Paper Title:
Effect of Specimen Configuration and Loading Types on Fatigue Life of an Annealed 0.42% Carbon Steels
  Abstract

In the present study, a unified crack growth law based on the small fatigue crack growth law was investigated using specimens with different configurations and loading types for the annealed 0.42% carbon steel. Then, a convenient prediction method of fatigue life was proposed. This small fatigue crack growth rate was uniquely determined by the modified small crack growth law, , despite of changing for specimen configurations and loading types. The constants of can be estimated by an empirical equation of without stress/strain gradient. Considered the effect of stress gradient for different specimen configurations and loading types, the stresses under bending loadings and specimen configurations was calculated from that under push-pull loading. Therefore, the fatigue life of the specimens with different configuration and under different loading types can be simply estimated through the fatigue crack growth law based on the only tensile strength of carbon steels. The availability of proposed method was confirmed experimentally by the results of several carbon steels.

  Info
Periodical
Key Engineering Materials (Volumes 417-418)
Edited by
M.H Aliabadi, S. Abela, S. Baragetti, M. Guagliano and Han-Seung Lee
Pages
121-124
DOI
10.4028/www.scientific.net/KEM.417-418.121
Citation
X. S. Wang, N. Kawagoishi, "Effect of Specimen Configuration and Loading Types on Fatigue Life of an Annealed 0.42% Carbon Steels", Key Engineering Materials, Vols. 417-418, pp. 121-124, 2010
Online since
October 2009
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Price
$32.00
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