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Optimization of Frontal Crashworthiness for the Weight Reduction Design of an Auto-body Member with the Advanced High Strength Steels  

Kim, Kee-Poong (Automotive Components Service Center, Korea Institute of Industrial Technology)
Kim, Se-Ho (School of Automotive, Industrial and Mechanical Engineering, Daegu University)
Publication Information
Transactions of the Korean Society of Automotive Engineers / v.17, no.2, 2009 , pp. 104-111 More about this Journal
Abstract
In this paper, optimization for frontal crashworthiness is carried out for the weight reduction design of an auto-body member with the advanced high strength steels(AHSS) such as 780TRIP and 780DP. The frontal crashworthiness is evaluated in order to optimize thicknesses for the front rail member of the ULSAB-AVC, Thicknesses of the front rail member with AHSS are optimized by comparison of crushing distance, absorbed energy and the deceleration for the auto-body with the response surface methodology. The results demonstrate that the crashworhiness of the front rail member with the optimum thicknesses of the AHSS is similar to analysis results obtained from the ULSAB-AVC project. The results also show that the weight reduction design is performed by substituting the AHSS for conventional structural steels such as 440E in the auto-body members.
Keywords
Frontal crashworthiness; ULSAB-AVC(Ultra Light Steel Auto Body-Advanced Vehicle; Concept); AHSS; Response surface methodology; Weight reduction design;
Citations & Related Records
Times Cited By KSCI : 1  (Citation Analysis)
연도 인용수 순위
1 S.B. Kim, II. Huh, S H. Park and 1.H, Lim, "Dynamic Tensile Characteristics of TRIP-type and DP-type Sheets for an Auto-body," Key Engineering Materials, Vol.340-341, pp.255-262, 2007
2 H.J. Lee, J.H. Song and H. Huh, "Dynamic Tensile Tests of Auto-Body Steel Sheets with the Variation of Temperature," Solid State Phenomena, Vol.116-117, pp.259-262, 2006
3 A. Yoshitake, K. Sato and Y. Hosoya, "A Study on Improving Crashworthiness of Automotive Parts by Using High Strength Steel Sheets," SAE 980382,1998
4 ULSAB-AVC Engineering Report, Porsche Engineering Services, Inc., 2001
5 H, Huh, J.H. Lim, J.H. Song, K.S. Lee, Y.W. Lee and S.S. Han, "Crashworthiness Assessment of Side Impact of an Auto-Body with 60Trip Steel for Side Members," Int. J. Automotive Technology, Vol.4, No.3, pp.149-156, 2003
6 R. H. Myers and D. C. Montgomery, Response Surface Methodology: Process and Product Optimization Using Designed Experiment / 2nd Edn, A Wiley-Interscience Publication, 2002
7 W.J. Kang and H. Huh, "Crash Analysis of Autobody Structures Considering the Strainrate Hardening Effect," Int. J. Automotive Technology, Vol.1, No.1, pp.35-41, 2000