Strip Yield Model for a Crack in a Plate of Arbitrary Thickness

Andrei G. Kotousov

doi:10.4028/www.scientific.net/KEM.293-294.253

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HomeKey Engineering MaterialsKey Engineering Materials Vols. 293-294Strip Yield Model for a Crack in a Plate of...

Strip Yield Model for a Crack in a Plate of Arbitrary Thickness

Abstract:

This paper presents new analytical results on the crack tip opening displacement (CTOD) for a through-the-thickness crack in an infinite plate of arbitrary thickness. These results are based on a new fundamental solution for an edge dislocation obtained earlier and published elsewhere. The analytical predictions of CTOD for various ratios of the crack length to the plate thickness are compared with an independent three-dimensional elasto-plastic finite element (FE) study. It is shown that both analytical and numerical results are in a good agreement when the numerical calculations are not affected by the size of the FE mesh and finite boundaries of the FE model.

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Periodical:

Key Engineering Materials (Volumes 293-294)

Pages:

253-260

DOI:

https://doi.org/10.4028/www.scientific.net/KEM.293-294.253

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Online since:

September 2005

Authors:

Andrei G. Kotousov

Keywords:

Crack Tip Opening Displacement (CTOD), Distributed Dislocation Technique, Non-Linear Fracture Mechanics, Strip Yield Model, Structural Integrity, Thickness Effect

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DOI: 10.1520/stp14629s

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