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Annals of Military and Health Sciences Research
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Biomechanical analysis of blast-induced traumatic brain injury
Author(s):
1Department of Surgery, AJA University of Medical Sciences, Tehran, Iran, Andorra
2Department of Physics, University of Tehran, Tehran, Iran., Andorra
3Postdoctoral Researcher, Department of Biomedical Engineering, Amirkabir University of Technology, Tehran, Iran., Andorra
*Corresponding Author: Corresponding author: kambiz kangarloo, Postdoctoral Researcher, Department of Biomedical Engineering, Amirkabir University of Technology, Tehran, Iran., Andorra Email: [email protected]
Published online:Feb 20, 2014
Article type:Research Article
Received:Aug 14, 2013
Accepted:Jan 16, 2014
How to Cite:Lashkari MH, Koohian A, kangarloo K. Biomechanical analysis of blast-induced traumatic brain injury. Ann Mil Health Sci Res. 2014;12(2):e63365. doi:
Abstract
Materials and Methods: To investigate the mechanical response of human brain to blast waves and to identify the injury mechanisms of TBI, a three-dimensional finite elementhead model consisting of the scalp, skull, cerebrospinal fluid (CSF) and brain was developed from the imaging data of a human head.The mechanical properties of brain tissue were obtained from the literature.
Results: Throughout the loading regime, CSF acted as a protective layer for brain tissue by absorbing shear strain energy. Biomechanical loading of the brain was governed by direct wave transmission, structural deformations, and wave reflections from tissue-material interfaces.
Conclusion: The brain experiences a complex set of direct and indirect loadings emanating from different sources (reflections from tissue interfaces and skull deformation) at different points of time. The flow dynamics strongly depend on geometry (shape, curvature) and structure (flexural rigidity, thickness) of a specimen and should be considered in understanding biomechanical loading pattern.
References
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Copyright
© 2014, Annals of Military and Health Sciences Research. This open-access article is available under the Creative Commons Attribution-NonCommercial 4.0 (CC BY-NC 4.0) International License (https://creativecommons.org/licenses/by-nc/4.0/), which allows for the copying and redistribution of the material only for noncommercial purposes, provided that the original work is properly cited.
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