Crack Growth Analysis due to PWSCC in Dissimilar Metal Butt Weld for Reactor Piping Considering Hydrostatic and Normal Operating Conditions

被引：2

作者：

Lee, Hwee-Sueng ^{[1
]}

Huh, Nam-Su ^{[1
]}

Lee, Seung-Gun ^{[2
]}

Park, Heung-Bae ^{[2
]}

Lee, Sung-Ho ^{[3
]}

机构：

[1] Seoul Natl Univ Sci & Technol, Dept Mech Syst Design Engn, Seoul, South Korea

[2] KEPCO Engn & Construct Co, Gimcheon, South Korea

[3] KHNP Cent Res Inst, Daejeon, South Korea

来源：

TRANSACTIONS OF THE KOREAN SOCIETY OF MECHANICAL ENGINEERS A | 2013年 / 37卷 / 01期

关键词：

Dissimilar Metal Butt Weld; Hydrostatic Testing; Normal Operating Condition; Welding Residual Stress; Primary Water Stress Corrosion Cracking;

D O I：

10.3795/KSME-A.2013.37.1.047

中图分类号：

TH [机械、仪表工业];

学科分类号：

0802 ;

摘要：

This study investigates the crack growth behavior due to primary water stress corrosion cracking (PWSCC) in the dissimilar metal butt weld of a reactor piping using Alloy 82/182. First, detailed finite element stress analyses were performed to predict the stress distribution of the dissimilar metal butt weld in which the hydrostatic and the normal operating loads as well as the weld residual stresses were considered to evaluate the stress redistribution due to mechanical loadings. Based on the stress distributions along the wall thickness of the dissimilar metal butt weld, the crack growth behavior of the postulated axial and circumferential cracks were predicted, from which the crack growth diagram due to PWSCC was proposed. The present results can be applied to predict the crack growth rate in the dissimilar metal butt weld of reactor piping due to PWSCC.

引用

页码：47 / 54

页数：8

共 8 条

[1] Preemptive weld overlays to mitigate PWSCC concerns in PWR piping system dissimilar metal butt welds
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Proceedings of the ASME Pressure Vessels and Piping Conference 2005, Vol 6, 2005, 6 : 29 - 39
[2] Stress Distribution in the Dissimilar Metal Butt Weld of Nuclear Reactor Piping due to the Simulation Technique for the Repair Welding
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[3] Advanced FEA Modeling of PWSCC Crack Growth in PWR Dissimilar Metal Piping Butt Welds and Application to the Industry Inspection and Mitigation Program
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Collin, J.
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[5] Crack growth analysis and remaining life prediction of dissimilar metal pipe weld joint with circumferential crack under cyclic loading
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[6] Modal seismic analysis of reactor internals considering the initial stress at normal operating conditions: A study on Atucha-I NPP control rods
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[7] Stress corrosion cracking initiation and short crack growth behaviour in Alloy 182 weld metal under simulated boiling water reactor hydrogen water chemistry conditions
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[8] Analysis of fracture toughness and fatigue crack growth rates of electron beam-welded dissimilar nickel-based superalloys: Mode-I cracks oriented normal to the weld
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