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Investigation of the Kinematics and Kinetics of Whiplash
ISSN: 0148-7191, e-ISSN: 2688-3627
Published February 01, 1967 by SAE International in United States
Annotation ability available
The kinematics of rear-end collisions based on published acceleration pulses of actual car-to-car collisions (10 and 23 mph) were reproduced on a crash simulator using anthropomorphic dummies, human cadavers, and a volunteer. Comparison of the responses of subjects without head support were based on the reactions developed at the base of the skull (occipital condyles). The cadavers gave responses which were representative of persons unaware of an impending collision. The responses of both dummies used were not comparable with those of the cadavers or volunteer, or to each other.
An index based on voluntary human tolerance limits to statically applied head loads was developed and used to determine the severity of the simulations for the unsupported head cases. Results indicated that head torque rather than neck shear or axial forces is the major factor in producing neck injury.
When the head was initially supported by a flat, padded headrest, all subjects gave comparable headrest loads. Using this configuration, the volunteer withstood an equivalent 44 mph simulation with only slight discomfort.
With the head separated from the headrest by 2-3/4 in. the head load increased from 150 to 390 lb, but with additional padding, the load was increased to only 250 lb.
Controlled seat back rotation decreased the magnitudes of the head loads and neck reactions for the supported and unsupported head cases, respectively.
|Technical Paper||Strength and Response of the Human Neck
|Technical Paper||Hybrid III Geometrical and Inertial Properties|
|Technical Paper||Further Validation of EDCRASH Using the RICSAC Staged Collisions|
CitationMertz, H. and Patrick, L., "
- Severy D. M. Mathewson J. H. “Automobile Barrier and Rear-End Collision Performance.” Paper 62C SAE Summer Meeting Atlantic City June 1958
- Stapp J. P. “Medical Aspects of Safety Seat Belt Development.” Proceedings of Sixth Stapp Car Crash and Field Demonstrations Conference 1963
- Carroll D. F. Collins J. A. Haley J. L. Jr. Turnbow J. W. “Crashworthiness Study for Passenger Seat Design -- Analysis and Testing of Aircraft Seats.” AvSER 67-4 May 1967
- Simmons Carroll F. Herting David N. “Strength of the Human Neck.” Life Sciences Department, Space and Information Systems Division North American Aviation, Inc. SID 65-1180 Sept. 22 1965
- Naab K.N. “Measurement of Detailed Inertial Properties and Dimensions of a 50th Percentile Anthropometric Dummy.” Proceedings of 10th Stapp Car Crash Conference 1966
- Dempster W. T. Gaughran G. R. L. “Properties of Body Segments Based on Size and Weight.” The American Jrl. of Anatomy 120 1 January 1967
- Martinez John Wickstrom J. Barcelo B. “The Whiplash Injury -- A Study of Head-Neck Action and Injuries in Animals.” Paper 65-WA/ HUF-6 ASME Meeting Chicago November 1965