Paper Title:
A Study on the Effect of Overload Ratio on Fatigue Crack Growth
  Abstract

A growing fatigue crack is known to be retarded on application of an overload cycle. The retardation may be characterized by the total number of cycles involved during retardation and the retarded crack length. The overload ratio plays an important role to influence the retardation behavior. The objective of the present investigation is to study the effect of different overload ratio on the retardation behavior. For ESET (eccentrically-loaded single edge crack tension) specimens, fatigue crack growth tests were conducted under cyclic constant-amplitude loading including a single tensile overloading with different overload ratios. The proposed crack retardation model predicted crack growth retardation due to a single tensile overloading. The predicted results were compared with the experimental ones to confirm the reliability of this model.

  Info
Periodical
Key Engineering Materials (Volumes 261-263)
Edited by
Kikuo Kishimoto, Masanori Kikuchi, Tetsuo Shoji and Masumi Saka
Pages
1159-1168
DOI
10.4028/www.scientific.net/KEM.261-263.1159
Citation
K. S. Kim, S. C. Kim, C. S. Shim, J.Y. Park, "A Study on the Effect of Overload Ratio on Fatigue Crack Growth", Key Engineering Materials, Vols. 261-263, pp. 1159-1168, 2004
Online since
April 2004
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Price
$32.00
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