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Role of Skull Fracture on Load Transfer to Brain

[+] Author Affiliations
Timothy G. Zhang

TKC Global Inc, Aberdeen Proving Ground, MD

Kimberly A. Thompson, Sikhanda S. Satapathy

US Army Research Laboratory, Aberdeen Proving Ground, MD

Paper No. IMECE2016-68185, pp. V003T04A048; 9 pages
doi:10.1115/IMECE2016-68185
From:
  • ASME 2016 International Mechanical Engineering Congress and Exposition
  • Volume 3: Biomedical and Biotechnology Engineering
  • Phoenix, Arizona, USA, November 11–17, 2016
  • Conference Sponsors: ASME
  • ISBN: 978-0-7918-5053-4
  • Copyright © 2016 by ASME

abstract

This study focuses on the effect of skull fracture on the load transfer to brain for low velocity frontal impact of head against a rigid wall. The skull was modeled as a cortical-trabecular-cortical layered structure in order to better capture the skull deformation and consequent failure. The skull components were modeled with an elastoplastic with failure material model. Different methods were explored to model the material response after failure, such as eroding element technique, conversion to fluid, and conversion to SPH particles. The transmitted pressure in the brain was observed to increase with skull fracture.

Copyright © 2016 by ASME

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