volume 4, issue 4, P279-291 2014
DOI: 10.12989/ose.2014.4.4.279
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Ali Shaghaghi Moghaddam, Saeid Mohammadnia

Abstract: Smart flanges are used for pipeline and riser repair in subsea. In a typical case in the gas export pipeline project, the end cap bolts of a 4inch smart flange were broken during operation, and in turn leakage occurred. This work presents the detail of three dimensional finite element analysis of the smart flange to support the observed end cap bolts failure. From finite element analysis it turns out that in the presence of external bending moment, an uneven contact distribution is present between seal and end…

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