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Fatigue Crack Propagation in Metals

Nature volume 211, pages 1077–1078 (1966)Cite this article

Abstract

A PARAMETER often used for correlating the propagation rate of fatigue cracks is the stress intensity factor K. This follows the work of Irwin1, who showed that the elastic stresses at a point near the root of a crack always have the form where r and θ are polar co-ordinates, with the origin at the crack tip, of the point. The expression is only valid if r≪a (the crack half length).

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References

  1. Irwin, G. R., J. App. Mech., 24, 36 (1957).

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  2. Gross, B., and Srawley, J. E., N.A.S.A., Technical Note D-2603 (1965).

  3. Schijve, J., Broek, D., and de Rijk, P., National Aero- and Astronautical Research Institute, Amsterdam, Technical Note M 2092 (1961).

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  4. Bradshaw, F. J., and Wheeler, C. (unpublished work).

  5. Forsyth, P. J. E., and Ryder, D. A., Aircraft Eng., 82, 96 (1960).

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  6. Schijve, J., National Aero- and Astronautical Research Institute, Amsterdam, Technical Report M 2122 (1964).

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  7. Hertzberg, R. W., thesis, Lehigh Univ. (1965).

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Authors and Affiliations

  1. Department of Chemistry, Physics and Metallurgy, Royal Aircraft Establishment, Farnborough, Hampshire

    S. PEARSON

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  1. S. PEARSON
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PEARSON, S. Fatigue Crack Propagation in Metals. Nature 211, 1077–1078 (1966). https://doi.org/10.1038/2111077a0

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