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Side Impact Crashworthiness Design: Evaluation of Padding Characteristics Through Mathematical Simulations
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Sector:
Event:
Stapp Car Crash Conference
Language:
English
Abstract
The National Highway Traffic Safety Administration (NHTSA) has developed a lumped mass computer model which simulates the interaction of a struck car door and an adjacent two dimensional seated dummy in side impacts. This model was used to investigate the effect of various vehicle design parameters on occupant responses and to define various methods to improve vehicle safety performance.
This paper discusses the effectiveness of door padding and side structural stiffness to minimize potential for occupant thoracic injuries in 90° side impacts. Occupant response data were obtained with the aid of the computer model for a Moving Deformable Barrier striking a car at lateral velocities of 25, 30 and 35 mph. To determine the optimal padding and structure needed to minimize potential occupant injury, the Thoracic Trauma Index (TTI) was mapped in terms of different levels of struck car side stiffness and padding characteristics.
Authors
Citation
Trella, T., Gabler, H., Kanianthra, J., and Wagner, J., "Side Impact Crashworthiness Design: Evaluation of Padding Characteristics Through Mathematical Simulations," SAE Technical Paper 912900, 1991, https://doi.org/10.4271/912900.Also In
References
- Trella, TJ. Kanianthra, JN. “Application of Derived Characteristics from Dynamic Test Data for Simulation of Car-to-Car Side impacts Using a Lumped Mass Approach,” SAE Paper 851187
- Trella, TJ. Kanianthra, J.N. “Occupant Response Sensitivity Analyses Using a Lumped Mass Model in Simulation of Car-to-Car Impacts,” 10th International Technical Conference on Experimental Safety Vehicles Oxford, England 1985
- Trella, T.J. Kanianthra, J.N. “Analytical Simulation of the Effects of Structural Parameters on Occupant Responses in Side Impacts of Passenger Cars,” 11th International Technical Conference on Experimental Safety Vehicles Washington, D.C. May 1987
- Kanianthra, J.,N et al. “Safety Performance Evaluation of Production Vehicles in Side Impacts Using the Modeling Approach,” 12th International Technical Conference on Experimental Safety Vehicles Gothenburg Sweden May 1989
- Federal Register, Part II, 49 CFR Parts 571 et al. “Federal Motor Vehicle Safety Standards; Side Impact Protection; Rules,” 55 210 October 30 1990
- Hasegawa, J. et al. “Side Impact Simulation Analysis Using an Improved Occupant Model,” 12th International Technical Conference on Experimental Safety Vehicles Gothenburg, Sweden May 1989
- Low, T.C. Prasad, P. “Dynamic Response and Mathematical Model of the Side Impact Dummy,” SAE Paper 902321
- “Fiat Automotive Structural Crashworthiness Computer Program B,” Dynamic Science Inc. Report No. 4890-76-52 August 30 1976