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Lookup NU author(s): Ankang Cheng, Dr Nianzhong Chen
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© 2017 Taylor & Francis Group, London. A modified method for the structural integrity assessment of components subjected to Corrosion Fatigue (CF) is proposed. The criterion parameter assessing CF within current industrial standards for integrity assessment is calculated invoking the model established by authors. Based on the correlation of the Environment-Affected Zone (EAZ) and the plastic zone, the model correlates the corrosion and crack processes. In this model, the critical point where transition in the CF crack growth curve happens can be predicted, and the length of the Stress Intensity Factor (SIF) over which the plateau of the crack growth rate lasts in the curve can also be approximated. Accordingly, a new criterion parameter KFAD is defined for judging the severity of the structural integrity damage of pipeline carbon steels, such as X65, due to CF. Potential influence of temperature and loading frequency on KFAD is analyzed and discussed. It is found that KFAD increases with the decrease of the loading frequency, and KFAD increases as the environmental temperature increases within the limited range.
Author(s): Cheng A, Chen N-Z
Publication type: Conference Proceedings (inc. Abstract)
Publication status: Published
Conference Name: Progress in the Analysis and Design of Marine Structures: Proceedings of the 6th International Conference on Marine Structures (MARSTRUCT 2017)
Year of Conference: 2017
Pages: 659-666
Online publication date: 24/04/2017
Acceptance date: 02/04/2016
Publisher: CRC Press/Balkema
URL: https://doi.org/10.1201/9781315157368-76
DOI: 10.1201/9781315157368-76
Library holdings: Search Newcastle University Library for this item
ISBN: 9781138069077
