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An Assessment of Primary Blast Injury in Human Brains: A Numerical Simulation

[+] Author Affiliations
Mahdi Sotudehchafi, Ghodrat Karami, Mariusz Ziejewski

North Dakota State University, Fargo, ND

Paper No. SBC2007-176155, pp. 349-350; 2 pages
doi:10.1115/SBC2007-176155
From:
  • ASME 2007 Summer Bioengineering Conference
  • ASME 2007 Summer Bioengineering Conference
  • Keystone, Colorado, USA, June 20–24, 2007
  • Conference Sponsors: Bioengineering Division
  • ISBN: 0-7918-4798-5

abstract

Most blast-related injuries happen as a result of complex pressure waves generated by the explosion. In this paper, we model the explosion from detonation and examine the blast propagation in air using Arbitrary Lagrangian–Eulerian (ALE) finite element formulation. The results of the simulation agree well with those of physical data obtained from blast wave experiments. Such results set the circumstances necessary for an examination of brain injury exposed to such situations. Thus the model will be coupled with a Fluid/Structure Interaction (FSI) algorithm to implicitly examine the blast wave interactions with a human head and to study the creation of high regions of biomechanics pressure and stress gradients.

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