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http://dx.doi.org/10.5762/KAIS.2011.12.6.2470

Simulation of plate deformation due to line heating considering water cooling effects  

Ko, Dae-Eun (Department of Naval Architecture and Ocean Engineering, Dong-Eui University)
Ha, Yun-Sok (Department of Welding Research, Samsung Heavy Industries Co., Ltd.)
Publication Information
Journal of the Korea Academia-Industrial cooperation Society / v.12, no.6, 2011 , pp. 2470-2476 More about this Journal
Abstract
Inherent strain method, a hybrid method of experimental and numerical, is known to be very efficient in predicting the plate deformation due to line heating. For the simulation of deformation using inherent strain method, it is important to determine the magnitude and the region of inherent strain properly. Because the phase of steel transforms differently depending on the actual speed of cooling following line heating, it should be also considered in determining the inherent strain. A heat transfer analysis method including the effects of impinging water jet, film boiling, and radiation is proposed to simulate the water cooling process widely used in shipyards. From the above simulation it is possible to obtain the actual speed of cooling and volume percentage of each phase in the inherent strain region of a line heated steel plate. Based on the material properties calculated from the volume percentage of each phase, it should be possible to predict the plate deformations due to line heating with better precision.
Keywords
Inherent strain method; Line heating; Water cooling effect; Phase transformation; Plate deformation;
Citations & Related Records
Times Cited By KSCI : 1  (Citation Analysis)
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