Yield locus for circumferential part-through surface cracked pipes under combined pressure and bending

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

doi:10.1016/j.engfracmech.2007.10.006

Yield locus for circumferential part-through surface cracked pipes under combined pressure and bending

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

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

8 Citations (Scopus)

Abstract

This paper provides analytical plastic limit load solutions of pipes with circumferential part-through surface cracks under combined pressure and bending. A key issue is to postulate discontinuous hoop stress distributions in the net-section. General equations for arbitrary-shaped cracks are derived and closed-form solutions are given for two idealized cracks; a constant depth crack and circular crack. Validity of the proposed limit load solutions are checked against the results from three-dimensional (3D) finite element (FE) limit analyses using elastic-perfectly plastic material behaviour.

Original language	English
Pages (from-to)	2175-2190
Number of pages	16
Journal	Engineering Fracture Mechanics
Volume	75
Issue number	8
DOIs	https://doi.org/10.1016/j.engfracmech.2007.10.006
Publication status	Published - 2008 May
Externally published	Yes

Keywords

Circumferential part-through surface crack
Combined pressure and bending
FE limit analysis
Limit load
Local wall thinning

ASJC Scopus subject areas

Materials Science(all)
Mechanics of Materials
Mechanical Engineering

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10.1016/j.engfracmech.2007.10.006

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title = "Yield locus for circumferential part-through surface cracked pipes under combined pressure and bending",

abstract = "This paper provides analytical plastic limit load solutions of pipes with circumferential part-through surface cracks under combined pressure and bending. A key issue is to postulate discontinuous hoop stress distributions in the net-section. General equations for arbitrary-shaped cracks are derived and closed-form solutions are given for two idealized cracks; a constant depth crack and circular crack. Validity of the proposed limit load solutions are checked against the results from three-dimensional (3D) finite element (FE) limit analyses using elastic-perfectly plastic material behaviour.",

keywords = "Circumferential part-through surface crack, Combined pressure and bending, FE limit analysis, Limit load, Local wall thinning",

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

year = "2008",

month = may,

doi = "10.1016/j.engfracmech.2007.10.006",

language = "English",

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pages = "2175--2190",

journal = "Engineering Fracture Mechanics",

issn = "0013-7944",

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TY - JOUR

T1 - Yield locus for circumferential part-through surface cracked pipes under combined pressure and bending

AU - Oh, Chang Kyun

AU - Kim, Yun Jae

AU - Kim, Jong Sung

AU - Jin, Tae Eun

PY - 2008/5

Y1 - 2008/5

N2 - This paper provides analytical plastic limit load solutions of pipes with circumferential part-through surface cracks under combined pressure and bending. A key issue is to postulate discontinuous hoop stress distributions in the net-section. General equations for arbitrary-shaped cracks are derived and closed-form solutions are given for two idealized cracks; a constant depth crack and circular crack. Validity of the proposed limit load solutions are checked against the results from three-dimensional (3D) finite element (FE) limit analyses using elastic-perfectly plastic material behaviour.

AB - This paper provides analytical plastic limit load solutions of pipes with circumferential part-through surface cracks under combined pressure and bending. A key issue is to postulate discontinuous hoop stress distributions in the net-section. General equations for arbitrary-shaped cracks are derived and closed-form solutions are given for two idealized cracks; a constant depth crack and circular crack. Validity of the proposed limit load solutions are checked against the results from three-dimensional (3D) finite element (FE) limit analyses using elastic-perfectly plastic material behaviour.

KW - Circumferential part-through surface crack

KW - Combined pressure and bending

KW - FE limit analysis

KW - Limit load

KW - Local wall thinning

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DO - 10.1016/j.engfracmech.2007.10.006

M3 - Article

AN - SCOPUS:39349114041

SN - 0013-7944

VL - 75

SP - 2175

EP - 2190

JO - Engineering Fracture Mechanics

JF - Engineering Fracture Mechanics

IS - 8

ER -

Yield locus for circumferential part-through surface cracked pipes under combined pressure and bending

Abstract

Keywords

ASJC Scopus subject areas

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