Abstract
In bench tests, the use of brittle tensosensitive rosin coatings for defect detection and strength assessment of the weld seam close to T pieces in oil pipelines is considered. The cracking pattern in the brittle coating yields a map of the stress-strain state at the surface of the T piece over the perimeter of the side-pipe weld and permits identification of likely failure zones. The maximum strain due to the working loads in the most stressed zones of the structure may be estimated.
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Russian Patent 2058016.
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Original Russian Text © N.A. Makhutov, B.N. Ushakov, I.E. Vasil’ev, 2011, published in Vestnik Mashinostroeniya, 2011, No. 2, pp. 44–48.
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Makhutov, N.A., Ushakov, B.N. & Vasil’ev, I.E. Strength assessment and defect detection in welded pipeline seams by means of brittle tensosensitive coatings. Russ. Engin. Res. 31, 123–127 (2011). https://doi.org/10.3103/S1068798X1102016X
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DOI: https://doi.org/10.3103/S1068798X1102016X