Estimation of non-linear deflection for cylinder under bending and its application to CANDU pressure tube integrity assessment

Yun Jae Kim, Nam Su Huh, Young Jin Kim, Hyun Kyu Jung

Research output: Contribution to journalArticle

3 Citations (Scopus)

Abstract

This paper proposes engineering estimation equations for the maximum deflection of a cylinder subject to bending under elastic-plastic and elastic-creep conditions. Being based on the reference stress approach, the proposed equations are simple to use and can accommodate general tensile and creep behaviors. Validation against detailed 3D finite element (FE) results using actual stress-strain data and realistic creep-deformation data shows excellent agreement, which provides confidence in the use of the proposed equation. Based on the proposed equations, together with information on in-service inspection data, discussion is given how to estimate future time-dependent and time-independent deflection of the CANDU pressure tube. Thus, the present result would be valuable information for integrity assessment of the CANDU pressure tube.

Original languageEnglish
Pages (from-to)255-262
Number of pages8
JournalNuclear Engineering and Design
Volume223
Issue number3
DOIs
Publication statusPublished - 2003 Aug 1
Externally publishedYes

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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