Laboratory Reconstructions of Real World Frontal Crash Configurations Using the Hybrid III and THOR Dummies and PMHS

2002 ◽  
Author(s):  
Audrey Petitjean ◽  
Matthieu Lebarbe ◽  
Pascal Potier ◽  
Xavier Trosseille ◽  
Jean-Pierre Lassau
Keyword(s):  
Real World ◽  
Frontal Crash ◽  
Hybrid Iii

Crash Test Ratings and Real-World Frontal Crash Outcomes: A CIREN Study

2010 ◽  
Vol 68 (5) ◽  
pp. 1099-1105 ◽  
Author(s):  
Gabriel E. Ryb ◽  
Cynthia Burch ◽  
Timothy Kerns ◽  
Patricia C. Dischinger ◽  
Shiu Ho
Keyword(s):  
Real World ◽  
Crash Test ◽  
Frontal Crash

An Improved Dummy Neck Assembly for Dynamic Rollover Testing

2010 ◽  
Author(s):  
Jacqueline G. Paver ◽  
Justin Caplinger ◽  
Garrett Mattos ◽  
Donald Friedman
Keyword(s):  
Real World ◽  
Muscle Tension ◽  
Human Head ◽  
Matched Pair ◽  
Neck Injuries ◽  
Stiff Neck ◽  
Ongoing Research ◽  
Compliance Testing ◽  
Hybrid Iii ◽  
Rollover Crash

In the U.S., more than 27,000 catastrophic and fatal injuries occur annually in rollover crashes. Due to the incidence and severity of injuries in rollover crashes, a strategy for injury mitigation is dynamic compliance testing with dummy-occupied vehicles and occupant protection requirements, similar to that required for frontal and side impacts. Presently, there are dynamic vehicle rollover test devices like the Controlled Rollover Impact System and the Jordan Rollover System that realistically recreate real-world rollover crash scenarios. However, the Hybrid III dummy, which is considered to be the best available human surrogate for dynamic rollover tests, has a very stiff neck with limited biofidelity in rollover crashes; the Hybrid III neck is much stiffer than the human neck. Catastrophic human head or neck injuries resulting from roof interaction and partial ejection in real-world rollover crashes are poorly replicated by dynamic rollover tests with the non-biofidelic Hybrid III dummy neck. Only with a more biofidelic dummy can effective testing result in injury mitigation in rollover crashes. This study is part of an ongoing research project aimed at mitigating catastrophic human neck injuries in real-world rollover crashes. The goal was to develop a biofidelic neck assembly for the Hybrid III dummy in rollover crash environments. The design goals of this prototype neck included decreased stiffness and a mechanism that represents the unknowable human muscle tension in rollover crash environments. This paper and its companion paper in this conference introduce the new neck design, present results of matched-pair tests that compare the responses of the new neck with the production Hybrid III neck, and propose preliminary rollover injury criteria for this neck. The neck demonstrates repeatability, improved biofidelity, which results in more realistic occupant kinematics, dynamics, injury prediction, and evaluation of various countermeasures.

The Effect of Vertical Acceleration on Emergency Locking Seatbelt Retractors

2000 ◽  
Author(s):  
Steven E. Meyer ◽  
Stephen Forrest ◽  
Joshua Hayden ◽  
Brian Herbst ◽  
Anthony Sances
Keyword(s):  
Real World ◽  
Motor Vehicle ◽  
Vertical Plane ◽  
Vehicle Safety ◽  
Crash Test ◽  
Vertical Acceleration ◽  
Frontal Crash ◽  
Occupant Injury ◽  
Motor Vehicle Safety ◽  
Testing And Evaluation

Abstract Contemporary production seatbelt retractors have been proven very effective in the crash environment for which they have been primarily designed and most adequately tested, that is, in the full frontal crash mode. The National Traffic and Motor Vehicle Safety Act of 1966 outlines specific crash test and occupant injury measure requirements for testing and evaluation of seatbelt systems in production vehicles. Automobile manufacturers routinely test exhaustively in compliance of these requirements with respect to full frontal barrier crashes. However, government requirements are not nearly as complete for alternative accident modes often seen in the real world. Offset, angled, override, underride, and rollover crashes will often require seatbelt retractors to manage acceleration pulses in varying directions, including the vertical plane. Occupant motions during these real world accident modes may also impart loads into the belts and belt hardware (webbing and buckle assemblies) that also may not be immediately apparent in the frontal barrier test mode.

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