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Crush Energy in Accident Reconstruction
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English
Abstract
Vehicle accident reconstruction methods based on deformation energy are argued to be an increasingly valuable tool to the accident reconstructionist, provided reliable data, reasonable analysis techniques, and sound engineering judgement accompany their use. The evolution of the CRASH model of vehicle structural response and its corresponding stiffness coefficients are reviewed. It is concluded that the deformation energy for an accident vehicle can be estimated using the CRASH model provided that test data specific to the accident vehicle is utilized. Published stiffness coefficients for vehicle size categories are generally not appropriate. For the purpose of estimating vehicle deformation energy, a straight-forward methodology is presented which consists of applying the results of staged crash tests. The process of translating crush profiles to estimates of vehicle deformation energies and velocities is also discussed. This study is considered a first step in an effort to more completely understand and model the energy absorption processes of vehicle structures in real world crashes.
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Citation
Strother, C., Woolley, R., James, M., and Warner, C., "Crush Energy in Accident Reconstruction," SAE Technical Paper 860371, 1986, https://doi.org/10.4271/860371.Also In
References
- NHTSA CRASH TEST FILE TAPES Available through the NHTSA Office of Vehicle Grashworthiness Research (NRD 12) Department of Transportation NASSIF Building 7th and D SW Washington D.C. 20590
- McHenry, R. “Users Manual for the CRASH Computer Program” CALSPAN Report ZQ-5708-V-3 January 1976
- Woolley, R. Warner, C. Tagg, M. “Inaccuracies in the CRASH3 Program” SAE 850255 February 1985
- Emori, R. “Analytical Approach to Automobile Collisions” SAE 680016 January 1968
- Campbell, K. “Energy as a Basis for Accident Severity ő A Preliminary Study.” The University of Wisconsin PhD Thesis Engineering - Automotive June 1972
- Mason, R. Whitcomb, D. “The Estimation of Accident Impact Speed” Cornell Aeronautical Laboratory Inc. August 1972
- Campbell, K. “Energy Basis for Collision Severity” SAE 740565 1974
- NHTSA “CRASH3 User's Guide and Technical Manual” U.S. Department of Transportation, National Highway Traffic Safety Administration National Center for Statistics and Analysis. Accident Investigation Division Washington D.C. 20590
- Soloman, P. “The Simulation Model of Automobile Collisions (SMAC) Operations Manual” Accident Investigations Division, NHTSA Washington D.C. October 1974
- Monk, M. Guenther, D. “Update of CRASH2 Computer Model Damage Tables, Vol. I” Vehicle Research and Test Center, National Highway Traffic Safety Administration P.O. Box. 37 East Liberty, OH 43311 U.S. Department of Transportation March 1983
- McHenry, R “Yielding Barrier Test Data Base-Refinement of Damage Data Tables in the CRASH Program.” Calspan Corporation Report No. ZR-5954-V-1 February 1977
- Nash, C Oral Comments before the 1985 Volvo Workshop on Frontal Crash Reconstruction Washington D.C. October 1985
- Vazzi, M. “Final Report of FMVSS 212 Standards Enforcement Testing of Windshield Mounting - Passenger Cars- 30 mph, 1980 Chevrolet Citation 4-door Sedan - NHTSA 800104” DySci Report No. 212-DYS-79-017 January 1980
- Ryder, M. “Classification of Automobile Frontal Stiffness/Crashworthiness by Impact Testing” Calspan Corporation Final Report under NHTSA Contract No. DOT-HS-5-01099 August 1976
- Woolley, R. Strother, C. Smith, G. Moulton, J. Allsop, D. “Graphical Solution of Reconstruction Equations” 27th Annual Proceedings American Association for Automotive Medicine October 1983
- Barclay, B. “Steering-Control Rearward Displacement- Passenger Cars - FMVSS 204 1976 Honda Civic CVCC - Two Door Sedan. NHTSA 76507” Agbabian Associates Report No. 204-AA-76-007-TR-4127 March 1976
- Lewis, J. “Fuel Tanks, Fuel Tank filler Pipes and Fuel Tank Connections Standard Enforcement Testing - FMVSS 301 1975 Honda Civic CVCC Hatchback NHTSA 75526” General Environments Corporation Report No. 301-GEC-76-002-A5150.83 September 1975
- Carlson, L. “Part 581-Bumper Standard Chevrolet Citation NHTSA No. 800125” Mobility Systems Report No. 581-MS-80-10-TR-10 June 1980
- Warner, C. et al “The Use of a Multiple Crash Technique for Determining Frontal Crush Characteristics” SAE paper to be presented at the Winter Annual SAE Meeting Detroit February 1985
- Levan, W. Alianello, D, “New Car Assessment and Standards Enforcement Indicant Testing FMVSS Nos. 212, 219 and 301-75 (80 Citation 35 mph Frontal Barrier Test)” Calspan Report No, 6525-V-3 June 1979
- Levan, W. Alianello, D. “New Car Assessment and Standards Enforcement Indicant Testing FMVSS Nos. 212, 219 and 301-75 (80 Citation 40 raph Front Barrier Test)” Calspan Report No. 6525-V-l June 1979
- Levan, W. Alianello, D. “New Car Assessment and Standards Enforcement Indicant Testing FMVSS Nos. 212, 219 and 301-75 (80 Citation 48 mph Frontal Barrier Test)” Calspan Report No. 6525-V-2 June 1979
- Woolley, R. “The IMPAC Computer Program for Accident Reconstruction” SAE 850254 February 1985
- Ishikawa, H. “Computer Simulation of Automobile Collision-Reconstruction of Accidents” Proceedings of the 29th Stapp Car Crash Conference SAE 851729 October 1985
- Bowker, A. Lieberman, G. Engineering Statistics , Prentice - Hall, Inc. 1959