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A simple procedure for the prediction of the fatigue crack growth rate under variable amplitude loading

From National Research Council Canada

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Affiliation
  1. National Research Council of Canada
FormatText, Article
ConferenceFatigue life : analysis and prediction : Proceedings of the Fatigue Program and related papers presented at the International Conference and Exposition on Fatigue, Corrosion Cracking, Fracture Mechanics and Failure Analysis, 2-6 December, 1985, Salt Lake City, Utah, USA
Abstract
The constant amplitude data for Man-Ten and RQC-100 steels were used to predict the variable amplitude data obtained for the SAE round-robin test data. The procedure does not take into account the influence of the order of succession of the peaks and valleys but provides adequate predictions for short loading blocks histories in the long crack region. However, excessively fast growth rates have been observed for the short crack region. This behaviour can be explained with the crack closure concept. The short crack effect was found to be more pronounced for the lowest yield material and for the lowest load ratio loading histories. These two observations are in agreement with the crack closure concept.
Publication date
PublisherAmerican Society for Metals
In
  • International Conference and Exposition on Fatigue, Corrosion Cracking, Fracture Mechanics and Failure Analysis: 275–281.
LanguageEnglish
Peer reviewedYes
NRC numberCNRC 26257
NRC-IGM85-203-249
NPARC number23004861
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Record identifierc251b10d-5f26-40da-b066-f82c48ec4e1f
Record created2019-01-04
Record modified2020-03-17
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