In Situ Intracranial Strain Measurements within an Elastomeric Brain Surrogate
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- A Singh (Copyright Permission)
- Lee Gabler (Copyright Permission)
- Neveen Awad (Copyright Permission)
- Haojie Mao (Copyright Permission)
- Serge Dextraze (Copyright Permission)
- Simon Ouellet (Copyright Permission)
- Ann Bailey (Copyright Permission)
- Zhu Feng (Copyright Permission)
- Matthew Alley (Copyright Permission)
- Abstract
Incidence of concussion remains high despite the widespread use of helmets. While the primary cause of mild traumatic brain injury (mTBI) is thought to be intracranial strain, current helmet evaluation techniques resolve head kinematics as the primary evaluation metrics. These techniques have been highly effective in reducing focal brain injuries. However, their effectiveness in reducing the incidence or severity of concussion has been less clear. There remains a need to advance tools and methodologies capable of making a more direct link between helmet certification protocols and the causes of concussive injury. This study presents displacement and strain within a deformable head surrogate, the BIPED headform, subjected to an extensive series of impacts. Impacts were captured under high speed X-ray at 5,000 fps, and strain fields were computed using digital image correlation. Results from this study were compared to cadaveric brain tissue displacements measured under similar impact experiments.
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Copyright © 2022 the author(s). Theses may be used for non-commercial research, educational, or related academic purposes only. Such uses include personal study, research, scholarship, and teaching. Theses may only be shared by linking to Carleton University Institutional Repository and no part may be used without proper attribution to the author. No part may be used for commercial purposes directly or indirectly via a for-profit platform; no adaptation or derivative works are permitted without consent from the copyright owner.
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- 2022
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rovt-insituintracranialstrainmeasurementswithin.pdf | 2023-05-05 | Public | Download |