Development and validation of a head/brain FE model and investigation of influential factor on the brain response during head impact

Higher brain dysfunction due to traumatic brain injury (TBI) caused by head rotational impact in traffic accidents is one of the most serious automotive safety problems. However, the injury mechanism still remains unclear. In this study, the authors developed two human head finite element (FE) models based on THUMS for further understanding of TBI mechanism. Parametric studies were performed to investigate the factors affecting brain tissue displacements and intracranial pressures during head impact by using these models. The mesh fineness, material properties of cerebrospinal fluid (CSF) and contact conditions between brain parenchyma and surrounding external organisation had little influence on validation accuracy against test data on brain responses of post mortem human subjects (PMHS). However, there were significant differences in the values of cumulative strain damage measure (CSDM) and the contours of strain distribution between these models. These findings have the potential for better understanding of TBI mechanism.

• Record URL:
  • https://doi.org/10.1504/IJVS.2016.077145
• Availability:
  • Find a library where document is available. Order URL: http://worldcat.org/issn/14793105
• Supplemental Notes:
  • Copyright © 2016 Inderscience Enterprises Ltd.
• Authors:
  • Atsumi, Noritoshi
  • Nakahira, Yuko
  • Iwamoto, Masami
• Publication Date: 2016

Language

• English

Media Info

• Media Type: Web
• Pagination: pp 1-23
• Serial:
  • International Journal of Vehicle Safety
  • Volume: 9
  • Issue Number: 1
  • Publisher: Inderscience Enterprises Limited
  • ISSN: 1479-3105
  • EISSN: 1479-3113
  • Serial URL: http://www.inderscience.com/jhome.php?jcode=ijvs

Subject/Index Terms

• TRT Terms: Head; Highway safety; Impact; Traffic crashes; Traumatic brain injuries
• Subject Areas: Highways; Safety and Human Factors;

Filing Info

• Accession Number: 01605472
• Record Type: Publication
• Files: TRIS
• Created Date: Jul 27 2016 9:51AM