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The probabilistic analysis of fatigue crack effect based on magnetic flux leakage

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  • M.I.M. Ahmad
  • A. Arifin
  • S. Abdullah
  • W.Z.W. Jusoh
  • S.S.K. Singh

Abstract

In this paper, probabilistic analysis on the fatigue crack effect was investigated by applying the Metal Magnetic Memory (MMM) method, based on Self-Magnetic Leakage Field (SMLF) signals on the surface of metal components. The precision of MMM signals is essential in identifying the validity of the proposed method. The tension-tension fatigue test was conducted using the testing frequency of 10 Hz with 4 kN loaded, and the MMM signals were captured using the MMM instrument. As a result, a linear relationship was observed between the magnetic flux leakage and cyclic loading parameter, presenting the R-squared value at 0.72-0.97. The 2P-Weibull distribution function was used as a probabilistic approach to identify the precision of the data analysis from the predicted, and experimental fatigue lives, thereby showing that all points are placed within the range of a factor of 2. Additionally, the characteristics of PDF, CDF, failure rate and failure probability data analysis were plotted and described. Therefore, a 2P-Weibull probability distribution approach is determined to be an appropriate method to determine the accuracy of data analysis for MMM signals in a fatigue test for metal components.

Suggested Citation

  • M.I.M. Ahmad & A. Arifin & S. Abdullah & W.Z.W. Jusoh & S.S.K. Singh, 2019. "The probabilistic analysis of fatigue crack effect based on magnetic flux leakage," International Journal of Reliability and Safety, Inderscience Enterprises Ltd, vol. 13(1/2), pages 18-30.
  • Handle: RePEc:ids:ijrsaf:v:13:y:2019:i:1/2:p:18-30
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