Restraint Design for Obese Occupants: Obese GHBMC Model Modifications [Fourth of Four Parts]

Sun, Zhaonan; Gepner, Bronek; Kerrigan, Jason R.; University of Virginia. Center for Applied Biomechanics

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Restraint Design for Obese Occupants: Obese GHBMC Model Modifications [Fourth of Four Parts]

2024-05-01
By Sun, Zhaonan ; Gepner, Bronek ; Kerrigan, Jason R.

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Creators:

Sun, Zhaonan ; Gepner, Bronek ; Kerrigan, Jason R.

Sun, Zhaonan ; Gepner, Bronek ; Kerrigan, Jason R. Less -
Corporate Creators:

University of Virginia. Center for Applied Biomechanics
Corporate Contributors:

United States. Department of Transportation. National Highway Traffic Safety Administration
Subject/TRT Terms:

[+]

Belt Test Global Human Body Models Consortium (GHBMC) Human Body Size Kinematics Obesity Obesity Model Post Mortem Surrogate Restraint Systems Seat Belts Sled Tests Smooth Particle Galerkin Submarining
Publication/ Report Number:

DOT HS 813 540d
Resource Type:

Tech Report
Geographical Coverage:

United States
Edition:

Fourth of four parts
Corporate Publisher:

United States. Department of Transportation. National Highway Traffic Safety Administration
Abstract:

Fourth of four parts. The objective of this study was to modify the Global Human Body Models Consortium obesity models to improve their response relative to the obese postmortem human surrogates in a series of tabletop belt tests. This study found that submarining could be modeled by breaking boundary condition or large shear deformation in flesh; detaching connection between the pelvis and surrounding flesh could release the boundary condition and therefore allow for submarining; pulling hard with a denser mesh in the flesh could break the boundary between flesh and pelvis, therefore leading to submarining; large shear deformation can be realized through using SPG particle-to-particle bond failure criteria; tuned smooth particle Galerkin parameters worked well in the belt pull test simulation, recreating similar kinematics in the GHBMC obesity model to the PMHS; and the same set of tuned SPG parameter did not enable the GHBMC obesity model submarining in the rear seat sled test simulation.
Format:

PDF
Funding:

DTNH2215D00022
Collection(s):

NHTSA - Vehicle Safety Research
Main Document Checksum:

[+]

urn:sha256:8221a2d80c9b2d6a5167b55b9b7950242a3f915ce3065c17155d4c145ec22552
Download URL:

https://rosap.ntl.bts.gov/view/dot/74433/dot_74433_DS1.pdf
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Restraint Design for Obese Occupants: Obese GHBMC Model Modifications [Fourth of Four Parts]

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