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
N1 - Funding Information:
The authors are grateful for the support provided by a grant from Safety and Structural Integrity Research Centre at Sungkyunkwan University.
Copyright:
Copyright 2008 Elsevier B.V., All rights reserved.
PY - 2003/8
Y1 - 2003/8
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.
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U2 - 10.1016/S0029-5493(03)00065-7
DO - 10.1016/S0029-5493(03)00065-7
M3 - Article
AN - SCOPUS:0038148452
SN - 0029-5493
VL - 223
SP - 255
EP - 262
JO - Nuclear Engineering and Design
JF - Nuclear Engineering and Design
IS - 3
ER -