48201adityabn@gmail.com

John H. Siegel1

 New Jersey Medical School: UMDNJ, Newark, New Jersey 07101Jhsiegelmd@aol.com

Aadarsh Singh1

Wayne State University, Detroit, Michigan 48201aadarshdeep@gmail.com

Joyce A. Smith

New Jersey Medical School: UMDNJ, Newark, New Jersey 07101;School of Nursing, University of Rochester Medical Center,Rochester, NY 14627JoyceA_Smith@urmc.rochester.edu

King H. Yang1

Wayne State University,Detroit, Michigan 48201king.yang@wayne.edu

Albert I. King1

Wayne State University,Detroit, Michigan 48201albert.king@wayne.edu


Corresponding author.

J Biomech Eng 134(1), 011006 (Feb 09, 2012) (10 pages) doi:10.1115/1.4005684 History: Received March 05, 2011; Revised December 18, 2011; Posted January 24, 2012; Published February 08, 2012; Online February 09, 2012

Traumatic rupture of the aorta (TRA) remains the second most common cause of death associated with motor vehicle crashes, only less prevalent than brain injury. On average, nearly 8000 people die annually in the United States due to blunt injury to the aorta. It is observed that over 80% of occupants who suffer an aortic injury die at the scene due to exsanguination into the chest cavity. In the current study, eight near side lateral impacts, in which TRA occurred, were reconstructed using a combination of real world crash data reported in the Crash Injury Research and Engineering Network (CIREN) database, finite element (FE) models of vehicles, and the Wayne State Human Body Model - II (WSHBM). For the eight CIREN cases reconstructed, the high strain regions in the aorta closely matched with the autopsy data provided. The peak average maximum principal strains in all of the eight CIREN cases were localized in the isthmus region of the aorta, distal to the left subclavian artery, and averaged at 22 ± 6.2% while the average maximum pressure in the aorta was found to be 117 ± 14.7 kPa.

Copyright © 2012 by American Society of Mechanical Engineers
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Figure 1

(a) The Wayne State Human Body Model – II (WSHBM), Shah [15], (b) WSHBM upper torso, and (c) sagittal section of the thorax with the shoulder, ribcage, and the left lung removed to view the mediastinum contents

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Figure 2

Attachment of the superior vasculature in the WSHBM

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Figure 3

Deformation patterns (C1 to C6) as provided by CIREN [as per SAE J2433 [26]

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Figure 4

Left lateral thoracic aortic injuries by source (1993-2008)

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Figure 5

(a) Average maximum principal strain location: isthmus of the aorta, and (b) Left side door intrusion pattern

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Figure 6

Plot of average percentage difference between measurement points (“C Point”) for each CIREN case reconstructed

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Figure 7

Average maximum principal strain-time histories for the right CIREN cases reconstructed



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