Paper Title:
Experimental Comparison of Fatigue Characterizations between TRIP and DP Steels
  Abstract

Advanced high strength steels are increasingly utilized to realize the lightweight of automotive body for economical and ecological considerations. The fatigue durability of notched components is one of the significant evaluation parameters for reasonable material selection. Strain-controlled fatigue experiments of low-alloy TRIP steel and DP steel with 590MPa grade were performed at room temperature in this study. Experimental results indicate that both fatigue life and cyclic stress amplitude of TRIP steel are superior to those of DP steel at the same strain amplitude. Furthermore, local strain-life models of two steels were determined with linear regression method to predict the fatigue life of notched body structures with finite element method. It can be concluded that TRIP steel can provide more excellent potential than DP steel for the lightweight design of notched automotive structures from the viewpoint of fatigue resistance.

  Info
Periodical
Advanced Materials Research (Volumes 97-101)
Edited by
Zhengyi Jiang and Chunliang Zhang
Pages
671-674
DOI
10.4028/www.scientific.net/AMR.97-101.671
Citation
Z. G. Hu, P. Zhu, J. Meng, X. M. Lai, "Experimental Comparison of Fatigue Characterizations between TRIP and DP Steels", Advanced Materials Research, Vols. 97-101, pp. 671-674, 2010
Online since
March 2010
Export
Price
$32.00
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