Reference stress based fracture mechanics analysis for circumferential through-wall cracked pipes: Experimental validation

Yun Jae Kim, Nam Su Huh, Young Jin Kim

Research output: Contribution to journalConference article

3 Citations (Scopus)

Abstract

This paper presents experimental validation of the reference stress based J estimates for circumferential through-wall cracked (TWC) pipes, recently proposed by the authors. Using the pipe test data for circumferential TWC pipes given in the Pipe Fracture Encyclopedia [Pipe Fracture Test Data, vol. 3, Battelle, 1997], the predicted fracture initiation and instability loads according to the proposed reference stress method are compared with experimental ones as well as predictions according to the reference stress method embedded in R6. The results show that both the R6 method and the proposed method give conservative estimates of initiation and maximum moments for circumferential TWC pipes, compared to experimental data. For longer cracks, the proposed method reduces the conservatism embedded in the estimated J according to the R6 method, and the resulting predictions are less conservative, compared to those from the R6 method. For shorter cracks, on the other hand, the proposed method reduces possible non-conservatism embedded in estimated J according to the R6 method, and the resulting predictions are slightly more conservative.

Original languageEnglish
Pages (from-to)83-96
Number of pages14
JournalNuclear Engineering and Design
Volume226
Issue number2
DOIs
Publication statusPublished - 2003 Dec 1
Externally publishedYes
EventSelected adn Revised papers form the 2nd MPA-SAFE Workshop 2001 - Seoul, Korea, Republic of
Duration: 2001 Sep 102001 Sep 11

ASJC Scopus subject areas

  • Nuclear and High Energy Physics
  • Nuclear Energy and Engineering
  • Materials Science(all)
  • Safety, Risk, Reliability and Quality
  • Waste Management and Disposal
  • Mechanical Engineering

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