Experimental and computational analysis of brain deformations in linear head impact

Kurosh Darvish, Mehdi Shafieian, Kaveh Laksari, Banafsheh Barabadi, Cristina Parenti

Research output: Chapter in Book/Report/Conference proceedingConference contribution

1 Scopus citations

Abstract

In this study two-dimensional physical and finite element models of human head under linear deceleration were developed. 5% gelatin was used as the brain substitute material with similar viscoelastic properties. The experimental strains and pressure during 55G impacts were measured to validate the element formulations used in the computational models. The Lagrangian and Arbitrary Lagrangian Eulerian (ALE) formulations were used in the FE models. It was shown that without Cerebrospinal Fluid (CSF), the Lagrangian strains passed the 10% threshold of axonal injury. At the presence of CSF, no significant strain was observed while 6 to 8 times increase in the intracranial pressure was recorded. The FE models showed similar trends for strain, stress, and pressure but were generally more aggressive than the experimental results. The ALE model was more stable and its effective damping was more consistent with the experimental data.

Original languageEnglish (US)
Title of host publication2008 Proceedings of ASME International Mechanical Engineering Congress and Exposition, IMECE 2008
Pages117-124
Number of pages8
DOIs
StatePublished - Sep 18 2009
Externally publishedYes
Event2008 ASME International Mechanical Engineering Congress and Exposition, IMECE 2008 - Boston, MA, United States
Duration: Oct 31 2008Nov 6 2008

Publication series

NameASME International Mechanical Engineering Congress and Exposition, Proceedings
Volume17

Other

Other2008 ASME International Mechanical Engineering Congress and Exposition, IMECE 2008
CountryUnited States
CityBoston, MA
Period10/31/0811/6/08

ASJC Scopus subject areas

  • Mechanical Engineering

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    Darvish, K., Shafieian, M., Laksari, K., Barabadi, B., & Parenti, C. (2009). Experimental and computational analysis of brain deformations in linear head impact. In 2008 Proceedings of ASME International Mechanical Engineering Congress and Exposition, IMECE 2008 (pp. 117-124). (ASME International Mechanical Engineering Congress and Exposition, Proceedings; Vol. 17). https://doi.org/10.1115/IMECE2008-69296