Transactions of the Korean Society of Mechanical Engineers A (대한기계학회논문집A)

The Korean Society of Mechanical Engineers (대한기계학회)
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Effect of Local Wall Thinning Defect on the Collapse Moment of Elbow

엘보우의 붕괴모멘트에 미치는 국부 감육결함의 영향

  • 김진원 (조선대학교 원자력공학과) ;
  • 김태순 (한전 전력연구원 원자력연구실) ;
  • 박치용 (한전 전력연구원 원자력연구실)
  • Published : 2004.04.01
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Abstract

The purpose of this study is to investigate the effect of local wall thinning on the collapse of elbow subjected to internal pressure and bending moment. Thus, the nonlinear three-dimensional finite element analyses were performed to obtain the collapse moment of elbow containing various wall thinning defects located at intrados and extrados under two loading modes (closing and opening modes) with internal pressure. From the results of analysis, the effect of wall thinning defect on the global moment-rotation behavior of elbow was discussed, and the dependence of collapse moment of elbow on wall thinning depth, length, and circumferential angle was investigated under different loading mode and defect location.

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References

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