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Rate of growth of fatigue cracks calculated from the theory of infinitesimal dislocations distributed on a plane

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Abstract

The Bilby,, Cottrell and Swinden crack theory is applied to the problem of the growth of fatigue cracks. It is found that if a total critical displacement is adopted as the fracture criterion, the theory leads to observed growth laws.

Résumé

La théorie de fissure de Bilby, Cottrell et Swinden est appliquée on problème de la croissance des fissures de fatigue. On montre que si l' on adopte un déplacement critique total comme critère de rupture, la théorie conduit aux lois de croissance observées expérimentalement.

Zusammenfassung

Die Risstheorie von Bilby, Cottrell and Swinden wird auf das Problem des Wachstums der Ermüdungsrisse angewandt. Wehn eine gesamte Kritische Verschiebung als Bruchkriterium angerommen wind, zeigt es sich dass these Theorie zu der beobachteten Wachstumsgesetzen führt.

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Author information

Authors and Affiliations

  1. Materials Science Department, The Technological Institute, Northwestern University, Evanston, Illinois, USA

    J. Weertman

Authors
  1. J. Weertman
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Support by the U.S. Office of Naval Research is acknowledged.

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Weertman, J. Rate of growth of fatigue cracks calculated from the theory of infinitesimal dislocations distributed on a plane. Int J Fract 2, 460–467 (1966). https://doi.org/10.1007/BF00183823

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  • DOI: https://doi.org/10.1007/BF00183823

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