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Biomechanical Considerations for Assessing Interactions of Children and Small Occupants with Inflatable Seat Belts
Technical Paper
2013-22-0004
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English
Abstract
NHTSA estimates that more than half of the lives saved (168,524) in car crashes between 1960 and 2002 were due to the use of seat belts. Nevertheless, while seat belts are vital to occupant crash protection, safety researchers continue efforts to further enhance the capability of seat belts in reducing injury and fatality risk in automotive crashes. Examples of seat belt design concepts that have been investigated by researchers include inflatable, 4-point, and reverse geometry seat belts. In 2011, Ford Motor Company introduced the first rear seat inflatable seat belts into production vehicles.
A series of tests with child and small female-sized Anthropomorphic Test Devices (ATD) and small, elderly female Post Mortem Human Subjects (PMHS) was performed to evaluate interactions of prototype inflatable seat belts with the chest, upper torso, head and neck of children and small occupants, from infants to young adolescents. Tests simulating a 6-year-old child asleep in a booster seat, with its head lying directly on its shoulder on top of the inflatable seat belt, were considered by engineering judgment, to represent a worst case scenario for interaction of an inflating seat belt with the head and neck of a child and/or small occupant.
All evaluations resulted in ATD responses below Injury Assessment Reference Values reported by Mertz et al. (2003). In addition, the tests of the PMHS subjects resulted in no injuries from interaction of the inflating seat belt with the heads, necks, and chests of the subjects. Given the results from the ATD and PMHS tests, it was concluded that the injury risk to children and small occupants from deployment of inflatable seat belt systems is low.
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Authors
- Stephen W. Rouhana - Ford Motor Company
- Srinivasan Sundararajan - Ford Motor Company
- Derek Board - Ford Motor Company
- Priya Prasad (Retired) - Ford Motor Company
- Jonathan D. Rupp - University of Michigan Transportation Research Institute
- Carl S. Miller - University of Michigan Transportation Research Institute
- Thomas A. Jeffreys - University of Michigan Transportation Research Institute
- Lawrence W. Schneider - University of Michigan Transportation Research Institute
Citation
Rouhana, S., Sundararajan, S., Board, D., Prasad (Retired), P. et al., "Biomechanical Considerations for Assessing Interactions of Children and Small Occupants with Inflatable Seat Belts," SAE Technical Paper 2013-22-0004, 2013, https://doi.org/10.4271/2013-22-0004.Also In
References
- Aduma , S. , Oota , K. , Nagumo , H. , and Okabe , T. 2009 Development of a new airbag system for rear seat occupants Proc. 21 st International Technical Conference on the Enhanced Safety of Vehicles, Paper No. 09-0288 Stuttgart, Germany
- American Academy of Pediatrics Committee on Injury, Violence, and Poison Prevention 2011 Technical report on child passenger safety http://pediatrics.aappublications.org/content/127/4/e1050.full.html#related-urls
- Andersson , M. , Bohman , K. , Osvalder , A.L. 2010 Effect of booster seat design on children's choice of seating positions during naturalistic riding Annals of the Advances of Automotive Medicine 54 171 180
- Arbogast , K.B. , Gholve , P.A. , Friedman , J.E. , Maltese , M.R. , Tomasello , M.F. , and Dormans , J.P. 2007 Normal cervical spine range of motion in children 3-12 years old Spine 32 10 E309 E315
- Athey , J. and Balser , J. 1998 A summary of the work of the SAE ATD Chest Deflection Task Team Proc. 16 th International Technical Conference on the Enhanced Safety of Vehicles, Paper No. 06-S9-W-27 Windsor, Canada
- Augenstein , J. , Digges , K. , Bahouth , G. , Perdeck , E. , Dalmotas , D. , and Stratton , J. 2005 Investigation of the performance of safety systems for protection of the elderly Proc. Association for the Advancement of Automotive Medicine 49 361 370
