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Effect of Long-Duration Impact on Head
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English
Abstract
Impacts have been analyzed in terms of degree of injury, head injury criterion (HIC), and average acceleration as a function of time for frontal impacts against the following surfaces:
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1.
Rigid flat surface-fractured cadaver skull.
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2.
Astroturf-head drop of football-helmeted cadaver.
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3.
Windshield penetrating impact of a dummy.
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4.
Airbag-dynamic test by human volunteers.
It is concluded that the linear acceleration/time concussion tolerance curve may not exist and that only impacts against relatively stiff surfaces producing impulses with short rise times can be critical. The authors hypothesize that if a head impact does not contain a critical HIC interval of less than 0.015 s, it should be considered safe as far as cerebral concussion is concerned.
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Citation
Hodgson, V. and Thomas, L., "Effect of Long-Duration Impact on Head," SAE Technical Paper 720956, 1972, https://doi.org/10.4271/720956.Also In
References
- Hodgson V. R. Thomas L. M. “Comparison of Head Acceleration Injury Indices in Cadaver Skull Fracture.” SAE Transactions 80 1971 paper 710854
- Hodgson V. R. Thomas L. M. Prasad P. “Testing the Validity and Limitations of the Severity Index.” Paper 700901 Proceedings of Fourteenth Stapp Car Crash Conference 33 New York Society of Automotive Engineers, Inc. 1970
- “A Progress Report on the Twenty-Sixth Annual Study of High School Football Fatalities, 1946-1971.” National Federation of State High School Associations
- Smith G. R. Hurite S. S. Yanik A. J. Greer C. R. “Human Volunteer Testing of GM Air Cushions.” Paper 720443 2nd International Conference on Passive Restraints Detroit May 1972
- Department of Transportation National Highway Traffic Safety Admin. “Occupant Crash Protection Head Injury Criterion.”
- Herman Ronald I. et al. “A Study of Occupant Injury and Glass Damage Associated with the High Penetration Resistant Windshield.” Paper PB 197 569 Cornell Aeronautical Laboratory, Inc. Buffalo, New York 1970