This content is not included in
your SAE MOBILUS subscription, or you are not logged in.
Dynamic Modeling and Rollover Simulations for Evaluation of Vehicle Glazing Materials
Annotation ability available
Sector:
Language:
English
Abstract
The objective of this study was to mathematically model several proposed vehicle glazing materials using derived force-deflection characteristics, validate the models' dynamic behavior, and use the resulting glazing models in simulations of occupant dynamics during vehicle rollover. Simulations were performed with the three-dimensional, multibody dynamics program, the Articulated Total Body (ATB) model. The contact characteristics of side windows of tempered glass; polymethyl methacrylimide, also referred to as PMMI; and polycarbonate; as well as windshields from Ford Tempos and Jeeps, were developed from headform impact tests. These characteristics were first validated by performing simulations of the headform impact tests, and were then included in rollover simulations. Previously validated simulations of belted driver and unbelted passenger dynamics during an actual rollover accident were used as the baseline simulations. The contact characteristics of each type of glazing material were substituted for the window and windshield functions used in the accident simulations, and new simulations were run. Additional parametric simulations were run using modified contact characteristic parameters in order to determine which features of the force-deflection curves are the most important for reducing injury risk. For all the rollover simulations, the resulting head accelerations, 36 msec Head Injury Criteria (HIC) values, neck forces and torques, glazing energy absorption, and containment are obtained.
Recommended Content
Authors
Topic
Citation
Ma, D., Rizer, A., and Obergefell, L., "Dynamic Modeling and Rollover Simulations for Evaluation of Vehicle Glazing Materials," SAE Technical Paper 950050, 1995, https://doi.org/10.4271/950050.Also In
References
- Harper, C. B. Partyka, S. C. “A Review of Motor Vehicle Glazing-Related Ejection Injuries,” SAE Paper 930740 , International Congress and Exposition Detroit, Michigan 1993
- Headform Impact Glazing Test Setup and Test Data Duffy, S. J. Mr. Vehicle Research & Test Center, NHTSA East Liberty, Ohio 1994
- Reilly, J. J. Miller, P. M. “Headform Impact Testing of Plastic Glazing Materials,” SAE Paper 930741 , International Congress and Exposition Detroit, Michigan March 1993
- El-Habash, N. A. “Vehicle and Dummy Kinematics in a Controlled Rollover Crash, 1988 Dodge Caravan Mini Van,” The transportation Research Center of Ohio July-August 1988
- El-Habash, N. A. “Vehicle and Dummy Kinematics in a Controlled Rollover Crash, 1989 Dodge Caravan,” The transportation Research Center of Ohio October - November 1989
- Obergefell, L. A. Gardner, T. R. Kaleps, I. Fleck, J. T. “Articulated Total Body Model Enhancements,” II 1988
- Fleck, J. T. Butler, F. E. Deleys, N. J. “Validation of the Crash Victim Simulator,” 1982
- Kaleps, I. Obergefell, L. A. Ryerson, J. “Simulation of Restrained Occupant Dynamics during Vehicle Rollover,” Final Report for DOT Interagency Agreement DTNH22-83-X-07296 1983
- Obergefell, L. A. Rizer, A. L. Kaleps, I. “Simulations of Rollover Tests,” 1988
- Rizer, A. L. Obergefell, L. A. Kaleps, I. “Simulations of Vehicle Dynamics during Rollover,” 1989
- Cheng, H. Rizer, A. L. Obergefell L. A. “Pickup Truck Rollover Accident Reconstruction Using the ATB Model,” SAE Paper 950134 , International Congress and Exposition Detroit, Michigan 1995
- Cheng, H. Obergefell, L. A. Rizer, A. L. “ATB Model Simulation of a Rollover Accident with Occupant Ejection,” SAE Paper 950133 , International Congress and Exposition Detroit, Michigan 1995