Numerical validation of burst pressure estimation equations for steam generator tubes with multiple axial surface cracks

This paper provides further validation of the burst pressure estimation equations for multiple axial surface cracked steam generator tubes, recently proposed by the authors based on analytical local collapse load approach against systematic FE damage analysis results of Alloy 690 tubes with twin axi...

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Published inNuclear engineering and technology Vol. 51; no. 2; pp. 579 - 587
Main Authors Kim, Ji-Seok, Lee, Myeong-Woo, Kim, Yun-Jae, Kim, Jin-Weon
Format Journal Article
LanguageEnglish
Published Elsevier 01.04.2019
한국원자력학회
Subjects
원자력공학
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Summary:This paper provides further validation of the burst pressure estimation equations for multiple axial surface cracked steam generator tubes, recently proposed by the authors based on analytical local collapse load approach against systematic FE damage analysis results of Alloy 690 tubes with twin axial surface cracks. Wide ranges of the relative crack depth and multiple crack configurations are considered. Comparison shows good agreements, giving sufficient confidence of the proposed equations. Keywords: Alloy 690 steam generator tube, Multiple axial surface cracks, Burst pressure estimation equations, Finite element damage analysis
ISSN:1738-5733
2234-358X
DOI:10.1016/j.net.2018.10.013