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http://dx.doi.org/10.3744/SNAK.2011.48.3.238

Experiments and Finite Element Analysis for the Estimation of Stress Relief in Welded Structures  

Yang, Yong-Sic (Department of Naval Architecture and Ocean Engineering, Inha University)
Kang, Joong-Kyoo (Daewoo Shipbuilding & Marine Engineering Co., Ltd., Ship and Marine Structure R&D Team)
Lee, Jang-Hyun (Department of Naval Architecture and Ocean Engineering, Inha University)
Kim, Sung-Chan (Department of Ship Structure and Ocean System, Inha Technical College)
Hwang, Se-Yum (Department of Naval Architecture and Ocean Engineering, Inha University)
Publication Information
Journal of the Society of Naval Architects of Korea / v.48, no.3, 2011 , pp. 238-245 More about this Journal
Abstract
Welding inevitably introduces the residual stresses which affect the fatigue strength of the joint structure. The mitigation of fatigue strength depends on the residual stress magnitude and distribution. Stress relief analyses are of practical interest for all cyclic loaded welded structures, such as ships and offshore structures. In order to estimate the effects of relaxation of residual stresses in the welded structure, this paper presents a finite element analysis procedure and experimental results for the welded structure. Cruciform specimens joint by MAG welding have been tested to measure the released stress. Relieved welding residual stresses obtained by finite element analysis are compared with those measured by experiment.
Keywords
Mechanical stress relief; Welding residual stress; Finite element analysis; Cyclic load;
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Times Cited By KSCI : 8  (Citation Analysis)
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