Compensation of welding stresses taking into account their concentration by preliminary bending of the ship's hull
EDN: OGLHSP
Abstract
Residual welding stresses that occur in the course of ship repair during the replacement of worn hull plates can pose a serious danger in terms of the overall longitudinal strength of the ship's hull. The paper analyzes the stress state along the contour of a rectangular sheet welded into the flooring taking into account the preliminary stretching of the flooring. Stresses are considered both in the weld material and in the near-seam zones of the flooring and the sheet being welded. A technological method is substantiated and formulated to eliminate the stress concentration on the contour of the welded sheet caused by the geometric parameters of the cutout while compensating for welding stresses by pre-stretching the repaired flooring.
About the Authors
A. A. Vorobyeva
Far Eastern Federal University
Russian Federation
Russian Federation
PhD student
690922, Vladivostok, Russky Island, Ajax Bay, 10
A. P. Anosov
Far Eastern Federal University
Russian Federation
Russian Federation
DSc, Professor
690922, Vladivostok, Russky Island, Ajax Bay, 10
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Review
For citations:
Vorobyeva A.A., Anosov A.P. Compensation of welding stresses taking into account their concentration by preliminary bending of the ship's hull. Research Bulletin by Russian Maritime Register of Shipping. 2025;1(80):94-107. (In Russ.) EDN: OGLHSP
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