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Calculating Vehicle Side Structure Stiffness from Crash Test Data: Effects of Impactor Characteristics
Technical Paper
2020-01-0640
ISSN: 0148-7191, e-ISSN: 2688-3627
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Abstract
This research examines the effects of impactor characteristics on the calculated structural stiffness parameters A and B for the struck sides of late-model vehicles. This study was made possible by crash testing performed by the National Highway Traffic Safety Administration involving side impacts of the same vehicle line with both a rigid pole and with a moving deformable barrier. Twenty-nine crash test pairs were identified for 2018 model-year vehicles. Of 60 total tests, 49 were analyzed. Test data for 19 vehicles impacted in both modes resulted in A and B values considered to be valid.
Classifying these 19 vehicles according to the categories defined by Siddall and Day, only Class 2 multipurpose vehicles were represented by enough vehicles (10) to search for trends within a given vehicle category.
For these vehicles, more scatter in the results was observed in both A and B values for the MDB impacts compared to the pole impacts. A causal relationship between stiffness values in the two test modes was not discovered. In either test mode, there was little correlation between either A or B with vehicle wheelbase.
These studies confirm previous findings; namely, that the side structure stiffness parameters vary widely, even within a given class, and that they cannot be predicted based on other vehicle characteristics or other test modes.
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Citation
Struble, D. and Struble, J., "Calculating Vehicle Side Structure Stiffness from Crash Test Data: Effects of Impactor Characteristics," SAE Technical Paper 2020-01-0640, 2020, https://doi.org/10.4271/2020-01-0640.Data Sets - Support Documents
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References
- Campbell , K. Energy Basis for Collision Severity SAE Technical Paper 740565 1974 https://doi.org/10.4271/740565
- 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
- Struble , D. and Struble , J. Automotive Accident Reconstruction: Practices and Principles 2nd Boca Raton CRC Press 2020 978-0-367-41583-9
- McHenry , R. January 1976
- Noga , T. and Oppenheim , T. 1981
- Sharma , D. , Stern , S. , Brophy , J. , and Choi , E.-H. An Overview of NHTSA’s Crash Reconstruction Software WinSMASH Proceedings of the 20th International Technical Conference on the Enhanced Safety of Vehicles (ESV) 2007
- Siddall , D. and Day , T. Updating the Vehicle Class Categories SAE Technical Paper 960697 1996 https://doi.org/10.4271/960697
- Osterholt , G. , Cummings , J. , Biller , B. , and Calhoun , V. Updating Generic Crush Stiffness Coefficients for Accident Reconstruction SAE Technical Paper 2010-01-1581 2010 https://doi.org/10.4271/2010-01-1581
- Lee , E. , Lee , P. , Erickson , M. , and Hayes , W. Increase in Vehicle Front, Rear and Side Stiffness Coefficients in the Past Twenty Years Necessitates New Representative Database SAE Technical Paper 2014-01-0351 2014 https://doi.org/10.4271/2014-01-0351
- Kahane , C. 1999
- Hershman , L. The U.S. New Car Assessment Program (NCAP): Past, Present and Future Proceedings, Seventeenth International Technical Conference on the Enhanced Safety of Vehicles (ESV) 1998
- Strother , C. , Kent , R. , and Warner , C. Estimating Vehicle Deformation Energy for Vehicles Struck in the Side SAE Technical Paper 980215 1998 https://doi.org/10.4271/980215
- Davis , S. and Ragland , C. Development of a Deformable Side Impact Moving Barrier Proceedings, Eighth International Conference on Experimental Safety Vehicles October 1980
- Hackney , J. , Monk , M. , Holliwell , W. , Sullivan , L. , and Willke , D. Results of the National Highway Traffic Safety Administration's Thoracic Side Impact Protection Research Program SAE Technical Paper 840886 1984 https://doi.org/10.4271/840886
- Neptune Engineering 1994
- Prasad , A. Energy Absorbed by Vehicle Structures in Side-Impacts SAE Technical Paper 910599 1991 https://doi.org/10.4271/910599
- Neptune , J. and Flynn , J. A Method for Determining Crush Stiffness Coefficients from Offset Frontal and Side Crash Tests SAE Technical Paper 980024 1998 https://doi.org/10.4271/980024
- Trella , T. , Samaha , R. , Fleck , J. , and Strassburg , G. Moving Deformable Barrier with Dynamic Force and Deflection Measurement Capabilities for Full Scale Tests SAE Technical Paper 2000-01-0637 2000 https://doi.org/10.4271/2000-01-0637
- Struble , D. , Welsh , K. , and Struble , J. Side Impact Structural Characterization from FMVSS 214D Test Data SAE Technical Paper 2001-01-0122 2001 https://doi.org/10.4271/2001-01-0122
- U.S. Department of Transportation August 30, 2007
- Struble , J. and Struble , D. Crush Energy and Stiffness in Side Impacts SAE Technical Paper 2017-01-1415 2017 https://doi.org/10.4271/2017-01-1415
- El-Habash , N. 1990
- Willke , D. and Monk , M. 1987
- Tumbas , N. and Smith , R. Measurement Protocol for Quantifying Vehicle Damage from an Energy Point of View SAE Technical Paper 880072 1988 https://doi.org/10.4271/880072
- US Department of Transportation 2012
- Skiera , J. , Crosby , C. , Bare , C. , Paradiso , M. et al. Passenger Vehicle Dynamic Response and Characterization of Side Structure during Low- to Moderate-Speed Side Impacts SAE Int. J. Advances & Curr. Prac. in Mobility 1 3 918 950 2019 https://doi.org/10.4271/2019-01-0420
- Marine , M.C. , Wirth , J.L. , and Thomas , T.M. Crush Energy Considerations in Override/Underride Impacts SAE Technical Paper 2002-01-0556 2002 https://doi.org/10.4271/2002-01-0556
- Hansen , V. , and Dutton , E. 2018
- Ramos , R. , and Matsusaka , S. 2018
- Anderson , G.C.