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Bumper Stay Design for RCAR Front Low Speed Impact Test
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 Title & Authors
Bumper Stay Design for RCAR Front Low Speed Impact Test
Kang, Sungjong;
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 Abstract
RCAR low speed impact test estimates repair cost of the impacted vehicle. In this study, for a mid-size vehicle front body model, structural performance for RCAR low speed impact were analyzed with changing the bumper stay shape and size. First, for improving the impact load transfer mechanism to side member the stay rear section shape at connecting area with side member was modified and the stay outer was redesigned to be normal to the barrier. Next, the investigation on stay thickness effect was carried out and the performances of several models with different forming shape were compared. The final design showed 13mm decrease in the maximum barrier intrusion distance and greatly reduced side member deformation. Additional analyses explained the validity of the final design.
 Keywords
RCAR;Maximum barrier intrusion distance;Side member deformation;Bumper stay;Front body model;Impact load transfer mechanism;Stay forming;
 Language
Korean
 Cited by
 References
1.
Research Council for Automotive Repairs, Rcar Low Speed Structural Crash Test, Issue 2.2, 2008.

2.
C. Y. Yoon, J. H. Yim and R. K. Gwak, "Improvement CAE Study for RCAR in Compact Passenger Car," KSAE Annual Conference Proceedings, pp.2583-2586, 2010.

3.
J. T. Kwon, J. S. Park and N. S. Kwon, "Study of Front Bumper System Design for RCAR Low Speed Crash," KSAE Spring Conference Proceedings, pp.1821-1825, 2011.

4.
Y. B. Chun and C. W. Lee, "Case Study on Bumper Stay for Damageability and Repairability Improvement," Transactions of KSAE, Vol.13, No.2, pp.157-161, 2005.

5.
S. J. Kang, "Design of Bumper Backbeam Center Reinforcement Bracket for IIHS Full Overlap Bumper Test," Transactions of KSAE, Vol.23, No.1, pp.105-111, 2015.

6.
LS-DYNA User's Manual, Nonlinear Dynamic Analysis of Structures, Version 971, LSTC, 2006.

7.
H. S. Kim, I. H. Choi and J. H. Kim, "A Development of RCAR Performance with High Efficient C/BOX," KSAE Annual Conference Proceedings, pp.2475-2482, 2010.

8.
S. H. Kim, J. S. Yoo and H. J. Yim, "Design of the Crash Box to Improve Damageability from Low Speed Rear Impact," KSAE Annual Conference Proceedings, pp.1972-1977, 2012.