We scanned and have posted here:
- 1963 "Analysis of the Dynamics of Automobile Passenger- Restraint Systems",
- 1966 “Computer Simulation of the Crash Victim – A Validation Study”, McHenry, Nabb
- Also see related topics in the McHenry Forum: ATB & Occupant Pedestrian Reconstruction
- In 1963 the U.S. Public Health Service and the Automobile Manufacturer’s Association, Inc. funded research at Calspan performed by Raymond R. McHenry to develop a mathematical model of an automobile occupant in a longitudinal collision. The resulting computer program was called the CAL-2D(i, ii, iii). The research was aimed at the development of a response to a Consumer Reports issue and related reports (v,vi) that included the assertion that American belts failed under the Swedish test conditions and "the major points of failure of the belts tested were the webbing…and the floor brackets themselves".
The CAL-2D model was created "in order to help improve understanding of the complex relationships of force-acceleration-time-position-velocity that occur in the impact and energy-absorbing cycle of automobile passenger restraint systems". The study was performed to provide guidance concerning
- (1) fundamental differences in the results obtained by static and dynamic testing and
- (2) the possible need for dynamic acceptance testing of seat belts.
- "the use of a very short stopping distance in a cart test of lap belts can produce a distorted comparison of the strength (when belt loads are not measured) and the performance of webbing materials with different load-elongation characteristics.
A short (3 inch) cart-stopping distance, from 25 mph, produces increases in the magnitudes of both primary and secondary belt loading cycles over those obtained a more "realistic" (17 inch) stopping distance, as encountered in automobile crashes".
- Occupant Kinematics in Forensics: Evaluating the Appropriateness and Applicability of an ATB Application
- i McHenry “Analysis of the Dynamics of Automobile Passenger- Restraint Systems”, 7th Stapp Car Conference Proceedings, SAE, 1966
- ii McHenry, Naab “Computer Simulation of the Crash Victim – A Validation Study”, SAE paper 660792, SAE 1966
- iii Cheng, Sens, Weichel, Gunther “An Overview of the Evolution of Computer Assisted Motor Vehicle Accident Reconstruction”, SAE paper 87-1881
- iv Consumer Reports, October 1961, Articles by Michelson and Tourin
- v Michelson, Torin, "Consumer Union's Dynamic Tests of Seat Belts", 5th Stapp Automotive Crash and Field Demonstration Conference, September 1961
- vi Michelson, I., Aldman, B., Tourin, B. and Mitchel, J. "Dynamic Tests of Automobile Passenger Restraining Devices", Presentation to Committee No. 6, Department of Traffic and Operations, Annual Meeting of the Highway Research Board, Washington DC, January 7, 1963