Matched-pair rollover impacts of rollcaged and production roof cars using the controlled rollover impact system (CRIS)

Moffatt, E. A.; Cooper, E. R.; Croteau, J. J.; Orlowski, K. F.; Marth, D. R.; Carter, J. W.

Affiliations

¹Biomech, Inc.

²Exponent Failure Analysis Associates, Inc.

³Safety Analysis, Inc.

⁴Ford Motor Company

⁵Origin Engineering

Abstract

Three rollcaged and three production roof vehicles were exposed to matched-pair rollover impacts using the Controlled Rollover Impact System (CRIS). The roof-to- ground contacts were representative of severe impacts in previous rollover testing and real world rollovers. The seat belted dummies measured nearly identical head impacts and neck loads with or without the rollcage, despite significant roof crush in the production roof vehicles. Roof crush had no measurable influence on the severity of the head accelerations and neck loads.

Links

DOI: 10.4271/2003-01-0172

SAE: 2003-01-0172

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2007	Hu J, Chou CC, Yang KH, King AI. A weighted logistic regression analysis for predicting the odds of head/face and neck injuries during rollover crashes. In: 51st Annual Proceedings, Association for the Advancement of Automotive Medicine (AAAM). October 15-17, 2007; Melbourne, Australia.363-379.
2009	Brumbelow ML, Teoh ER. Roof strength and injury risk in rollover crashes of passenger cars and SUVs. 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.
2013	Friedman D, Jimenez JA, Paver J. Predicting a vehicle’s dynamic rollover injury potential from static measurements. In: Proceedings of the 23rd International Technical Conference on the Enhanced Safety of Vehicles (ESV). May 27-30, 2013; Seoul, South Korea.
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2015	Han B, Oh Y, Lee E, Lee J, Kim G. The effects of road contact angles and pitch/yaw angles on the injuries of drivers in CRIS test. In: Proceedings of the 24th International Technical Conference on the Enhanced Safety of Vehicles (ESV). June 8-11, 2015; Gothenburg, Sweden.
2007	Hu J, Yang KH. Finite element investigation of head and neck injury mechanism during rollover crashes. In: Proceedings of the 35th International Workshop on Human Subjects for Biomechanical Research. 2007.93-110.
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2011	Newell RS, Siegmund GP, Cripton PA. Neck vertebral alignment and muscle activation is affected by whole body inversion. In: Proceedings of the 39th International Workshop on Human Subjects for Biomechanical Research. 2011.
2008	Brumbelow ML, Teoh ER, Zuby DS, McCartt AT. Roof strength and injury risk in rollover crashes. In: Proceedings of the 2008 International IRCOBI Conference on the Biomechanics of Impact. September 17-19, 2008; Bern, Switzerland.49-61.
2013	Zhang Q, Kerrigan J, Lessley D, Seppi J, Riley P, Foltz P, Lockerby J, Overby B, Sowers C, Crandall J. Whole‐body kinematics: response comparison of the Hybrid III and Hybrid III pedestrian ATD in DRoTS rollover tests. In: Proceedings of the 2013 International IRCOBI Conference on the Biomechanics of Injury. September 11-13, 2013; Gothenburg, Sweden.330-367.
2015	Ridella SA, Bojanowski C. Sensitivity analysis on the influence of vehicle factors on the kinematic response of a mid‐sized male crash dummy during a simulation of a controlled rollover crash. In: Proceedings of the 2015 International IRCOBI Conference on the Biomechanics of Injury. September 9-11, 2015; Lyon, France.596-607.
2014	Van Toen C, Melnyk AD, Street J, Oxland TR, Cripton P. The effects of lateral eccentricity on failure loads and injuries of the cervical spine in head-first impacts. In: Proceedings of the 10th Ohio State University Injury Biomechanics Symposium. May 18-20, 2014; Columbus, OH.
2018	Schoenfeld M, Fice J, Blouin J-S, Siegmund GP, Cripton P. Cervical vertebral kinematics and neck muscle responses during an inverted free fall simulating a vehicle rollover: pilot data from an in vivo human subject experiment. In: Proceedings of the 14th Ohio State University Injury Biomechanics Symposium. May 20-22, 2018; Columbus, OH.
2014	Zhang Q, Lessley DJ, Riley P, Toczyski J, Lockerby J, Foltz P, Overby B, Seppi J, Crandall JR, Kerrigan JR. Occupant kinematics in laboratory rollover tests: ATD response and biofidelity. Stapp Car Crash J. November 2014;58:317-360.
2012	Van Toen C, Street J, Oxland TR, Cripton PA. Acoustic emission signals can discriminate between compressive bone fractures and tensile ligament injuries in the spine during dynamic loading. J Biomech. June 1, 2012;45(9):1643-1649.
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2010	Nelson TS, Cripton PA. A new biofidelic sagittal plane surrogate neck for head-first impacts. Traffic Inj Prev. June 2010;11(3):309-319.
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2017	Schmidt AL. Assessing the Injury Tolerance of the Human Spine [PhD thesis]. Duke University; 2017.
2011	Nelson TS. Towards a Neck Injury Prevention Helmet for Head-First Impacts: A Mechanical Investigation [PhD thesis]. Vancouver, BC: University of British Columbia; December 2011.
2013	Van Toen CY. Biomechanics of Cervical Spine and Spinal Cord Injury Under Combined Axial Compression and Lateral Bending Loading [PhD thesis]. Vancouver, BC: University of British Columbia; December 2013.
2018	Schoenfeld M. Cervical Intervertebral Kinematics and Neck Muscle Responses During Simulated Vehicle Rollovers [Master's thesis]. Vancouver, BC: University of British Columbia; August 2018.
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.
2013	Lockerby JW. Roof Deformation in Vehicle Rollover: The Case for Including an Energy Criterion in Vehicle Crashworthiness Evaluation [Master's thesis]. Charlottesville, VA: University of Virginia; December 2013.
2015	Seppi JH. Repeatability Study of the Dynamic Rollover Test System (DRoTS) Using an Objective Rating Method [Master's thesis]. Charlottesville, VA: University of Virginia; May 2015.
2007	Hu J. Neck Injury Mechanism in Rollover Crashes: A Systematic Approach for Improving Rollover Neck Protection [PhD thesis]. Detroit, MI: Wayne State University; 2007.
2013	Toomey DE. Cervical Spine Tolerance and Response in Compressive Loading Modes Including Combined Compression and Lateral Bending [PhD thesis]. Detroit, MI: Wayne State University; May 2013.