Approximate J estimates for circumferential cracks in between elbows and attached pipes

Tae Kwang Song; Chang Kyun Oh; Yun Jae Kim; Jong Sung Kim; Te Eun Jin

doi:10.4028/0-87849-440-5.521

Approximate J estimates for circumferential cracks in between elbows and attached pipes

Tae Kwang Song, Chang Kyun Oh, Yun Jae Kim, Jong Sung Kim, Te Eun Jin

School of Mechanical Engineering

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

Abstract

The present work proposes a method for elastic-plastic fracture mechanics analysis of the circumferential through-wall crack in between elbows and attached straight pipes, subject to in-plane bending. Based on small strain finite element limit analyses, closed-form limit load solutions are given first. Then applicability of the reference stress based method to approximately estimate J is proposed. One interesting finding is that a popular approach to assume that the crack locates in the straight pipe could lead to significantly different assessment results.

Original language	English
Pages (from-to)	521-524
Number of pages	4
Journal	Key Engineering Materials
Volume	345-346 I
DOIs	https://doi.org/10.4028/0-87849-440-5.521
Publication status	Published - 2007

Keywords

Circumferential through-wall crack
Elbow
Finite element analysis
J-integral
Reference stress method

ASJC Scopus subject areas

Materials Science(all)
Mechanics of Materials
Mechanical Engineering

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10.4028/0-87849-440-5.521

Cite this

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title = "Approximate J estimates for circumferential cracks in between elbows and attached pipes",

abstract = "The present work proposes a method for elastic-plastic fracture mechanics analysis of the circumferential through-wall crack in between elbows and attached straight pipes, subject to in-plane bending. Based on small strain finite element limit analyses, closed-form limit load solutions are given first. Then applicability of the reference stress based method to approximately estimate J is proposed. One interesting finding is that a popular approach to assume that the crack locates in the straight pipe could lead to significantly different assessment results.",

keywords = "Circumferential through-wall crack, Elbow, Finite element analysis, J-integral, Reference stress method",

author = "Song, {Tae Kwang} and Oh, {Chang Kyun} and Kim, {Yun Jae} and Kim, {Jong Sung} and Jin, {Te Eun}",

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language = "English",

volume = "345-346 I",

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T1 - Approximate J estimates for circumferential cracks in between elbows and attached pipes

AU - Song, Tae Kwang

AU - Oh, Chang Kyun

AU - Kim, Yun Jae

AU - Kim, Jong Sung

AU - Jin, Te Eun

PY - 2007

Y1 - 2007

N2 - The present work proposes a method for elastic-plastic fracture mechanics analysis of the circumferential through-wall crack in between elbows and attached straight pipes, subject to in-plane bending. Based on small strain finite element limit analyses, closed-form limit load solutions are given first. Then applicability of the reference stress based method to approximately estimate J is proposed. One interesting finding is that a popular approach to assume that the crack locates in the straight pipe could lead to significantly different assessment results.

AB - The present work proposes a method for elastic-plastic fracture mechanics analysis of the circumferential through-wall crack in between elbows and attached straight pipes, subject to in-plane bending. Based on small strain finite element limit analyses, closed-form limit load solutions are given first. Then applicability of the reference stress based method to approximately estimate J is proposed. One interesting finding is that a popular approach to assume that the crack locates in the straight pipe could lead to significantly different assessment results.

KW - Circumferential through-wall crack

KW - Elbow

KW - Finite element analysis

KW - J-integral

KW - Reference stress method

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VL - 345-346 I

SP - 521

EP - 524

JO - Key Engineering Materials

JF - Key Engineering Materials

ER -

Approximate J estimates for circumferential cracks in between elbows and attached pipes

Abstract

Keywords

ASJC Scopus subject areas

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