Vol.17, No.1, 2020, pp.49-62, doi:10.32604/mcb.2019.07534
OPEN ACCESS
ARTICLE
A Study on the Finite Element Model for Head Injury in Facial Collision Accident
  • Bin Yang1,2,3,*, Hao Sun1, Aiyuan Wang1, Qun Wang2
1 School of Automobile & Rail Transit, Nanjing Institute of Technology, Nanjing, 211167, China
2 College of Automobile and Traffic Engineering, Nanjing Forestry University, Nanjing, 210037, China
3 Department of Mechanical Engineering, National University of Singapore, Singapore, 117576, Singapore
* Corresponding Author: Bin Yang. Email: yangb123@126.com
Abstract
In order to predict and evaluate injury mechanism and biomechanical response of the facial impact on head injury in a crash accident. With the combined modern medical imaging technologies, namely computed tomography (CT) and magnetic resonance imaging (MRI), both geometric and finite element (FE) models for human head-neck with detailed cranio-facial structure were developed. The cadaveric head impact tests were conducted to validate the headneck finite element model. The intracranial pressure, skull dynamic response and skull-brain relative displacement of the whole head-neck model were compared with experimental data. Nine typical cases of facial traffic accidents were simulated, with the individual stress wave propagation paths to the intracranial contents through the facial and cranial skeleton being discussed thoroughly. Intracranial pressure, von Mises stress and shear stress distribution were achieved. It is proved that facial structure dissipates a large amount of impact energy to protect the brain in its most natural way. The propagation path and distribution of stress wave in the skull and brain determine the mechanism of brain impact injury, which provides a theoretic basis for the diagnosis, treatment and protection of craniocerebral injury caused by facial impact.
Keywords
Facial impact; traumatic brain injury; finite element model; injury biomechanics
Cite This Article
Yang, B., Sun, H., Wang, A., Wang, Q. (2020). A Study on the Finite Element Model for Head Injury in Facial Collision Accident. Molecular & Cellular Biomechanics, 17(1), 49–62.
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