- Banglmaier , R.F. , Pecoraro , K.M. , Feustel , J.R. , MacFarland , R.W. , Scherer , R.D. , and Rouhana , S.W. 2005 Development and evaluation of a proposed neck shield for the 5 th percentile Hybrid III female dummy Stapp Car Crash Journal 49 509 31
- Billault , P. , Tisseron , C. , Dejeammes , M. , Biard , R. , Cord , P. , and Jenoc , P. 1979 The Inflatable Diagonal Belt (Improvement of protection in the case of frontal impact) Proc. of the Seventh International Technical Conference on Experimental Safety Vehicles Paris, France
- Bir , C. and Viano , D. 1999 Biomechanical predictor of Commotio Cordis in high-speed chest impact J Trauma 47 3 468 473
- Bostrom , O. and Haland , Y. 2003 Benefits of a 3+2 point belt system and an inboard torso side support in frontal, far-side and rollover crashes Proc. 18 th International Technical Conference on the Enhanced Safety of Vehicles, Paper No. 03-0451 Nagoya, Japan
- Bostrom , O. , Haland , Y. , Soderstrom , P. 2005 Seat integrated 3-point belt with reversed geometry and an inboard torso side-support airbag for improved protection in rollover Proc. 19 th International Technical Conference on the Enhanced Safety of Vehicles, Paper No. 05-0204 Washington, DC, USA
- Burkes , J.M. , Cromack , J.R. , and Glenn , T.H. 1975 Human volunteer testing of the inflatable seat belt restraint Proc. Association for the Advancement of Automotive Medicine 19 365 374
- Burkes , J.M. , Cromack , J.R. , and Ziperman , H.H. 1975a Impact Testing of Allied Chemical ‘Inflataband’ with dummies and human volunteers Final Report, DOT HS 801 739 I
- Burkes , J.M. , Cromack , J.R. , and Ziperman , H.H. 1975b Impact testing of Allied Chemical ‘Inflataband’ with dummies and human volunteers Final Report, DOT HS 801 739 II
- Charlton , J. , Koppel , S. , Kopianathan , C. , and Taranto , D. 2010 How do children really behave in restraint systems while traveling in cars? Annals of the Advances of Automotive Medicine 54 181 191
- Coppoletta , J.M. , and Wolbach , S.B. 1933 Body length and organ weights of infants and children Am J Pathology 9 1 55 70
- Cromack , J.R. 1980 Highlights of NHTSA's occupant restraint programs to 1979 Proc. American Association for the Advancement of Automotive Medicine 24 379 395
- Dau , N. 2007 Evaluation of injury criteria for predicting Commotio Cordis American Society of Biomechanics (Poster 4-19) at 2007 ASB Meeting Stanford University
- Digges , K.H. and Morris , J.B. 1991 Opportunities for frontal crash protection at speeds greater than 35 mph SAE Technical Paper Number 910807
- Evans , L. 1986 The effectiveness of safety belts in preventing fatalities Accident Analysis and Prevention 18 229 241
- Evans , L. 2004 Traffic Safety Science Serving Society Bloomfield Hills, MI
- Ferrario , V.F. , Sforza , C. Serrao , G. , Grassi , G. , and Mossi , E. 2002 Active range of motion of the head and cervical spine: A three-dimensional investigation of healthy young adults J. Orthopaedic Research 20 1 122 129
- Fitzpatrick , M.U. 1977 Vehicle integration and evaluation of advanced restraint systems - restraint systems analyses Final Report DOT HS 803 343
- Fitzpatrick , M. and Egbert , T. 1975 Inflatable seat belt development for subcompact car passengers Final Report DOT HS 801 719
- Forman , J.L. , Lopez-Valdes , F.J. , Dennis , N. , Kent , R.W. , Tanji , H. , and Higuchi , K. 2010 An inflatable seat belt system in the rear seat occupant environment: Investigating the feasibility and benefit in frontal impact sled tests with a 50 th percentile male ATD Annals of Advances in Automotive Medicine 54 111 126
- Forman , J.L. , Segui-Gomez , M. , Ash , J.H. , Lopez-Valdes , F.J. 2011 Child posture and shoulder belt fit during extended night-time traveling: An in-transit observational study Annals of the Advances of Automotive Medicine 55 3 14
- Geddes , L.A. and Roeder , R.A. 2005 Evolution of our knowledge of sudden death due to Commotio Cordis Am J of Emerg Med 23 67 75
- GHSA - Governors' Highway Safety Assoc 2012 http://www.ghsa.org/html/stateinfo/laws/childsafety_laws.html June 12 2012
