Comparison of head-neck responses in frontal impacts using restrained human surrogates

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Yoganandan, Narayan¹; Pintar, Frank A.¹; Schlick, Michael¹; Moore, Jason¹; Maiman, Dennis J.¹

Comparison of head-neck responses in frontal impacts using restrained human surrogates

55th Annual Proceedings, Association for the Advancement of Automotive Medicine (AAAM)

Affiliations

¹Department of Neurosurgery, Medical College of Wisconsin, Milwaukee, WI
Abstract

The objective of the study was to evaluate the head and neck kinetics of three-point belted Hybrid III dummy and Test Device for Human Occupant Restraint (THOR) in frontal impacts, and compare their responses with data from post mortem human subjects (PMHS). Surrogates were placed on a buck, capable of accommodating different anthropometry with similar initial positioning. Duplicate tests were conducted at low, medium, and high (3.6, 6.9, and 15.8 m/s) velocities. Upper and lower neck forces and moments were determined from load cell measures and its locations with respect to the ends of the neck. Head excursion-time responses were more repeatable in the Hybrid III dummy than the THOR dummy. Hybrid III dummy response was more rigid in the sagittal plane. Peak THOR motions were closer to PMHS. Based on times of occurrences of peak excursions, THOR was closer to PMHS at all velocities, while Hybrid III dummy showed biofidelity at the medium and high velocities. Controlled positioning and testing with different surrogates provide an evaluation of inter-subject responses. THOR was more likely to "get the head where and when it needs to be" in frontal impacts. With the importance of testing at lower speeds due to recent recognition of real-world injuries, these data suggest that THOR may be an optimal dummy for frontal impacts. Comparisons of head-neck kinetic data with PMHS are valuable in frontal impact injury assessments.

Cited Works (16)

Year	Entry
2009	Forman J, Lopez-Valdes F, Lessley D, Kindig M, Kent R, Ridella S, Bostrom O. Rear seat occupant safety: an investigation of a progressive force-limiting, pretensioning 3-point belt system using adult PMHS in frontal sled tests. Stapp Car Crash J. 2009;53:49-74. SAE 2009-22-0002.
1990	Yoganandan N, Sances A Jr, Pintar F, Maiman DJ, Reinartz J, Cusick JF, Larson SJ. Injury biomechanics of the human cervical column. Spine. October 1990;15(10):1031-1039.
1976	Eppinger RH. Prediction of thoracic injury using measurable experimental parameters. In: Proceedings of the 6th International Technical Conference on Experimental Safety Vehicles (ESV). October 12-15, 1976; Washington, D.C.770-780.
2007	Mertz HJ, Dalmotas DJ. Effects of shoulder belt limit forces on adult thoracic protection in frontal collisions. Stapp Car Crash J. 2007;51:361-380. SAE 2007-22-0015.
2008	Yoganandan N, Pintar FA, Gennarelli TA, Martin PG, Ridella SA. Chest deflections and injuries in oblique lateral impacts. Traffic Inj Prev. June 2008;9(2):162-167.
1999	Yoganandan N, Pintar FA, Kleinberger M. Whiplash injury: biomechanical experimentation. Spine. January 1, 1999;24(1):83-85.
1989	Yoganandan N, Sances A, Pintar F. Biomechanical evaluation of the axial compressive responses of the human cadaveric and manikin necks. J Biomech Eng. August 1989;111(3):250-255.
1997	Pintar FA, Yoganandan N, Hines MH, Maltese MR, McFadden J, Saul R, Eppinger R, Khaewpong N, Kleinberger M. Chestband analysis of human tolerance to side impact. In: Proceedings of the 41st Stapp Car Crash Conference. November 13-14, 1997; Lake Buena Vista, FL. Warrendale, PA: Society of Automotive Engineers:63-74. SAE 973320.
2009	Bean JD, Kahane CJ, Mynatt M, Rudd RW, Rush CJ, Wiacek C. Fatalities in Frontal Crashes Despite Seat Belts and Air Bags: Review of All CDS Cases: Model and Calendar Years 2000-2007: 122 Fatalities. Washington, DC: National Highway Traffic Safety Administration; September 2009. NHTSA Technical Report DOT HS 811 202.
1998	Rangarajan N, White R Jr, Shams T, Beach D, Fullerton J, Haffner MP, Eppinger RE, Pritz H, Rhule D, Dalmotas D, Fournier E. Design and performance of the THOR advanced frontal crash test dummy thorax and abdomen assemblies. In: Proceedings of the 16th International Technical Conference on the Enhanced Safety of Vehicles (ESV). May 31–June 4, 1998; Windsor, Ontario, Canada.1999-2010.
1995	Instrumentation for impact test, I: electronic instrumentation. Society for Automotive Engineers International; March 1995. SAE J211-1.
1998	Yoganandan N, Pintar FA, Larson SJ, Sances A Jr, eds. Frontiers in Head & Neck Trauma: Clinical and Biomechanical. Amsterdam, The Netherlands: IOS Press; 1998.
2008	Pintar FA, Yoganandan N, Maiman DJ. Injury mechanisms and severity in narrow offset frontal impacts. In: 52nd Annual Proceedings, Association for the Advancement of Automotive Medicine (AAAM). October 6-8, 2008; San Diego, CA.185-189.
2005	Yoganandan N, Pintar FA. Deflection, acceleration, and force corridors for small females in side impacts. Traffic Inj Prev. December 2005;6(4):379-386.
2004	Fitzharris M, Fildes B, Newstead S, Logan D. Benefits of Australian design rule 69 (full frontal crash protection) and airbags in frontal crashes in Australia. In: 48th Annual Proceedings, Association for the Advancement of Automotive Medicine (AAAM). September 13-15, 2004; Key Biscayne, FL.35-53.
2011	Hallman JJ, Yoganandan N, Halloway D, Rinaldi J, Pintar FA. Analysis of thoracic loading, kinematics, and injuries in small overlap impacts: field data and full-scale vehicle tests with dummies. In: Proceedings of the 22nd International Technical Conference on the Enhanced Safety of Vehicles (ESV). June 13-16, 2011; Washington, DC.

