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Lateral Structural Deformation in Frontal Impacts
Technical Paper
2006-01-1395
ISSN: 0148-7191, e-ISSN: 2688-3627
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English
Abstract
In frontal crashes, lateral deformations can occur as a result of various mechanisms. Unfortunately, the crush energy associated with such deformations cannot be assessed as long as the structural properties are unknown. That has been the situation to date, due to the lack of appropriate crash test data.
The present research attempts to address this deficit. A passenger car was crash-tested in a mode designed to induce lateral deformations that are significant compared to longitudinal crush. This was done via a series of three repeated impacts on the same vehicle so as to obtain, in a cost-effective manner, structural characterization data at increasing crash severities. Various cause-and-effect relationships (structural characterization models) were considered with an eye to selecting the one that best predicts the crush energy. Insights obtained from analyzing the behavior of the front structure are presented. The derived structural model is presented, along with recommendations regarding its use.
Structurally, the test vehicle initially loads primarily in compression, until lateral forces induce significant bends in the load-bearing structures, causing them to deform under more-or-less constant force.
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Authors
Citation
Welsh, K., Struble, D., and Struble, J., "Lateral Structural Deformation in Frontal Impacts," SAE Technical Paper 2006-01-1395, 2006, https://doi.org/10.4271/2006-01-1395.Also In
SAE 2006 Transactions Journal of Passenger Cars: Mechanical Systems
Number: V115-6; Published: 2007-03-30
Number: V115-6; Published: 2007-03-30
References
- [MDB 2003] Market Data Book Automotive News Crain Communications, Inc. Detroit 2003
- Campbell, KL “Energy Basis for Collision Severity” SAE International, Paper No. 740565 1974
- Day, T Hargens, R “Differences between EDCRASH and CRASH3” SAE International, Paper No. 850253 1985
- Emori, RI “Analytical Approach to Automobile Collisions” SAE International, Paper No. 680016 1968
- Fonda, AG “CRASH Extended for Desk and Handheld Computers” SAE International, Paper No. 870044 1987
- Hoff, NJ The Analysis of Structures John Wiley & Sons, Inc. 1956
- McHenry, R User’s Manual for the CRASH Computer Program Calspan 1976
- Prasad, AK “Energy Absorbed by Vehicle Structures in Side-Impacts” SAE International, Paper No. 910599 1991
- Smith, RA Noga, JT “Accuracy and Sensitivity of Crash” SAE International, Paper No. 821169 1982
- Smith, GC James, MB Perl, TR Struble, DE “Frontal Crash Energy and Impulse Analysis of Narrow Object Impacts” American Society of Mechanical Engineers, Winter Annual Meeting 1987
- Strother, CE Woolley, RL James, MB Warner, CY “Crush Energy in Accident Reconstruction” SAE International, Paper No. 860371 1986
- Strother, CE Woolley, RL Transport Research Center Ohio 1990
- Strother, CE Kent, RW Warner, CY “Estimating Vehicle Deformation Energy for Vehicles Struck in the Side” SAE International, Paper No. 980215 1998
- Struble, DE “Generalizing CRASH3 for Reconstructing Specific Accidents” SAE International, Paper No. 870041 1987
- Struble, DE Welsh, KJ Struble, JD “Side Impact Structural Characterization from FMVSS 214D Test Data” SAE International, Paper No. 2001-01-0122 2001
- Warner, CY Allsop, DL Germane, GJ “A Repeated-Crash Test Technique for Assessment of Structural Impact Behavior” SAE International, Paper No. 860208 1986
- Welsh, KJ Struble, DE “Crush Energy and Structural Characterization” SAE International, Paper No. 1999-01-0099 1999
- Willke, DT Monk, MW “Crash III Model Improvements: Derivation of New Side Stiffness Parameters from Crash Tests, Volume 2” Department of Transportation DOT HS 807 353 1987