Effects of similar metal weld on residual stress in dissimilar metal weld according to safe end length kimy0308@korea.ac.kr

Tae Kwang Song, Yun Bae Chun, Chang Young Oh, Hong Yeol Bae, Yun Jae Kim, Sang Hoon Lee, Kyoung Soo Lee, Chi Yong Park

研究成果: Article査読

7 被引用数 (Scopus)

抄録

Nozzle in nuclear power plant is connected to pipe using safe end. Dissimilar metal weld between nozzle and safe end is followed by similar metal weld between safe end and pipe. And thus residual stress in dissimilar metal weld can be affected by similar metal weld. Similar metal weld impose bending stress on dissimilar metal weld, which is according to the length of safe end. In this study, simple nozzle model which covers various radius to thickness ratios was proposed to quantify residual stress in dissimilar metal weld based on finite element analyses. As a result, short length of safe end was proved to be more effective to mitigate residual stress in dissimilar metal weld and critical effective length of safe end is provided according to the radius to thickness ratio.

本文言語English
ページ(範囲)664-672
ページ数9
ジャーナルTransactions of the Korean Society of Mechanical Engineers, A
33
7
DOI
出版ステータスPublished - 2009 8 7
外部発表はい

ASJC Scopus subject areas

  • 機械工学

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