Experimental Study on Theory of Critical Distance Applied to the Prediction of Fatigue from Notches


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Fatigue failure of metal components containing notches, cracks and other defects has been a very active research topic for well over seven decades because of its important practical and theoretical implications. Recently, Taylor and his colleagues have re-visited this topic and proposed the Theory of Critical Distance (TCD), which summarizes the early work by Neuber, Peterson and others in a unifying theory and predicts fatigue fracture with the use of a critical distance, L0. In this paper, an experimental and numerical study of the fatigue of notched and unnotched 6061 aluminium alloys is used to verify the TCD and some of the limitations of the TCD are discussed on this basis.



Edited by:

George Ferguson, Ashvin Thambyah, Michael A Hodgson and Kelly Wade






R. E. Clegg et al., "Experimental Study on Theory of Critical Distance Applied to the Prediction of Fatigue from Notches", Advanced Materials Research, Vol. 275, pp. 27-30, 2011

Online since:

July 2011




[1] Y-L. Lee, J. Pan, R.B. Hathaway and M.E. Barkey: Fatigue Testing and Analysis: Theory and Practice (Elsevier, Amsterdam 2005).

[2] M. Hadj Meliani, Z. Azari, G. Pluvinage and J. Capelle: Eng. Fail. Anal. Vol. 17, (5), (2010), p.1117.

[3] M. Cerit, O. Kokumer, K. Genel: Eng. Fail. Anal. Vol. 17, (2), (2010), p.571.

[4] G. Crupi, V. Crupi, E. Guglielmino, D. Taylor: Eng. Fail. Anal. Vol. 12, (1), (2005), p.129.

[5] D. Taylor: Eng. Fail. Anal. Vol. 12, (6), (2005), p.906.

[6] D. Taylor: The Theory of Critical Distances (Elsevier, Amsterdam 2007).

[7] D.B. Lanning, T. Nicholas, G.K. Haritos: Int.J. Fat. Vol 27 (1), (2005), p.45.

[8] ASTM E647-08e Standard Test Method for Measurement of Fatigue Crack Growth Rates.

[9] Comsol Multiphysics 3. 4, (2008), www. comsol. com.

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