The effect of plastic deformation on crack initiation in fatigue

H. Fan; Leon M Keer; T. Mura

doi:10.1016/0020-7683(91)90104-N

The effect of plastic deformation on crack initiation in fatigue

H. Fan^*, Leon M Keer, T. Mura

^*Corresponding author for this work

Civil and Environmental Engineering

Research output: Contribution to journal › Article › peer-review

6 Scopus citations

Abstract

Qualitative considerations are given in the present paper concerning the effects of localized plastic deformation on the fatigue crack initiation life and stress intensity factor of a microcrack. The localized plastic zone is modelled as an elliptical inhomogeneity with eigenstrains. With the consideration of this localized plastic deformation, the calculated crack initiation cycle number is greater and the stress intensity factor of a micro-crack lower than those obtained without considering the plastic deformation effect.

Original language	English (US)
Pages (from-to)	1095-1104
Number of pages	10
Journal	International Journal of Solids and Structures
Volume	28
Issue number	9
DOIs	https://doi.org/10.1016/0020-7683(91)90104-N
State	Published - Jan 1 1991

ASJC Scopus subject areas

Modeling and Simulation
Materials Science(all)
Condensed Matter Physics
Mechanics of Materials
Mechanical Engineering
Applied Mathematics

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title = "The effect of plastic deformation on crack initiation in fatigue",

abstract = "Qualitative considerations are given in the present paper concerning the effects of localized plastic deformation on the fatigue crack initiation life and stress intensity factor of a microcrack. The localized plastic zone is modelled as an elliptical inhomogeneity with eigenstrains. With the consideration of this localized plastic deformation, the calculated crack initiation cycle number is greater and the stress intensity factor of a micro-crack lower than those obtained without considering the plastic deformation effect.",

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N2 - Qualitative considerations are given in the present paper concerning the effects of localized plastic deformation on the fatigue crack initiation life and stress intensity factor of a microcrack. The localized plastic zone is modelled as an elliptical inhomogeneity with eigenstrains. With the consideration of this localized plastic deformation, the calculated crack initiation cycle number is greater and the stress intensity factor of a micro-crack lower than those obtained without considering the plastic deformation effect.

AB - Qualitative considerations are given in the present paper concerning the effects of localized plastic deformation on the fatigue crack initiation life and stress intensity factor of a microcrack. The localized plastic zone is modelled as an elliptical inhomogeneity with eigenstrains. With the consideration of this localized plastic deformation, the calculated crack initiation cycle number is greater and the stress intensity factor of a micro-crack lower than those obtained without considering the plastic deformation effect.

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