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Simulation of Mouse Brain Tissue Under Controlled Cortical Impact

[+] Author Affiliations
Haifeng Zhao, Ke Wang

Chinese Academy of Sciences, Beijing, China

Changxin Lai, Suhao Qiu, Yuan Feng

Shanghai Jiao Tong University, Shanghai, China

Tianyao Wang, Jun Liu

Fudan University, Shanghai, China

Wenheng Jiang, Xiangdong Li, Jianfeng Zeng

Soochow University, Suzhou, China

Paper No. IMECE2018-88790, pp. V009T12A044; 4 pages
doi:10.1115/IMECE2018-88790
From:
  • ASME 2018 International Mechanical Engineering Congress and Exposition
  • Volume 9: Mechanics of Solids, Structures, and Fluids
  • Pittsburgh, Pennsylvania, USA, November 9–15, 2018
  • Conference Sponsors: ASME
  • ISBN: 978-0-7918-5214-9
  • Copyright © 2018 by ASME

abstract

Traumatic brain injury is one of the leading causes of injury and death in both developed and developing countries. Animal models are important preclinical tools for injury level studies. In this study, a finite element (FE) model of mouse brain was constructed to investigate the biomechanical responses of brain tissue during a controlled cortical impact (CCI). Impact of the brain tissue was simulated with varying impact speeds and angles. Computational results indicated that the viscoelastic properties of the brain tissue and the impact angle could greatly influence the injury responses. Comparison with the experimental observation showed that energy based stress parameters such as the von Mises stress has the potential to be descriptive of the injury levels.

Copyright © 2018 by ASME

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