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Influence of Mass Ratio and Structural Compatibility on the Severity of Injuries Sustained by the Near Side Occupants in Car-to-Car Side Collisions
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English
Abstract
In 1344 car-to-car side collisions, the risk of serious or fatal injury to the occupants of struck vehicles seem to increase proportionally to the difference in mass ratios in favor of the striking vehicle.
However, in-depth analysis of 63 collisions during which the impact occurred on the side panel of the passenger compartment reveals that the difference in mass ratios is not the principal determinant of injury severity.
The frequency and severity of injuries correlates better with the amount of intrusion of the side panel, a type of intrusion which occurs almost systematically, and even at low impact speed, when the bumper and structure in front of the side rail of the striking car override the rocker panel of the struck car.
We shall show the relationship between the severity of chest, abdominal and pelvic injuries sustained by occupants seated perpendicularly to the intruding panel and the following parameters:
- mass ratio
- compatibility of the relative heights of the stiffest elements involved in the impact
- impact speed
- ΔV of the struck car
- intrusion
We shall indicate the structural modifications which might improve protection of occupants involved in side collision with another car.
Authors
- F. Hartemann - Laboratoire de Physiologie et de Biomécanique de l'Association Peugeot-Renault La Garenne-Colombes (France)
- J.Y. Foret-Bruno - Laboratoire de Physiologie et de Biomécanique de l'Association Peugeot-Renault La Garenne-Colombes (France)
- C. Thomas - Laboratoire de Physiologie et de Biomécanique de l'Association Peugeot-Renault La Garenne-Colombes (France)
- C. Tarrière - Laboratoire de Physiologie et de Biomécanique de l'Association Peugeot-Renault La Garenne-Colombes (France)
- C. Got - IRO/IRBA Hôpital Raymond Poincaré Garches (France)
- A. Patel - IRO/IRBA Hôpital Raymond Poincaré Garches (France)
Topic
Citation
Hartemann, F., Foret-Bruno, J., Thomas, C., Tarrière, C. et al., "Influence of Mass Ratio and Structural Compatibility on the Severity of Injuries Sustained by the Near Side Occupants in Car-to-Car Side Collisions," SAE Technical Paper 791010, 1979, https://doi.org/10.4271/791010.Also In
References
- Stcherbatcheff G. Ventre P. “Car Structure Improvement for Occupant Protection in Side Impact” Peugeot-Renault/French Government 1979
- Monk M. Burgett A. Delarm L. “Computerized Side Impact Injury Analysis” Proceedings of the 21st Stapp Car Crash Conference S.A.E. Inc. 1977
- Danner J.M. “Accident and Injury Characteristics in Side Collisions and Protection Criteria in Respect of Belted Occupants” Proceedings of the 21st Stapp Car Crash Conference S.A.E. Inc. 1977
- Cesari D. Ramet M. Herry-Martin D. “Injury Mechanisms in Side Impact” Proceedings of the 22nd Stapp Car Crash Conference S.A.E. Inc. 1978
- Lister R.D. Neilson T.D. “Protection of Car Occupants Against Side Impacts” Proceedings of the 11th Stapp Car Crash Conference S.A.E. Inc. 1970
- Hartemann F. Thomas C. Foret-Bruno J.Y. Henry C. Fayon A. Terriere C. “Occupant Protection in Lateral Impact” Proceedings of the 20th Stapp Car Crash Conference S.A.E. Inc. 1976