Numerical Prediction of Maximum Load-Carrying Capacity of Cracked Alloy 690TT Steam Generator Tubes

Jun Young Jeon, Yun-Jae Kim, Jin Weon Kim, Kuk Hee Lee, Jong Sung Kim

Research output: Contribution to journalArticle

4 Citations (Scopus)


This paper presents a finite element (FE) simulation technique to predict maximum load-carrying capacity of cracked steam generator tubes and its application to Alloy 690TT tubes. The simulation method is based on a simplified version of the stress modified fracture strain model. The damage model is determined from tensile test and one cracked tube test data. Predicted maximum pressures are compared with 23 test data of axial through-wall and surface cracked Alloy 690TT steam generator tubes. Comparison with experimental data shows good agreement.

Original languageEnglish
Article number041601
JournalJournal of Pressure Vessel Technology, Transactions of the ASME
Issue number4
Publication statusPublished - 2016 Aug 1



  • alloy 690 steam generator tube
  • burst pressure prediction
  • finite element ductile fracture simulation
  • multiaxial fracture strain model

ASJC Scopus subject areas

  • Mechanical Engineering
  • Mechanics of Materials
  • Safety, Risk, Reliability and Quality

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