Cited By (9)

Year	Entry
2012	Yoganandan N, Pintar FA, Moore J, Rinaldi J, Schlick M, Maiman DJ. Upper and lower neck loads in belted human surrogates in frontal impacts. In: 56th Annual Proceedings, Association for the Advancement of Automotive Medicine (AAAM). October 14-17, 2012; Seattle, WA.125-136.
2014	Ouckama R, Pearsall DJ. Projectile impact testing of ice hockey helmets: headform kinematics and dynamic measurement of localized pressure distribution. In: Proceedings of the 2014 International IRCOBI Conference on the Biomechanics of Injury. September 10-12, 2014; Berlin, Germany.62-71.
2016	Pipkorn B, Lopez‐Valdes FJ, Juste‐Lorente O, Maza M, Sunnevång C. Study of the kinematics of the THOR dummy in nearside oblique impacts. In: Proceedings of the 2016 International IRCOBI Conference on the Biomechanics of Injury. September 14-16, 2016; Malaga, Spain.637-648.
2017	Östling M, Saito H, Vishwanatha A, Ding C, Pipkorn B, Sunnevång C. Potential benefit of a 3+2 criss cross seat belt system in frontal and oblique crashes. In: Proceedings of the 2017 International IRCOBI Conference on the Biomechanics of Injury. September 13-15, 2017; Antwerp, Belgium.390-409.
2018	Kuo C. Measurement and Modeling of Head Impact Kinematics [PhD thesis]. Stanford University; May 2018.
2022	Wynn GF. Repeatability of a Novel Prototype Surrogate Neck Model Developed for Omni-Directional Head Impacts [Master's thesis]. Edmonton, AB: University of Alberta; 2022.
2020	Fonseca G. Development of a Functional Spinal Unit for Evaluation of Sports and Automotive Protective Equipment [Master's thesis]. Vancouver, BC: University of British Columbia; April 2020.
2015	Beeman SM. Biomechanical Response of Human Volunteers and Surrogates in a Variety of Loading Regimes [PhD thesis]. Virginia Polytechnic Institute and State University; 2015.
2018	Albert DL. Biomechanical Responses of Human Surrogates Under Various Frontal Loading Conditions With an Emphasis on Thoracic Response and Injury Tolerance [PhD thesis]. Virginia Polytechnic Institute and State University; April 19, 2018.