A method to predict failure pressures of steam generator tubes with multiple through-wall cracks

Nak Hyun Kim; Chang Sik Oh; Yun Jae Kim

doi:10.1016/j.engfracmech.2009.11.007

A method to predict failure pressures of steam generator tubes with multiple through-wall cracks

Nak Hyun Kim, Chang Sik Oh, Yun Jae Kim

Research output: Contribution to journal › Article › peer-review

5 Citations (Scopus)

Abstract

This paper proposes a simple numerical method to predict burst pressures of steam generator tubes with multiple through-wall cracks, based on the stress-modified fracture strain damage model with stress reduction technique. For validation, simulated results using the proposed method are compared with 31 published experimental data of Alloy 600 plates and tubes with single or two through-wall cracks, showing that predicted loads are within 10% of experimentally-measured ones for all cases considered. Furthermore, a parametric study is performed to investigate the interaction effect of two through-wall cracks in Alloy 600 steam generator tubes under internal pressure.

Original language	English
Pages (from-to)	842-855
Number of pages	14
Journal	Engineering Fracture Mechanics
Volume	77
Issue number	5
DOIs	https://doi.org/10.1016/j.engfracmech.2009.11.007
Publication status	Published - 2010 Mar

Bibliographical note

Funding Information:
This research is supported by Basic Atomic Energy Research Institute and Engineering Research Center (No. 2009-0063170 ), funded by the Korea Science & Engineering Foundation .

Keywords

Alloy 600 steam generator tube
Ductile failure simulation
Finite element analysis
Fracture strain model
Multiple through-wall cracked plates and tubes

ASJC Scopus subject areas

General Materials Science
Mechanics of Materials
Mechanical Engineering

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10.1016/j.engfracmech.2009.11.007

Cite this

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title = "A method to predict failure pressures of steam generator tubes with multiple through-wall cracks",

abstract = "This paper proposes a simple numerical method to predict burst pressures of steam generator tubes with multiple through-wall cracks, based on the stress-modified fracture strain damage model with stress reduction technique. For validation, simulated results using the proposed method are compared with 31 published experimental data of Alloy 600 plates and tubes with single or two through-wall cracks, showing that predicted loads are within 10% of experimentally-measured ones for all cases considered. Furthermore, a parametric study is performed to investigate the interaction effect of two through-wall cracks in Alloy 600 steam generator tubes under internal pressure.",

keywords = "Alloy 600 steam generator tube, Ductile failure simulation, Finite element analysis, Fracture strain model, Multiple through-wall cracked plates and tubes",

author = "Kim, {Nak Hyun} and Oh, {Chang Sik} and Kim, {Yun Jae}",

note = "Funding Information: This research is supported by Basic Atomic Energy Research Institute and Engineering Research Center (No. 2009-0063170 ), funded by the Korea Science & Engineering Foundation .",

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AU - Oh, Chang Sik

AU - Kim, Yun Jae

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AB - This paper proposes a simple numerical method to predict burst pressures of steam generator tubes with multiple through-wall cracks, based on the stress-modified fracture strain damage model with stress reduction technique. For validation, simulated results using the proposed method are compared with 31 published experimental data of Alloy 600 plates and tubes with single or two through-wall cracks, showing that predicted loads are within 10% of experimentally-measured ones for all cases considered. Furthermore, a parametric study is performed to investigate the interaction effect of two through-wall cracks in Alloy 600 steam generator tubes under internal pressure.

KW - Alloy 600 steam generator tube

KW - Ductile failure simulation

KW - Finite element analysis

KW - Fracture strain model

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A method to predict failure pressures of steam generator tubes with multiple through-wall cracks

Abstract

Bibliographical note

Keywords

ASJC Scopus subject areas

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