- Hammer , D.R. , McClenathan , R.V. , and Karigiri , S.S. 1999 Performance requirements for an inflatable seatbelt assembly SAE Technical Paper Number 1999-01-3222
- Hardy , W. N. , Foster , C. , Mason , M. , Yang , K. , King , A. , and Tashman , S. 2001 Investigation of head injury mechanism using neutral density technology and high-speed biplanar X-ray Stapp Car Crash Journal 45 337 368
- Horsch , J.D. , Horn , G. and McCleary , J.D. 1991 Investigation of inflatable seat belt restraints Proc. 35 th Stapp Car Crash Conference SAE Technical Paper Number 912905
- Humanetics Innovative Systems 2013 CRABI 12-month-old dummy data sheet http://www.humaneticsatd.com/crash-test-dummies/children/crabi-12-month-old September 2013
- Irwin , A.L. and Mertz , H.J. 1997 Biomechanical basis for the CRABI and Hybrid III child dummies Proc. 41 st Stapp Car Crash Conference SAE Technical Paper 973317
- Jakobsson , L. , Bohman , K. , Stockman , I. , Andersson , M. , and Osvalder , A-L. 2011 Older children's sitting postures when riding in the rear seat Proc. 55 th IRCOBI Conference 137 148
- Janda , D.H. , Viano , D.C. , Andrzejak , D.V. , and Hensinger , R.N. 1992 An analysis of preventive methods for baseball-induced chest impact injuries Clinical J of Sports Medicine 2 172 179
- Janda , D.H. , Bir , C.A. , Viano , D.C. , and Cassatta , S.J. 1998 Blunt chest impacts: Assessing the relative risk of fatal cardiac injury from various baseballs J Trauma 44 2 298 303
- Karigiri , S.S. , McClenathan , R.V. , Kargol , J.A. , and Shanmugavelu , I. 1999 Injury mitigating benefits of an inflatable shoulder belt for seat-integrated application SAE Technical Paper Number 1999-01-0085
- Kahane , Charles J. 2000 Fatality reduction by safety belts for front-seat occupants of cars and light trucks: Updated and Expanded estimates based on 1986-99 FARS data NHTSA Report DOT HS 809 199
- Kahane , Charles J. 2004 Lives saved by the Federal Motor Vehicle Safety Standards and other vehicle safety technologies, 1960-2002 - Passenger cars and light trucks - with a review of 19 FMVSS and their effectiveness in reducing fatalities, injuries and crashes NHTSA Report DOT HS 809 833
- Kang Y.-S. , Moorhouse K. , Bolte IV , J.H. 2011 Measurement of six degrees of freedom head kinematics in impact conditions employing six accelerometers and three angular rate sensors (6aω configuration) Journal of Biomechanical Engineering 133
- Kent , R.W. , Henary , B. , and Matsuoka , F. 2005 On the fatal crash experience of older drivers Proc. Association for the Advancement of Automotive Medicine 49 371 391
- Kent , R.W. , Lopez-Valdes , F.J. , Dennis , N.J. , Lessley , D. , Forman , J. , Higuchi , K. , Tanji , H. , Ato , T. , Kameyoshi , H. , and Arbogast , K. 2011 Assessment of a three-point restraint system with a pre-tensioned lap belt and an inflatable, force-limited shoulder belt Stapp Car Crash Journal 55 141 159
- Kroell , C.K. , Allen , S.D. , Warner , C.Y. , Perl , T.R. 1986 Interrelationship of velocity and chest compression in blunt thoracic impact to Swine II Proc. 30 th Stapp Car Crash Conference SAE Technical Paper 861881
- Kumaresan S. , Yoganandan , N. , and Pintar F.A. 1997 Age-Specific Pediatric Cervical Spine Biomechanical Responses Proc. 41 st Stapp Car Crash Conference 31 61
- Kumaresan S. , Yoganandan , N. , and Pintar F.A. , Maiman , D. , and Kuppa , S. 2000 Biomechanical study of pediatric human cervical spine: A finite element approach J. Biomechanical Engineering - Transactions of ASME 122 60 71
- Link , M.S. 2003 Mechanically induced sudden death in chest wall impact ( Commotio Cordis ) Prog. in Biophysics and Molecular Biology 82 175 186
- Link , M.S. , Bir , C.A. , Dau , N. , Madias , C. , Estes III , N.A.M. , Maron , B.J. 2008 Protecting our children from the consequences of chest blows on the playing field: A time for science over marketing Pediatrics 122 2 873 877
- Link , M.S. , Ginsburg , S.H. , Wang , P.J. , Kirchhoffer , J.B. , Berul , C.I. , Estes III , N.A.M. , and Paris , Y.M. 1998 Commotio Cordis : Cardiovascular manifestations of a rare survivor Chest 114 326 328
