Rollover crash neck injury replication and injury potential assessment

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Paver, Jacqueline G.¹; Friedman, Donald²; Carlin, Fred³; Bish, Jack¹; Caplinger, Justin¹; Rohde, David¹

Rollover crash neck injury replication and injury potential assessment

Proceedings of the 2008 International IRCOBI Conference on the Biomechanics of Impact

Affiliations

¹Consultant

²Xprts, LLC

³University of California Santa Barbara
Abstract and keywords

Catastrophic neck compression and flexion injuries with quadriplegia are foreseeable outcomes of rollover crashes. However, current static regulatory tests cannot directly predict realworld rollover neck injuries. In this study, a dynamic test was developed and integrated bending moment (IBM) criteria proposed that can replicate/predict rollover neck flexion injuries with the Hybrid III dummy, upper and lower neck load cells, and a lateral vehicle camera. Platen drop tests were performed, revealing realistic pre-trip occupant positioning and a relationship between upper and lower neck loading. Dynamic rollover tests of 5 cars (FMVSS roof SWR range = 2.3 to 5.1) showed reduced neck flexion injury potential with increasing SWR and minimum roof SWR threshold of about 3.5 consistent with other proposed rollover injury criteria.

Keywords: Crashworthiness; Rollover Accidents; Biofidelity; Neck; Injury Criteria

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Cited By (10)

Year	Entry
2009	Friedman D, Grzebieta R. Vehicle roof geometry and its effect on rollover roof performance. In: Proceedings of the 21st International Technical Conference on the Enhanced Safety of Vehicles (ESV). June 15-18, 2009; Stuttgart, Germany.
2009	Friedman D, Grzebieta R. A proposed rollover and comprehensive rating system. In: Proceedings of the 21st International Technical Conference on the Enhanced Safety of Vehicles (ESV). June 15-18, 2009; Stuttgart, Germany.
2011	Friedman D, Rico D, Mattos G, Paver J. Predicting and verifying dynamic occupant protection. In: Proceedings of the 22nd International Technical Conference on the Enhanced Safety of Vehicles (ESV). June 13-16, 2011; Washington, DC.
2011	Friedman D, Mattos G, Paver J. The development of a dynamic rollover rating test. In: Proceedings of the 22nd International Technical Conference on the Enhanced Safety of Vehicles (ESV). June 13-16, 2011; Washington, DC.
2013	Grzebieta R, Bambach M, McIntosh A, Mattos G, Simmons K, Rechnitzer G, Digges K. Replicating real world rollover crash injuries. In: Proceedings of the 23rd International Technical Conference on the Enhanced Safety of Vehicles (ESV). May 27-30, 2013; Seoul, South Korea.
2013	Paver JG, Friedman D, Jimenez JA. Correlating human and flexible dummy head-neck injury performance. In: Proceedings of the 23rd International Technical Conference on the Enhanced Safety of Vehicles (ESV). May 27-30, 2013; Seoul, South Korea.
2008	Paver JG, Friedman D, Carlin F, Bish J, Caplinger J. Development of rollover injury assessment instrumentation and criteria. In: Proceedings of the 36th International Workshop on Human Subjects for Biomechanical Research. November 2, 2008; San Antonio, TX.
2012	Foster JB, Kerrigan JR, Nightingale RW, Funk JR, Cormier JM, Bose D, Sochor MR, Ridella SA, Ash JH, Crandall J. Analysis of cervical spine injuries and mechanisms for CIREN rollover crashes. In: Proceedings of the 2012 International IRCOBI Conference on the Biomechanics of Injury. September 12-14, 2012; Dublin, Ireland.61-76.
2013	Newell RS, Blouin J-S, Street J, Cripton PA, Siegmund GP. Neck posture and muscle activity are different when upside down: a human volunteer study. J Biomech. November 15, 2013;46(16):2837-2843.
2013	Foster J. Injury Mechanisms and Priorities for Cervical Spine Trauma Mitigation in Rollover Crashes: The Development and Analysis of in Vitro Testing of Axial Compressive Cervical Spine Impacts [Master's thesis]. Charlottesville, VA: University of Virginia; May 2013.