Nonlinear Viscoelastic Model for Head Impact Injury Hazard 720963
This study explores the application of viscoelastic modeling for characterization of the response of the brain to impulsive loading with the objective of learning whether such models could exhibit the same time dependency of strain or likelihood of injury, as exhibited by the Severity Index, HIC Index, Wayne Tolerance Curve, and other similar representations of tolerance.
The mathematical relationships between viscoelastic properties and the corresponding time dependency of tolerance are shown for Newtonian, Bingham plastic, and Pseudo-Bingham, as well as more general behavior.
Preliminary static and dynamic tests upon small mammalian material are described with particular attention given to strain in the vicinity of the brainstem as a function of loading profile.
Both the theoretical and experimental results show that the falling time dependency of the above indexes can be interpreted in terms of nonlinear viscoelastic response.
Citation: Haut, R., Gadd, C., and Madeira, R., "Nonlinear Viscoelastic Model for Head Impact Injury Hazard," SAE Technical Paper 720963, 1972, https://doi.org/10.4271/720963. Download Citation
Author(s):
Roger C. Haut, Charles W. Gadd, Richard G. Madeira
Affiliated:
Research Laboratories, General Motors Corp.
Pages: 7
Event:
16th Stapp Car Crash Conference (1972)
ISSN:
0148-7191
e-ISSN:
2688-3627
Also in:
SAE 1972 Transactions-V81-A, Biomechanics of Impact Injury and Injury Tolerances of the Head-Neck Complex-PT-43
Related Topics:
Simulation and modeling
Nervous system
Education and training
Plastics
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