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Application of Human Body Models to Real-World Crash Reconstructions and Best Practices for Human Body Model Postural Adjustment

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abstract
In recent years, finite element (FE) human body models (HBMs) have been increasingly used in motor vehicle crash (MVC) biomechanics research and validation of HBMs using post-mortem human subject (PMHS) laboratory testing has resulted in continual improvement to HBM biofidelity and applicability. However, less work has focused on utilizing and validating HBMs in real-world motor vehicle crashes, which rarely match the conditions of standardized laboratory crash tests and sled tests due to the wide variability in crash and occupant characteristics. FE reconstructions of MVCs are effective tools for validating HBMs and investigating occupant kinematics and injury causation in realistic settings (Shigeta et al. 2009), but they are currently limited in their ability to efficiently reconstruct real-world MVCs. Additionally, there is a lack of standardization regarding the use of HBMs in MVC research. This study aimed to develop a standardized, time-efficient methodology for reconstructing a wide range of real-world motor vehicle crashes and determine best practices for HBM postural adjustment. This research is comprised of three parts. The first part developed and tested a time-efficient methodology for reconstructing a wide range MVCs using a simplified vehicle model and a simplified 50th percentile male FE HBM in 11 frontal crashes from the Crash Injury Research and Engineering Network. The second part tuned and validated an updated simplified vehicle model for use in reconstructing vehicle-to-vehicle near-side crashes by reconstructing 5 moving deformable barrier near-side crash tests using the methodology from the first part. The final part developed and documented best practices for postural adjustment of HBMs by adjusting a detailed 50th percentile male HBM and quantifying the effects of postural adjustment time and mass scaling on resulting model quality.
subject
Computational
Finite Element
GHBMC
Injury
THUMS
contributor
Costa, Casey (author)
Weaver, Ashley A. (committee chair)
Gayzik, F. Scott (committee member)
Martin, R. Shayn (committee member)
Miller, Anna N. (committee member)
date
2021-06-03T08:36:17Z (accessioned)
2021 (issued)
degree
Biomedical Engineering (discipline)
2026-05-17 (liftdate)
embargo
2026-05-17 (terms)
identifier
http://hdl.handle.net/10339/98832 (uri)
language
en (iso)
publisher
Wake Forest University
title
Application of Human Body Models to Real-World Crash Reconstructions and Best Practices for Human Body Model Postural Adjustment
type
Dissertation

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