- Link , M.S. , Maron , B.J. , VanderBrink , B.A. , Takeuchi , M. , Pandian , N.G. , Wang , P.J. , Estes III , N.A.M. 2001 Impact directly over the cardiac silhouette is necessary to produce ventricular fibrillation in an experimental model of Commotio Cordis J Am Coll Cardiology (JACC) 37 2 649 654
- Link , M.S. , Maron , B.J. , Wang , P.J. , Pandian , N.G. , VanderBrink , B.A. , and Estes III , N.A.M. 2002 Reduced risk of sudden death from chest wall blows ( Commotio Cordis ) with safety baseballs Pediatrics 109 5 873 877
- Link , M.S. , Maron , B.J. , Wang , P.J. et al 2003 Upper and lower limits of vulnerability to sudden arrhythmic death with chest wall impact ( Commotio Cordis ) J Am Coll Cardiology (JACC) 41 1 99 104
- Link , M.S. , Wang , P.J. , Pandian , N.G. et al. 1998a A biological model of Commotio Cordis : Sudden death from low energy chest wall impact J Am Coll Cardiology (JACC)
- Link , M.S. , Wang , P.J. , Pandian , N.G. et al. 1998b Resuscitation in a biological model of Commotio Cordis : Sudden death from low energy chest wall impact J Am Coll Cardiology (JACC)
- Link , M.S. , Wang , P.J. , Pandian , N.G. et al. 1998c Safety baseballs reduce ventricular fibrillation and EKG changes in a biological model of Commotio Cordis : Sudden death from low energy chest wall impact J Am Coll Cardiology (JACC)
- Madias , C. , Maron , B.J. , Alsheik-Ali , A.A. , Estes III , N.A.M. , and Link , M.S. 2007 Commotio Cordis Indian Pacing and Electrophysiology Journal 7 4 235 245
- Maron , B.J. , Estes III , N.A.M. , Link , M.S. 2005 Task Force 11: Commotio Cordis J Am Coll Cardiology (JACC) 45 8 1371 3
- Maron , B.J. , Gohman , T.E. , Kyle , S.B. , Estes III , N.A.M. , Link , M.S. 2002 Evidence against the efficacy of current chest wall protection for sudden death due to precordial blows ( Commotio Cordis ) J Am Coll Cardiology (JACC)
- McCrory , P. 2002 Commotio Cordis Br J Sports Med 36 236 237
- Mertz , H.J. 2002 Anthropomorphic Test Devices Accidental Injury: Biomechanics & Prevention Second Nahum A.M. and Melvin J.W. 72 88 Springer-Verlag New York
- Mertz , H.J. , Irwin , A.L. , and Prasad , P.P. 2003 Biomechanical and scaling bases for frontal and side impact Injury Assessment Reference Values Stapp Car Crash Journal 47 155 188
- Michaelson , J. , Forman , J. , Kent , R.W. , and Kuppa , S. 2008 Rear seat occupant safety: Kinematics and injury of PMHS restrained by a standard 3-point belt in frontal crashes Stapp Car Crash Journal 52 295 325
- Nakhla , S. 2002 Benefits of inflatable seat belts in reducing serious injury to vehicle occupants during crashes Airbag 2002
- Penning , L. 1979 Normal movements of the cervical spine Am. J. Roentgenology 130 317 326
- Pincemaille , Y. , Trosseille , X. , Mack , P. , Tarriere , C. , Breton , F. , and Renault , B. 1989 Some new data related to human tolerance obtained from volunteer boxers Proc. 33 rd Stapp Car Crash Conference SAE Technical Paper 892435
- Pintar , F.A. , Mayer , R. , Yoganandan , N. , and Sun , E. 2000 Child neck strength characteristics using an animal model Stapp Car Crash Journal 44 77 83
- Prasad , P. and Daniel , R.P. 1984 A biomechanical analysis of head, neck and torso injuries to child surrogates due to sudden torso acceleration Proc. 28 th Stapp Car Crash Conference SAE Technical Paper 841656
- Rouhana . S.W. , Bedewi , P.G. , Kankanala , S.V. , Prasad , P. , Zwolinski , J.J. , Meduvsky , A.G. , Rupp , J.D. , Jeffreys , T.A. , Schneider , L.W. 2003 Biomechanics of 4-point seat belt systems in frontal impacts Stapp Car Crash Journal 47 367 399
- Rouhana , S.W. , Kankanala S.V. , Prasad , P. , Rupp , J.D. , Jeffreys , T.A. , Schneider , L.W. 2006 Biomechanics of 4-point seat belt systems in farside impacts Stapp Car Crash Journal 50 267 298
- Rowson , S. and Duma , S.M. 2013 Brain injury prediction: Assessing the combined probability of concussion using linear and rotational head acceleration Annals of Biomedical Engineering 41 5 873 882
