Please use this identifier to cite or link to this item: https://hdl.handle.net/10356/82955
Title: Stress intensity factors for semi-elliptical surface cracks in plate-to-plate butt welds with parallel misalignment of same thickness
Authors: Zhao, Hai Sheng
Lie, S. T.
Zhang, Yao
Keywords: Finite element analyses
Misaligned butt welds
Issue Date: 2017
Source: Zhao, H. S., Lie, S. T., & Zhang, Y. (2017). Stress intensity factors for semi-elliptical surface cracks in plate-to-plate butt welds with parallel misalignment of same thickness. Marine Structures, 53, 148-163.
Series/Report no.: Marine Structures
Abstract: A set of fatigue and fracture assessment equations had been incorporated into British Standard 7910:2013 (BS 7910:2013) to estimate the effect of misalignment for various geometric configurations containing a surface crack. In this study, extensive 3-D finite element (FE) analyses are carried out to determine the dimensionless stress intensity factors (Y) at the crack deepest point and crack ends of plate-to-plate butt welds with parallel misalignment of same thickness. In comparison to BS 7910:2013, it is observed that the assessment equations underestimate the Y values for shallow cracks and overestimate the corresponding values for deeper cracks with percentage differences in values being as high as 82% and 12%, respectively. New Y equations for misaligned butt welds are proposed using multiple regression analyses.
URI: https://hdl.handle.net/10356/82955
http://hdl.handle.net/10220/42355
ISSN: 0951-8339
DOI: 10.1016/j.marstruc.2017.02.005
Rights: © 2017 Elsevier Ltd. This is the author created version of a work that has been peer reviewed and accepted for publication by Marine Structures, Elsevier Ltd. It incorporates referee’s comments but changes resulting from the publishing process, such as copyediting, structural formatting, may not be reflected in this document. The published version is available at: [http://dx.doi.org/10.1016/j.marstruc.2017.02.005].
Fulltext Permission: open
Fulltext Availability: With Fulltext
Appears in Collections:CEE Journal Articles

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