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Prediction of Welding Deformation of Ship Hull Blocks  

C. D. Jang (Department of Naval Architecture & Ocean Engineering, Seoul National University, RIMSE)
Lee, C. H. (Samsung Heavy Industries CO., LTD.)
Publication Information
Journal of Ship and Ocean Technology / v.7, no.4, 2003 , pp. 41-49 More about this Journal
Abstract
Welding deformation reduces the accuracy of ship hull blocks and decreases productivity due to the need for correction work. Preparing an error-minimizing guide at the design stage will lead to higher quality as well as higher productivity. Therefore, developing a precise method to predict the weld deformation is an essential part of it. This paper proposes an efficient method for predicting the weld deformation of complicated structures based on the inherent strain theory combined with the finite element method. A simulation of a stiffened panel confirmed the applicability of this method to simple ship hull blocks.
Keywords
welding deformation; accuracy management; ship hull blocks; inherent strain; highest temperature; degree of restraint; assembly sequence; finite element method;
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