Investigation of Effect of Peaks and Durations in Head Angular Acceleration Curves on Strains in Brain

頭部回転加速度波形が脳内ひずみに及ぼす影響の調査

Effects of shapes in angular acceleration curves during head rotational impact on cumulative strain damage measure (CSDM) and strain distribution were investigated to elucidate critical factors for better brain injury prediction by using a human head finite element (FE) model. A constitutive model of brain parenchyma taking account of strain rate dependency and characteristic features in unloading process was applied to the head FE model. The results suggested that not only the peak value of loaded angular velocity or angular acceleration but also the duration of impact could be a critical factor for brain injury prediction.

• Record URL:
  https://doi.org/10.11351/jsaeronbun.47.1393
• Availability:
  • Find a library where document is available. Order URL: http://worldcat.org/issn/02878321
• Authors:
  • Atsumi, Noritoshi
  • Nakahira, Yuko
  • Iwamoto, Masami
  • Hirabayashi, Satoko
  • Tanaka, Eiichi
• Publication Date: 2016

Language

• English
• Japanese

Media Info

• Media Type: Digital/other
• Features: Figures; References; Tables;
• Pagination: pp 1393-1398
• Serial:
  • Transactions of Society of Automotive Engineers of Japan
  • Volume: 47
  • Issue Number: 6
  • Publisher: Society of Automotive Engineers of Japan
  • ISSN: 0287-8321
  • EISSN: 1883-0811
  • Serial URL: https://www.jstage.jst.go.jp/browse/jsaeronbun
• Publication flags:

  Open Access (libre)

Subject/Index Terms

• TRT Terms: Angular acceleration; Crash injuries; Dummies; Head; Safety; Traumatic brain injuries; Viscoelasticity
• Uncontrolled Terms: Strain rate
• Subject Areas: Highways; Safety and Human Factors;

Filing Info

• Accession Number: 01664678
• Record Type: Publication
• Source Agency: Japan Science and Technology Agency (JST)
• Files: TRIS, JSTAGE
• Created Date: Mar 29 2018 9:31AM