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

Fingerprint

deflection
integrity
Creep
creep
tubes
Inspection
Plastics
inspection
confidence
plastics
plastic
engineering
estimates

ASJC Scopus subject areas

  • Energy Engineering and Power Technology
  • Nuclear Energy and Engineering
  • Civil and Structural Engineering
  • Mechanical Engineering
  • Safety, Risk, Reliability and Quality

Cite this

Estimation of non-linear deflection for cylinder under bending and its application to CANDU pressure tube integrity assessment. / Kim, Yun-Jae; Huh, Nam Su; Kim, Young Jin; Jung, Hyun Kyu.

In: Nuclear Engineering and Design, Vol. 223, No. 3, 01.08.2003, p. 255-262.

Research output: Contribution to journalArticle

@article{efb3293e722a4d2ab1c2003dd6b936f2,
title = "Estimation of non-linear deflection for cylinder under bending and its application to CANDU pressure tube integrity assessment",
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.",
author = "Yun-Jae Kim and Huh, {Nam Su} and Kim, {Young Jin} and Jung, {Hyun Kyu}",
year = "2003",
month = "8",
day = "1",
doi = "10.1016/S0029-5493(03)00065-7",
language = "English",
volume = "223",
pages = "255--262",
journal = "Nuclear Engineering and Design",
issn = "0029-5493",
publisher = "Elsevier BV",
number = "3",

}

TY - JOUR

T1 - Estimation of non-linear deflection for cylinder under bending and its application to CANDU pressure tube integrity assessment

AU - Kim, Yun-Jae

AU - Huh, Nam Su

AU - Kim, Young Jin

AU - Jung, Hyun Kyu

PY - 2003/8/1

Y1 - 2003/8/1

N2 - 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.

AB - 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.

UR - http://www.scopus.com/inward/record.url?scp=0038148452&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=0038148452&partnerID=8YFLogxK

U2 - 10.1016/S0029-5493(03)00065-7

DO - 10.1016/S0029-5493(03)00065-7

M3 - Article

AN - SCOPUS:0038148452

VL - 223

SP - 255

EP - 262

JO - Nuclear Engineering and Design

JF - Nuclear Engineering and Design

SN - 0029-5493

IS - 3

ER -