This content is not included in
your SAE MOBILUS subscription, or you are not logged in.
Restitution Modeling for Crush Analysis: Theory and Validation
Technical Paper
2006-01-0908
ISSN: 0148-7191, e-ISSN: 2688-3627
Annotation ability available
Sector:
Language:
English
Abstract
This paper describes, demonstrates and validates a method for incorporating the effects of restitution into crush analysis. The paper first defines the impact coefficient of restitution in a manner consistent with the assumptions of crush analysis. Second, modified equations of crush analysis are presented that incorporate this coefficient of restitution. Next, the paper develops equations that model restitution response on a vehicle-specific basis. These equations utilize physically meaningful empirical constants and thus improve on restitution modeling equations already in the literature of accident reconstruction. Finally, the paper presents analysis of four vehicle-to-vehicle crash tests, demonstrating that the application of the restitution model derived in this paper results in crush analysis yielding more accurate ΔV calculations.
Recommended Content
Authors
Citation
Rose, N., Fenton, S., and Beauchamp, G., "Restitution Modeling for Crush Analysis: Theory and Validation," SAE Technical Paper 2006-01-0908, 2006, https://doi.org/10.4271/2006-01-0908.Also In
References
- Allen, R. Wade et al. “Estimation of Passenger Vehicle Inertial Properties and Their Effect on Stability and Handling,” 2003-01-0966, SAE
- Brach, Raymond M. et al. Vehicle Accident Analysis and Reconstruction Methods SAE, 2005
- Bundorf, R. Thomas “Analysis and Calculation of Delta-V from Crash Test Data,” 960899, SAE
- Carpenter, Nicholas J. et al. “Stiffness and Crush Energy Analysis for Vehicle Collision and its Relationship to Barrier Equivalent Velocity,” 2001-01-0500, SAE
- Emori, Richard I. “Analytical Approach to Automobile Collisions,” 680016, SAE
- MacInnis, Duane D. “A Comparison of Moment of Inertia Estimation Techniques for Vehicle Dynamics Simulation,” 970951, SAE
- Marine, Micky C. et al. “Delta-V Analysis from Crash Test Data for Vehicles with Post-Impact Yaw Motion,” 980219, SAE
- McHenry, Brian G. “The Algorithms of CRASH,” McHenry Software, Inc. August 2001
- McHenry, R.R., et al. “A Revised Damage Analysis Procedure for the CRASH Computer Program,” 861894, SAE
- McHenry, Raymond R. et al. “Effects of Restitution in the Application of Crush Coefficients,” 970960, SAE
- Monson, Kenneth L et al. “Determination and Mechanisms of Motor Vehicle Structural Restitution from Crash Test Data,” 1999-01-0097, SAE
- Neptune, James A. et al. “A Method for Quantifying Vehicle Crush Stiffness Coefficients,” 920607, SAE
- Neptune, James A. et al. “A Method for Obtaining Accident Specific Stiffness Coefficients,” 940913, SAE
- Neptune, James A. “Crush Stiffness Coefficients, Restitution Constants, and a Revision of CRASH3 and SMAC,” 980029, SAE
- Neptune, James A. “A Comparison of Crush Stiffness Characteristics from Partial-Overlap and Full-Overlap Frontal Crash Tests,” 1999-01-0105, SAE
- Nystrom, Gustav et al. “Stiffness Parameters for Vehicle Collision Analysis,” 910119, SAE
- Rose, Nathan A. et al. “An Examination of the CRASH3 Effective Mass Concept,” 2004-01-1181, SAE
- Rose, Nathan A. et al. “Crush and Conservation of Energy Analysis: Toward a Consistent Methodology,” 2005-01-1200, SAE
- Siegmund, Gunter P. et al. “Characteristics of Specific Automobile Bumpers in Low-Velocity Impacts,” 940916, SAE
- Strother, Charles E. et al. “Crush Energy in Accident Reconstruction,” 860371, SAE
- Wirth, Jeffrey L. et al. “An Analysis of a Staged Two-Vehicle Impact,” 2000-01-0464, SAE
- Woolley, Ronald L. et al. “Inaccuracies in the CRASH3 Program,” 850255, SAE