In Situ Intracranial Strain Measurements within an Elastomeric Brain Surrogate

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Rovt, Jennifer Sarah




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.


Engineering - Mechanical
Engineering - Biomedical
Materials Science




Carleton University


Copyright Permission: 
Lee Gabler
Copyright Permission: 
Ann Bailey
Copyright Permission: 
Zhu Feng
Copyright Permission: 
Matthew Alley
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Simon Ouellet
Copyright Permission: 
Neveen Awad
Copyright Permission: 
A Singh
Copyright Permission: 
Haojie Mao
Copyright Permission: 
Serge Dextraze

Thesis Degree Name: 

Master of Applied Science: 

Thesis Degree Level: 


Thesis Degree Discipline: 

Engineering, Mechanical

Parent Collection: 

Theses and Dissertations

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