A parametric study of far-side restraint mechanics

Kent, Richard; Forman, Jason; Lessley, David; Arbogast, Kristy; Higuchi, Kazuo

Affiliations

¹Center for Applied Biomechanics, University of Virginia, USA

²Children’s Hospital of Philadelphia, USA

³Takata, Japan

Abstract

The goal of this study was to quantify the belttorso interaction and whole-body kinematics in far-side lateral impacts and how they depend on shoulder-belt geometry, arm position, and belt pretensioning. A series of repeated 90-deg far-side impacts on three post-mortem human subjects was performed. A 3-d motion capture system measured skeletal kinematics. Arm position (Down, Slightly Up, Fully Up), D-ring location (Forward, Back, Intermediate), pre-tensioning (Yes, No), and impact severity (8g, 18g) were varied. Maximum lateral head excursion was found to be slightly sensitive to arm position and highly sensitive to Dring location, pre-tensioning, and impact severity. An interaction between D-ring location and pretensioning was found, with the maximum pretensioning effect occurring at the Intermediate Dring position. Limitations of this study include the use of repeated impacts and consideration of a single impact angle. 60-degree far-side oblique impacts are underway to assess the robustness of the conclusions drawn here.

Links

URL: http://www-nrd.nhtsa.dot.gov/pdf/esv/esv23/23ESV-000381.pdf

Cited Works (6)

Year	Entry
2011	Lessley D, Shaw G, Riley P, Forman J, Crandall J. Assessment and validation of a methodology for measuring anatomical kinematics of restrained occupants during motor vehicle collisions. J Biosens Bioelectron. 2011;S1:002.
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2009	Shaw G, Parent D, Purtsezov S, Lessley D, Crandall J, Kent R, Guillemot H, Ridella SA, Takhounts E, Martin P. Impact response of restrained PMHS in frontal sled tests: skeletal deformation patterns under seat belt loading. Stapp Car Crash J. 2009;53:1-48. SAE 2009-22-0001.
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Cited By (4)

Year	Entry
2015	Bahouth GT, Murakhovskiy D, Digges KH, Rist H, Wiik R. Opportunities for reducing far-side casualties. In: Proceedings of the 24th International Technical Conference on the Enhanced Safety of Vehicles (ESV). June 8-11, 2015; Gothenburg, Sweden.
2017	Youn Y, Park J, Kim D, Kim S, In J. Comparison of injury seversity between near and far side occupants on the side collisions. In: Proceedings of the 25th International Technical Conference on the Enhanced Safety of Vehicles (ESV). June 5-8, 2017; Detroit, MI.
2016	Arun MWJ, Umale S, Humm JR, Yoganandan N, Pintar FA. Impact response evaluation of a restrained whole human body finite element model under far‐side 90 and 60 degree impacts. In: Proceedings of the 2016 International IRCOBI Conference on the Biomechanics of Injury. September 14-16, 2016; Malaga, Spain.694-706.
2013	Forman JL, Lopez-Valdes F, Lessley DJ, Riley P, Sochor M, Heltzel S, Ash J, Perz R, Kent RW, Seacrist T, Arbogast KB, Tanji H, Higuchi K. Occupant kinematics and shoulder belt retention in far-side lateral and oblique collisions: a parametric study. Stapp Car Crash J. November 2013;57:343-385.