Pedestrian shoulder and spine kinematics in full‐scale PMHS tests for human body model evaluation

Paas, Ruth; Davidsson, Johan; Masson, Catherine; Sander, Ulrich; Brolin, Karin; Yang, Jikuang

Affiliations

¹Faculty of Applied Mechanics, Chalmers University of Technology, Gothenburg, Sweden

²French Institute of Science and Technology devoted to Transport, Planning and Networks (IFSTTAR), France

Abstract and keywords

Tools such as human body models are required to show the benefit of restraints needed to reduce risk of injuries and fatalities for pedestrians. To assess the biofidelity of these tools, representative, detailed validation data are required.

One aim was to investigate shoulder and spine response in pedestrian/vehicle collisions by analysing new and existing post mortem human subject (PMHS) full‐scale tests. Furthermore, assessment was performed whether the specific loading conditions in these PMHS tests were similar to existing component tests and representative of real‐life accidents.

A full‐scale PMHS test was conducted for detailed 6DOF analysis, and three tests were re‐analysed. The hands were not tied together in any of the tests, different leg positions were used. To compare loading conditions with real life, accident data was analysed.

Beginning with pelvis impact, the spine was drawn inferiorly while the head rotated contralaterally. Before elbow‐to‐vehicle contact, the ipsilateral scapula rotated upwards, elevated and adducted. Following elbow contact it elevated rapidly until shoulder‐to‐vehicle impact. Elbow contact appeared to affect the thorax and head kinematics; the head rotated towards the vehicle worsening the head impact. The results underline the necessity to collect additional 6DOF elbow, scapula and spine data in full‐scale pedestrian impacts.

Keywords: Kinematics, Pedestrian, PMHS, Shoulder, Spine

Links

URL: http://www.ircobi.org/downloads/irc12/pdf_files/79.pdf

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Cited By (3)

Year	Entry
2015	Poulard D, Chen H, Crandall JR, Dziewoński T, Pędzisz M, Panzer MB. Component‐level biofidelity assessment of morphed pedestrian finite element models. In: Proceedings of the 2015 International IRCOBI Conference on the Biomechanics of Injury. September 9-11, 2015; Lyon, France.577-593.
2022	Haverfield ZA, Hunter RL, Loftis KL, Agnew AM. Skeletal site and method-dependent variability of bone mineral density in injury biomechanics research. In: Proceedings of the 2022 International IRCOBI Conference on the Biomechanics of Injury. September 14-16, 2022; Porto, Portugal.332-360.
2017	Chen H. Evaluating Pedestrian Head Sub-System Test Procedure Against Full-Scale Vehicle-Pedestrian Impact Using Numerical Models [PhD thesis]. Charlottesville, VA: University of Virginia; May 2017.