Abstract
AbstractBritish Standard 7910:2013 includes a single set of equations for estimating the weld toe magnification factor (Mk) of different types of welded joints with a semi‐elliptical surface crack. In this study, extensive finite element analyses are performed to determine the Mk of plate‐to‐plate butt‐welded joints subjected to axial and bending loading. The Mk values at the crack deepest points and the crack ends are determined. It is found that the Mk results of butt welds are different with those of single T‐butt joints with percentage difference in values being as high as 63.8% and 97.4% for axial and bending loading cases, respectively. Percentage differences of 60.4% and 358.2% for axial and bending loading cases are observed between butt welds and X‐joints. New Mk equations for butt welds are proposed using multiple regression analyses.
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