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Whole-body Response for Pedestrian Impact with a Generic Sedan Buck
Technical Paper
2015-22-0016
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English
Abstract
To serve as tools for assessing injury risk, the biofidelity of whole-body pedestrian impact dummies should be validated against reference data from full-scale pedestrian impact tests. To facilitate such evaluations, a simplified generic vehicle-buck has been recently developed that is designed to have characteristics representative of a generic small sedan. Three 40 km/h pedestrian-impact tests have been performed, wherein Post Mortem Human Surrogates (PMHS) were struck laterally in a mid-gait stance by the buck. Corridors for select trajectory measures derived from these tests have been published previously. The goal of this study is to act as a companion dataset to that study, describing the head velocities, body region accelerations (head, spine, pelvis, lower extremities), angular velocities, and buck interaction forces, and injuries observed during those tests. Scaled, transformed head accelerations exceeded 80 g prior to head contact with the windshield for two of the three tests. Head x-axis angular velocity exceeded 40 rad/s prior to head contact for all three tests. In all cases the peak resultant head velocity relative to the vehicle was greater than the initial impact speed of the vehicle. Corridors of resultant head velocity relative to the vehicle were also developed, bounded by the velocities observed in these tests combined with those predicted to occur if the PMHS necks were perfectly rigid. These results, along with the other kinematic and kinetic data presented, provide a resource for future pedestrian dummy development and evaluation.
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Authors
- Jason L. Forman - University of Virginia
- Hamed Joodaki - University of Virginia
- Ali Forghani - University of Virginia
- Patrick O. Riley - University of Virginia
- Varun Bollapragada - University of Virginia
- David J. Lessley - University of Virginia
- Brian Overby - University of Virginia
- Sara Heltzel - University of Virginia
- Jason R. Kerrigan - University of Virginia
- Jeff R. Crandall - University of Virginia
- Seth Yarboro - University of Virginia
- David B. Weiss - University of Virginia
Citation
Forman, J., Joodaki, H., Forghani, A., Riley, P. et al., "Whole-body Response for Pedestrian Impact with a Generic Sedan Buck," SAE Technical Paper 2015-22-0016, 2015, https://doi.org/10.4271/2015-22-0016.Also In
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