Paper Title:
Mixed-Mode Fatigue Crack Growth in Orthotropic Steel Decks
  Abstract

The strain energy density factor approach under mixed-mode condition is used for the prediction of crack propagation in the orthotropic steel deck specimen, which is similar to that of existing suspension bridges. Stress intensity factor approach is used to compare with strain energy density factor approach for the fatigue crack growth analysis. The stress intensity factors are computed by numerical extrapolation using cracked models for the different crack length. The study shows that the fatigue crack propagation under mixed-mode condition is slower than that under mode I only. Parametric studies on the initial crack length, critical crack length and parameters related to crack growth equations are performed to show the influence of these parameters on the fatigue life.

  Info
Periodical
Key Engineering Materials (Volumes 321-323)
Edited by
Seung-Seok Lee, Joon Hyun Lee, Ik Keun Park, Sung-Jin Song, Man Yong Choi
Pages
733-738
DOI
10.4028/www.scientific.net/KEM.321-323.733
Citation
D. H. Choi, H. Y. Choi, S. H. Chung, H. Yoo, "Mixed-Mode Fatigue Crack Growth in Orthotropic Steel Decks", Key Engineering Materials, Vols. 321-323, pp. 733-738, 2006
Online since
October 2006
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Price
$32.00
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