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Lookup NU author(s): Dr Enrong Chang
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A new set of stress intensity factor (SIF) parametric equation to predict weight function and stress intensity factor for a semi-elliptical surface saddle crack is discussed. With the hot-spot stress, degree-of-bending values and appropriate load-shedding models, it can be used to measure the deepest SIFs for semi-elliptical surface saddle cracks in tubular welded joints. The curvature effect of tubes to the SIFs is identified by comparing the predictions with three-dimensional T-butt weight-function-based SIF solution. A comparison of the predictions with tubular joint fatigue, has shown that this new SIF solution can work well with the non-linear moment release model.
Author(s): Chang E, Dover WD
Publication type: Article
Publication status: Published
Journal: Journal of Strain Analysis for Engineering Design
Year: 2005
Volume: 40
Issue: 4
Pages: 301-326
Print publication date: 01/05/2005
ISSN (print): 0309-3247
ISSN (electronic): 2041-3130
Publisher: Sage Publications Ltd
URL: https://doi.org/10.1243/030932405X15972
DOI: 10.1243/030932405X15972
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