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Experimental Mechanics

, Volume 33, Issue 3, pp 242–248 | Cite as

Range-pair-counting fatigue gage

  • Y. Nagase
  • Y. Sawaki
  • H. Yoshida
Article

Abstract

In this paper, the surface roughening phenomenon of an aluminum foil during fatigue process is utilized for monitoring of a variable amplitude stress. It is found that constant mean stress does not affect surface roughness. When the mean stress varies, however, it causes surface roughening. In such a case, the equivalent stress defined by (Σσ i α N i N i )1/α dominates surface roughness of an aluminum foil, where σ i andN i are stress amplitude and the number of cycles counted by the rangepair method, respectively, and α is a gage factor which is peculiar to the foil used. It is concluded that the aluminum foil can be used as the range-pair counting fatigue gage with high accuracy.

Keywords

Aluminum Fatigue Surface Roughness Mechanical Engineer Fluid Dynamics 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

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References

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Copyright information

© Society for Experimental Mechanics, Inc. 1993

Authors and Affiliations

  • Y. Nagase
    • 1
  • Y. Sawaki
    • 1
  • H. Yoshida
    • 1
  1. 1.Shizuoka UniversityHamamatsuJapan

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