- Rutzki (nee Wilke) , E. 1972 Safety Belts United States Patent No. 3,682,498, Granted August 8, 1972
- SAE International 1995 SAE J211-1 Instrumentation for Impact Test - Electronic Instrumentation
- SAE International 2010 SAE J1727 Calculation Guidelines for Impact Testing
- Sander , V. and Unger , T. 2011 Actual restraint systems: Reached their limits!? Proc. 22 nd International Technical Conference on the Enhanced Safety of Vehicles, Paper No. 11-0351 Washington, DC, USA
- Schneider , D. 2001 Communication from BF Goodrich and Autoliv
- Schneider , L.W. , Robbins , D.H. , Pflug , M.A. , and Snyder , R.G. 1983 Development of anthropometrically-based design specifications for an advanced adult anthropomorphic dummy family NHTSA Final Report, DTNH22-80-C-07502
- Sforza , C. , Grassi , G. , Fragnito , N. , Turci , M. , and Ferrario , V.F. 2002 Three-dimensional analysis of active head and cervical spine range of motion: Effect of age in healthy male subjects Clinical Biomechanics 17 8 611 614
- Side Airbag Out-of-Position Injury Technical Working Group 2003 Recommended procedures for evaluating occupant injury risk from deploying side airbags www.IIHS.org
- Stalnaker , R.L. 1993 Inconsistencies in state laws and federal regulations regarding child restraint use in automobiles SAE Technical Paper 933087
- Strother , C.E. and Morgan , R. M. 1974 The efforts of the National Highway Traffic Administration in the development of advanced passive protection systems and child restraint systems SAE Technical Paper Number 740580
- Sundararajan , S. , Rouhana , S.W. , Board , D. , DeSmet , E. , Prasad , P. , Rupp , J.D. , Miller , C.S. , and Schneider , L.W. 2011 Biomechanical assessment of a rear-seat inflatable seatbelt in frontal impacts Stapp Car Crash Journal 55 161 197
- Terry , Sydney L. and Batchelor , Robert B. 1969 Inflatable Cushioning Device United States Patent No. 3,430,979 March 4 1969
- Valani , R. , Mikrogianakis , A. , and Goldman , R.D. 2004 Cardiac concussion ( Commotio Cordis ) Can J Emerg Med 6 6 428 30
- Viano , D.C. , Andrzejak , D.V. , and King , A.I. 1992a Fatal chest injury by baseball impact in children: A brief review Clinical J Sports Medicine 2 161 165
- Viano , D.C. , Andrzejak , D.V. , Polley , T.Z. , and King , A.I. 1992b Mechanism of fatal chest injury by baseball impact: Development of an experimental model Clinical J Sports Medicine 2 166 171
- Viano , D.C. , Bir , C. , Cheney , A.K. , and Janda , D.H. 2000 Prevention of Commotio Cordis in Baseball: An evaluation of chest protectors J Trauma 49 6
- Vrzal , P.D. 1975 Occupant Protection… Back to the Basics SAE Technical Paper Number 750394
- Walsh , M.J. 1976 Sled tests of three-point systems including air belt restraints Final Report DOT HS 801 939
- Weber , K. 2002 Child passenger protection Accidental Injury: Biomechanics and Prevention Nahum A.M. and Melvin J.W. 523 549 Springer-Verlag New York
- Weinstock , J. , Maron , B.J. , Song , C. , Mane , P.P. , Estes III , N.A.M. , and Link , M.S. 2006 Failure of commercially available chest wall protectors to prevent sudden cardiac death induced by chest wall blows in an experimental model of Commotio Cordis Pediatrics 117 4 e1 e7
- Yang , S. , Hagiwara , S. , Engelke , K. , Dhillon , M.S. , Guglielmi , G. , Bendavid , B.A. , Soejima , O. , Nelson , D.L. , and Genant , H.K. 1994 Radiographic absorptiometry for bone mineral measurement of the phalanges: Precision and accuracy study Radiology 192 857 859
- Yoganandan , N. , Stemper , B.D. , Kaufman , B.A. , and Pintar , F.A. 2008 Biomechanics of the pediatric spine Surgery of the Pediatric Spine Kim D.H. , Betz R.R. , Huhn S.L. , and Newton P.O. 11 22 Thieme Medical Publications New York, NY
- Youdas , J.W. , Garrett , T.R. , Suman , V.J. , Bogard , C.L. , Hallman , H.O. , and Carey , J.R. 1992 Normal range of motion of the cervical spine: An initial goniometric study Physical Therapy 72 11 770 780
- Zhang , L. , Yang , K.H. , and King , A.I. 2004 A proposed injury threshold for mild traumatic brain injury J. Biomechanical Engineering - Transactions of the ASME 126 226 236