Browse > Article

Side Impact Analysis of an Auto-body with 60TRIP Steel for Side Members  

Lim, Ji-Ho (Department of Mechanical Engineering, Korea Advanced Institute of Science and Technology)
Kim, Kee-Poong (Department of Mechanical Engineering, Korea Advanced Institute of Science and Technology)
Huh, Hoon (Department of Mechanical Engineering, Korea Advanced Institute of Science and Technology)
Publication Information
Transactions of the Korean Society of Automotive Engineers / v.11, no.2, 2003 , pp. 164-171 More about this Journal
Abstract
The side impact behavior has been investigated when the high strength steel 60TRIP(Transformation Induced Plasticity) is replaced for the conventional low-carbon steel for weight reduction of an auto-body. The side impact analysis was carried out as specified in US-SINCAP with the center pillar and the side sill of the conventional steel or 60TRIP. For accurate impact analyses, the dynamic material properties are adopted with the Johnson-Cook model. The analysis results demonstrate that the penetration of the side members is remarkably reduced when 60TRIP is employed for the center pillar and the side sill replacing the conventional steel. The crashworthiness in the side impact is considerably improved with less penetration of the side members and less acceleration of the opposite floor.
Keywords
Side impact analysis; TRIP steel; Johnson-Cook model; Crashwrothiness;
Citations & Related Records
연도 인용수 순위
  • Reference
1 W. J. Kang, S. S. Cho, H. Huh, D. T. Chung, 'Modified Johnson-Cook Model for Vehicle Design,' Int. J. Vehicle Design, Vol.21, Nos.4/5, pp.424-435, 1999   DOI
2 NHTSA, Federal Motor Vehicle Safety Standard (FMVSS) 214, Side Impact Protection, 1990
3 G. R. Johnson, W. H. Cook, 'A Constitutive Model and Data for Metals subjected to Large Strains, High Strain Rates and High Temperatures,' Proc. of 7th Int. Symposium on Ballistics, pp.115-120, 1983
4 H. Huh, W. J. Kang, 'Crash-worthiness assessment of Thin-walled Structures with the Highstrength Steel Sheet,' lnt. J. Vehicle Design, Vol.30, Nos.1/2, pp.1-21, 2002   DOI   ScienceOn
5 H. Huh, W. J. Kang, S. S. Han, 'A Tension Split Hopkinson Bar for Investigating the Dynamic Behavior of Sheet Metals,' Experimental Mechanics, Vol.42, No.1, pp.8-17, 2002   DOI   ScienceOn
6 LSTC, LS-DYNA Keyword User's Manual, 1999