Fatigue life prediction of corroded specimen

Y. Xiang, Y. Liu

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

A new methodology of fatigue life prediction for corroded specimens is proposed in this paper based on an equivalent initial flaw size (EIFS) methodology and a corrosion pit growth function. The proposed EIFS methodology is based on the Kitagawa diagram and the El Haddad model. Life prediction for smooth specimens is performed by employing the crack growth analysis starting from an assumed crack size determined by the EIFS. A growing semi-circular notch is assumed to exist on the specimen surface caused by the corrosive environments. An asymptotic solution is used for the stress intensity factor solution of a crack at the notch root. Fatigue life can be predicted using the crack growth analysis, in which a crack propagates from the notch root. Various experimental data for aluminum alloys and steels are used to validate the proposed methodology.

Original languageEnglish (US)
Title of host publication12th International Conference on Fracture 2009, ICF-12
Pages2442-2451
Number of pages10
StatePublished - Dec 1 2009
Externally publishedYes
Event12th International Conference on Fracture 2009, ICF-12 - Ottawa, ON, Canada
Duration: Jul 12 2009Jul 17 2009

Publication series

Name12th International Conference on Fracture 2009, ICF-12
Volume3

Other

Other12th International Conference on Fracture 2009, ICF-12
CountryCanada
CityOttawa, ON
Period7/12/097/17/09

ASJC Scopus subject areas

  • Geotechnical Engineering and Engineering Geology

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  • Cite this

    Xiang, Y., & Liu, Y. (2009). Fatigue life prediction of corroded specimen. In 12th International Conference on Fracture 2009, ICF-12 (pp. 2442-2451). (12th International Conference on Fracture 2009, ICF-12; Vol. 3).