An assessment of blast modelling techniques for injury biomechanics research

Xiancheng Yu, Mazdak Ghajari

International Journal for Numerical Methods in Biomedical Engineering, 2019

Abstract

Blast-induced traumatic brain injury (TBI) has been affecting combatants and civilians. The blast pressure wave is thought to have a significant contribution to blast-related TBI. Due to the limitations and difficulties of conducting blast tests on surrogates, computational modelling has been used as a key method for exploring this field. However, the blast wave modelling methods reported in current literature have drawbacks. They either cannot generate the desirable blast pressure wave history or they are unable to accurately simulate the blast wave/structure interaction. In addition, boundary conditions, which can have significant effects on model predictions, have not been described adequately. Here, we critically assess the commonly used methods for simulating blast wave propagation in air (open-field blast) and its interaction with the human body. We investigate the predicted blast wave time history, blast wave transmission, and the effects of various boundary conditions in three-dimensional (3D) models of blast prediction. We propose a suitable meshing topology, which enables accurate prediction of blast wave propagation and interaction with the human head and significantly…

Cite as (BibTeX)

@article{yu-2019-an-assessment-of-blast,
  title={An assessment of blast modelling techniques for injury biomechanics research},
  author={Xiancheng Yu and Mazdak Ghajari},
  journal={International Journal for Numerical Methods in Biomedical Engineering},
  year={2019},
  doi={10.1002/cnm.3258}
}