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A Study on the Side Collision Accident Reconstruction Using 3-Dimensional Crash Analysis  

Jang, In-Sik (Department of Mechanolinformatics & Design Engineering, Hongik University)
Kim, Il-Dong (Graduate School, Department of Mechanolinformatics & Design Engineering, Hongik University)
Publication Information
Transactions of the Korean Society of Automotive Engineers / v.16, no.1, 2008 , pp. 52-63 More about this Journal
Abstract
The side collision reconstruction algorithm is developed using three dimensional car crash analysis. Medium size passenger car is modeled for finite element analysis. Total 24 side collision configurations, four different speed and six different angle, are set up for making side collision database. Deformation index and degree index are built up for each collision case. Deformation index is a kind of deformation estimate averaging displacement of side door of crashed car from finite element analysis result. Angle index is constructed measuring deformed angle of crashing car. There are two kinds of angle index, one is measured at driver's side and the other is measured at passenger's side. Also a collision analysis information in side of cars is used for giving a basis for scientific and practical reason in a reconstruction of the car accident. The analysis program, LS-DYNA3D is utilized for finite element analysis program for a collision analysis. Those database are used for side collision reconstruction. Side collision reconstruction algorithm is developed, and applied to find the collision conditions before the accident occurs. Three example collision cases are tried to check the effectiveness of the algorithm. Deformation index and angle index is extracted for the case from the analysis result. Deformation index is compared to the established database, and estimated collision speed and angle are introduced by interpolation function. Angle index is used to select a specific collision condition from the several available conditions. The collision condition found by reconstruction algorithm shows good match with original condition within 10% error for speed and angle. As a result, the calculation from the reconstruction of the situation is reproducing the situation well. The performance in this study can be used in many ways for practical field using deformation index and degree index. Other different collision situations may be set up for extending the scope of this study in the future.
Keywords
Side collision accident reconstruction; Deformation index; Angle index; Crash analysis; Collision configuration;
Citations & Related Records
Times Cited By KSCI : 2  (Citation Analysis)
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1 R. Bergmann, C. Bremer, X. Wang and A. Enblen, "Requirements of Comprehensive Side Protection and Their Effects on Car Development," 15th Int. Tech. Conf. Enhanced Safety of Vehicles, Paper No.96-S6-W-16, 1996
2 D. Yoo, J. Kim, H. Beom and O. Kwon, "A Study of Numerical Analysis for Korea NCAP Side Impact," Spring Conference of Proceedings, KSAE, pp.1527-1523, 2005
3 I. Jang and D. Chae, "Collision Configurations Reconstruction Using Deformation Shape and Deformation Severity of Car Body," Transactions of KSAE, Vol.9, No.1, pp.171-180, 2001
4 I. Jang and S. Lee, "The Relationship between Deformation Shape and Energy for Various Crash Configurations of Two Cars," Transactions of KSAE, Vol.7, No.3, pp.225-233, 1999
5 J. Lim, K. Kim and H. Huh, "Side Impact Analysis of an Auto-body with 60TRIP Steel for Side Members," Transactions of KSAE, Vol.11, No.2, pp.164-171, 2003
6 I. Jang and D. Chae, "The Derivation of Simplified Vehicle Body Stiffness Equation Using Collision Analysis," Transactions of KSAE, Vol.8, No.4, pp.177-184, 2000   과학기술학회마을
7 K. Izumi, A. Okamoto, M. Yoshikawa and H. Ishigure, "Computer Analysis for Side Impact Occupant Protection," 15th Int. Tech. Conf. Enhanced Safety of Vehicles, Paper No. 96-S6-O-8, 1996
8 HYPERMESH Manual, Altair, USA, 2004
9 LS-DYNA 3D Keyword User's Manual, LSTC, USA, 1999
10 T. J. Trella, R. R. Samaha and E. J. Smith, "The Use of Advanced Analytical Techniques in Side Impact Crash-worthiness Research," 15th Int. Tech. Conf. Enhanced Safety of Vehicles, Paper No.96-S6-O-10, 1996
11 NHTSA "Side Impact Protection," Federal Motor Vehicle Safety Standards, 49 CFR Part 571, Docket No.88-06, Notice8, 1994
12 K. Seyer and B. Fildes, "Working towards a Harmonized Dynamic Side Impact Standard and Australian Perspective," 15th Int. Tech. Conf. Enhanced Safety of Vehicles, Paper No. 96-S6-O-5, 1996