This content is not included in your SAE MOBILUS subscription, or you are not logged in.
The Influence of Pelvis Design on the Lateral Pelvic Impact Response of the Polar-II Pedestrian Dummy
ISSN: 0148-7191, e-ISSN: 2688-3627
Published April 03, 2006 by SAE International in United States
Annotation ability available
Previous studies utilizing the Polar-II pedestrian dummy have suggested the need for a more biofidelic pelvis design in order to improve the overall dummy response kinematics. The current Polar-II dummy pelvis is a rigid steel structure. A preliminary version of a modified deformable pelvis equipped with sensors for measuring internal deflection and load has been designed. The goal of this study was to assess the biofidelity of these two pelves in full-scale tests with the Polar-II dummy that mimic lateral pelvic impact tests on PMHS (post-mortem human subjects) reported in the literature. The force - time, deflection - time, and force - deflection histories were compared to new PMHS response corridors determined using a normalization technique. In all tests with both pelves, the initial response (i.e., the first 3 ms to 5 ms following initial dummy - impactor contact) appeared to be totally determined by the mechanical behavior of the flesh. The response beyond the first 3 ms to 5 ms was instead influenced by the characteristics of both the flesh and the underlying pelvic structure. Overall, the modified pelvis demonstrated a more biofidelic impact response than its predecessor.
CitationSubit, D., Ivarsson, J., Crandall, J., Kikuchi, Y. et al., "The Influence of Pelvis Design on the Lateral Pelvic Impact Response of the Polar-II Pedestrian Dummy," SAE Technical Paper 2006-01-0682, 2006, https://doi.org/10.4271/2006-01-0682.
- Akiyama A., Okamoto M., and Rangarajan N.. Development and application of the new pedestrian dummy. In 17th Conference on the Enhanced Safety of Vehicles, Amsterdam, The Netherlands, number Paper 463, 2001.
- Kerrigan J., Kam C., Drinkwater C., Murphy D., Bose D., Ivarsson J., and Crandall J.. Kinematic comparison of the polar-II and PMHS in pedestrian impact tests with a sport-utility vehicle. In International Conference on the Biomechanics of Impacts (IRCOBI), Prague, Czech Republic, 2005.
- Kerrigan J., Murphy D., Drinkwater D., Kam C., Bose D., and Crandall J.. Kinematic corridors for pmhs tested in full-scale pedestrian impact tests. In Proc. 19th Conference on the Enhanced Safety of Vehicles (ESV), Washington DC, United States, number NHTSA, Paper 05-0394, 2005.
- Césari D. and Ramet M.. Pelvic tolerance and protection criteria in side impact. In Proceedings of the 26th Stapp Car Crash Conference, 1982.
- Scales V.L.. Fracture tolerance of human cadaveric pelves subjected to dynamic loads. Master's thesis, University of Alabama at Birmingham, 1993.
- Guillemot H., Got C., Besnault B., Lavaste F., Robin S., Le Coz J.Y., and Lassau J.-P.. Pelvic behavior in side collisions: static and dynamic tests on isloted pelvic bones. In Proc. Conference on the Enhanced Safety of Vehicles (ESV), number Paper number 98-S6-W-37, 1998.
- Matsui Y., Kajzer J., Wittek A., Ishikawa H., Schroeder G., and Bosch U.. Injury pattern and tolerance of human pelvis under lateral loading, simulating car-pedestrian impact. In SAE Conference, number SAE paper 2003-01-0165, 2003.
- Césari D., Ramet M., and Clair P.-Y.. Evaluation of pelvic fracture tolerance in side impact. In Proceedings of the 24th Stapp Car Crash Conference, 1980.
- Viano D.. Biomechanical responses and injuries in blunt lateral impact. In Proceedings of the 33rd Stapp Car Crash Conference, 1989.
- Lessley D., Crandall J., Shaw G., and Kent R.. A normalization technique for developing corridors for individual subject force-deflection responses. In SAE Conference, number SAE paper 892432, 2004.
- Mertz J.H.. A procedure for normalizing impact response data. In SAE Technical Paper, number 840884, 1984.