Abstract
PEARSON1 has shown that for many materials a small internal fatigue crack of length l, which propagates in a wide sheet of thickness t (under conditions approximating plane strain with the peak tensile stress amplitude σa≪σy, the yield strength), grows at a rate given by where N is the number of stress cycles, E is Young's modulus, and K≃σa(l/2)½ (the stress-intensity factor). It is interesting to consider how this result can be reconciled with the results of fracture mechanics.
This is a preview of subscription content, access via your institution
Access options
Similar content being viewed by others
References
Pearson, S., Nature, 211, 1077 (1966).
McClintock, F. A., Fracture of Solids (edit. by Drucker, D. C., and Gilman, J. J.), 65 (Gordon and Breach, New York, 1963).
McClintock, F. A., and Argon, A. S., Mechanical Behaviour of Materials (Addison-Wesley, 1966).
McClintock, F. A., discussion to ref. 6.
Bateman, D. A., Bradshaw, F. J., and Rooke, D. P., Roy. Aircraft Estab. Tech. Note CPM63 (1964).
Laird, C., Symposium on Fatigue Crack Propagation, Amer. Soc. Test. Mat., Special Technical Publication (in the press).
McEvily, A. J., Boettner, R. C., and Johnston, T. L., Tenth Sagamore Army Materials Research Conference (Syracuse University Press, 1963).
McEvily, A. J., and Johnston, T. L., International Conference on Fracture, Sendai (in the press).
Weertman, J., International Conference on Fracture, Sendai (in the press).
Donaldson, D. R., and Anderson, W. E., Cranfield Symposium on Fatigue Crack Propagation (1962).
Boettner, R. C., and McEvily, A. J., Acta. Met., 11, 725 (1963).
Frost, N. E., and Dugdale, D. S., J. Mech. Phys. Solids, 6, 92 (1958).
Liu, H. W., Trans. Amer. Soc. Mech. Eng., J. Basic Eng., 83 D, 23 (1961).
Author information
Authors and Affiliations
Rights and permissions
About this article
Cite this article
HAM, R. Fatigue Crack Propagation in Metals. Nature 212, 1568–1569 (1966). https://doi.org/10.1038/2121568a0
Received:
Published:
Issue Date:
DOI: https://doi.org/10.1038/2121568a0
This article is cited by
-
The growth of fatigue cracks in aluminium
International Journal of Fracture Mechanics (1971)
-
A fractographic study of fatigue failure in two high strength steels
Czechoslovak Journal of Physics (1969)
Comments
By submitting a comment you agree to abide by our Terms and Community Guidelines. If you find something abusive or that does not comply with our terms or guidelines please flag it as inappropriate.