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ACCELERATION PULSES AND CRASH SEVERITY IN LOW VELOCITY REAR IMPACTS – REAL WORLD DATA AND BARRIER TESTS
Published June 04, 2001 by National Highway Traffic Safety Administration in United States
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Dummy responses in a crash test can vary depending not only on the change of velocity but also on how the impact was generated. Literature reporting how acceleration pulses can vary in cars impacted in different configurations is limited. The aim of this study was to collect and categorise different acceleration pulses in 3 different types of rear collision. The acceleration pulse resulting from a solid, 1000 kg, mobile barrier test at 40% overlap and an impact velocity of 15 km/h was studied for 33 different cars. Seven cars were impacted at 100% overlap at higher impact velocities using the same mobile barrier. Acceleration pulses from two different car types in real-world collisions producing a similar change of velocity were also analysed.
The results from the barrier tests show that a similar change of velocity can be generated by a large variety of pulse shapes in low velocity rear impacts. The results from real-world collisions showed that a similar change of velocity was generated in different ways both in terms of peak and mean acceleration. The results of this study highlight the importance of knowing the acceleration pulse both when evaluating the severity of a real world crash and when designing test methods for evaluating vehicle safety performance in low velocity rear-end impacts, particularly in respect of soft tissue neck injuries.
CitationLinder, A., Avery, M., Krafft, M., Kullgren, A. et al., "ACCELERATION PULSES AND CRASH SEVERITY IN LOW VELOCITY REAR IMPACTS – REAL WORLD DATA AND BARRIER TESTS," SAE Technical Paper 2001-06-0253, 2001.
- AAAM 1990 The Abbreviated Injury Scale – 1990 Revision American Association for Automotive Medicine Des Plaines IL
- Hell, W. Langeweider, K. Waltz, F. 1998 Reported soft tissue injuries after rear-end collisions Proc. IRCOBI International Conference on the Biomechanics of Impacts Göteborg, Sweden 261 274
- Jakobsson L. Lundell B. Norin H. Isaksson-Hellman I. 2000 WHIPS – Volvo’s Whiplash Protection Study Traffic Safety and Auto Engineering Stream, Accident Analysis and Prevention 32 No. 2 307 319
- Krafft, M. 1998 Non-fatal injuries to car occupants – Injury assessment and analysis of impact causing short- and long-term consequences with special reference to neck injuries Ph.D. Thesis Karolinska Institute Stockholm
- Krafft M. Kullgren A. Ydenius, A. Tingvall C. 2001 Risk of AIS 1 Neck Injury in Rear-End Impacts Results From Real-Life Impacts with Recorded Crash Pulses, (In preparation for the ESV conference 2001)
- Kullgren, A. Lie, A. Tingvall, C. 1995 Crash Pulse Recorder (CPR) Validation in Full Scale Crash Tests Accident Analysis and Prevention 27 No 5 717 727
- Kullgren, A. Thomson, R. Krafft, M. 1999 The effect of crash pulse shape on AIS1 neck injuries in frontal impacts Proc. of the IRCOBI Conference Sitges, Spain 231 242
- Langweider K. Hell W. Schick, S. Muser M. Walz, F. Zellmer, H. 2000 Evaluation of Dynamic Seat Test Standard Proposal for a Better Protection after Rear-End Impact Proc. of the IRCOBI Conference Montpellier, France
- Muser M. Walz. F.H. Zellmer, H. 2000 Biomechanical Significance of the Rebound Phase in Low Speed Rear End Impacts Proc. of the IRCOBI Conference Montpellier, France
- Ono, K. Inami, S. Kaneoka, K. Gotou, T. Kisanuki, Y Sakuma, S Miki, K. 1999 Relationship between Localized Spine Deformation and Cervical Vertebral Motions for Low Speed Rear Impacts Using Human Volunteers Proc. Of the IRCOBI Conference Sitges, Spain 149 164
- Parkin S. Mackay G.M. Hassan A.M. Graham R. 1995 Rear End Collisions And Seat Performance- To Yield Or Not To Yield Proc. Of the 39 th AAAM Conference Chicago, Illinois 231 244
- Thomson, R.W. Romilly, D.P. Narvin, F.D.P. 1995 Dynamic Requirements of Automotive Seatbacks SAE Paper No. 930649 . Society of Automotive Engineers, Warrendale, PA
- Zuby, D.S. Troy Vann, D. Lund, A.K. Morris, C.R. 1999 Crash Test Evaluation of Whiplash Injury Risk Proc. of the 43 rd STAPP Car Crash Conference San Diego, USA 267 278