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A Study on the Analysis for Welding Residual Stress of Preflex Beam  

방한서 (조선대학교 항공ㆍ조선공학부)
주성민 (조선대학교 선박해양공학과 대학원)
안해영 ((주)삼현 P.F)
Publication Information
Journal of Ocean Engineering and Technology / v.17, no.6, 2003 , pp. 65-71 More about this Journal
Abstract
Since the preflex beam is fabricated through welding, the pre-compressive stresses that should occur over the concrete pier are diminished by the welding residual stresses. Therefore welding residual stresses must be relieved during the fabrication. Therefore, the analysis and examination of the accurate welding residual stress distribution characteristics are necessary. In this study, accurate distribution of welding residual stress of the preflex beam is analyzed by the finite element method, using 2 dimensional and 3 dimensional elements. Further, the thermo-mechanical behavior of the preflex beam is also studied. After the finite element analysis, real distribution of welding residual stress is measured using the sectioning method, and then is compared with the simulation results. The distribution of welding residual stress by finite analysis agreed well with the experimental results.
Keywords
Preflex Beam; Finite Element Method; Welding Residual Stress; Pre-compressive Stress;
Citations & Related Records
Times Cited By KSCI : 4  (Citation Analysis)
연도 인용수 순위
1 후판용접부의 역학적 특성 /
[ 방한서 ] / 대한용접학회지
2 점열탄소성 이론에 의한 용접후열처리에 대한 수치해석 /
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3 유한요소법에 의한 박판용접의 2차원비정상열전도해석 /
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[ Englekirk R. ] / Steel Structures
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6 유한요소법에 의한 후판용접시의 3차원 비정상 열전도해석 /
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7 Thermal Stress Analysis of Metals with Temperature Dependent Mechanical Properties /
[ Ueda,Y.;Yamakawa,T. ] / Proc Int. conf. on Mechanical Behavior of Materials
8 Distributions of Three-dimensional Welding Residual Stresses and Plstic Strains and Their Production Mechanism /
[ Ueda,Y.;Kim,Y.C.;Garatari,K.;Yamakita,T.;Bang,H.S. ] / Trans. of JWRI