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https://hdl.handle.net/2440/57063
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Type: | Journal article |
Title: | Crack growth retardation following the application of an overload cycle using a strip-yield model |
Author: | Codrington, J. Kotooussov, A. |
Citation: | Engineering Fracture Mechanics, 2009; 76(11):1667-1682 |
Publisher: | Pergamon-Elsevier Science Ltd |
Issue Date: | 2009 |
ISSN: | 0013-7944 |
Statement of Responsibility: | John Codrington and Andrei Kotousov |
Abstract: | Experiments have shown that the application of an overload cycle can act to retard crack growth and even potentially lead to crack arrest. This paper describes a new method for investigating fatigue crack growth after the application of an overload cycle under plane stress conditions. The developed method is based on the concept of plasticity-induced crack closure and utilises the distributed dislocation technique and a modified strip-yield model. The present results are compared to previous experimental data for several materials. A good agreement is found, with the predictions showing the same trends in the various stages of post-overload crack growth. © 2009 Elsevier Ltd. All rights reserved. |
Keywords: | Crack growth retardation Distributed dislocation technique Fatigue crack closure Overload effect Plasticity-induced crack closure |
Description: | Copyright © 2009 Elsevier Ltd All rights reserved. |
DOI: | 10.1016/j.engfracmech.2009.02.021 |
Published version: | http://dx.doi.org/10.1016/j.engfracmech.2009.02.021 |
Appears in Collections: | Aurora harvest 5 Materials Research Group publications Mechanical Engineering publications |
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