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Related Experiment Video

Updated: May 18, 2026

Low-intensity Blast Wave Model for Preclinical Assessment of Closed-head Mild Traumatic Brain Injury in Rodents
06:09

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Published on: November 6, 2020

Human head-neck computational model for assessing blast injury.

J C Roberts1, T P Harrigan, E E Ward

  • 1Johns Hopkins University, Applied Physics Laboratory, 10020 Johns Hopkins Road, Laurel, MD 20723, USA. jack.roberts@jhuapl.edu

Journal of Biomechanics
|September 27, 2012
PubMed
Summary

A validated human head finite element model (HHFEM) accurately predicted brain-skull displacements and intracranial pressures observed in physical head surrogate tests, advancing blast injury research.

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Area of Science:

  • Biomechanics
  • Computational modeling
  • Traumatic brain injury research

Background:

  • Blast waves pose significant risks to the human head.
  • Accurate simulation of head injury requires understanding kinetic and kinematic effects.
  • Existing models need validation against physical experiments.

Purpose of the Study:

  • To develop and validate a human head finite element model (HHFEM) for blast wave impact analysis.
  • To compare the HHFEM's predictions with a physical human head surrogate model (HSHM).
  • To assess the model's ability to predict intracranial pressures and brain-skull displacements.

Main Methods:

  • Developed a HHFEM and coupled it with a Hybrid III ATD neck model.
  • Created a physical HSHM from HHFEM data and subjected it to shock tube overpressures.
  • Utilized computational fluid dynamics (CFD) to simulate blast loading on the HHFEM.
  • Validated HHFEM results against HSHM sensor data for pressures, displacements, and rotations.

Main Results:

  • HHFEM predictions for peak intracranial pressures (70-120 kPa) favorably compared with HSHM.
  • Peak relative brain-skull displacements (0.5-3.0mm) from HHFEM aligned well with HSHM.
  • HHFEM accurately predicted brain rotations in the sagittal plane as measured by HSHM sensors.

Conclusions:

  • The validated HHFEM provides a reliable tool for studying blast wave effects on the human head.
  • The model demonstrates strong capability in predicting key biomechanical responses to blast loading.
  • This research contributes to improved understanding and mitigation of head injuries from explosions.