Further Validation of Age-Dependent FE Models of a Mid-Sized Male Thorax

Paper #:
  • 2012-01-0582

Published:
  • 2012-04-16
Citation:
El-jawahri, R., Laituri, T., and Kim, A., "Further Validation of Age-Dependent FE Models of a Mid-Sized Male Thorax," SAE Int. J. Passeng. Cars - Mech. Syst. 5(1):552-566, 2012, https://doi.org/10.4271/2012-01-0582.
Pages:
15
Abstract:
The objective of this study was to further validate three previously-developed, age-dependent finite element models representing 35, 55, and 75 year old mid-sized males. The validation was based on comparisons with the following published tests involving post mortem human subjects: oblique thoracic and abdominal pendulum impact (4-10 m/s), oblique and lateral thoracic pendulum impact (2.5 m/s), and lateral thoracic pendulum impact (4.3 and 6.7 m/s). The responses of the models were compared to cadaveric response corridors and responses from specific cadavers similar in size and age. When compared to the cadaveric response corridors, the model responses were generally within those corridors. When compared to the responses of specific cadavers, the results were mixed. In some of the cases the model responses predicted the age-dependency of the cadaveric responses. In other cases, the model responses had the opposite trend of those of the cadavers. The comparisons of the model-predicted impact force, normalized chest compression, and viscous criterion to those of the cadavers were deemed acceptable. The model-predicted peak rib stress and strain for the different simulations were also reported and were compared to the injury outcome of the tests.
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