Finite element plastic loads for circumferential cracked pipe bends under in-plane bending

Yun Jae Kim; Young Il Kim; Tae Kwang Song

doi:10.1016/j.engfracmech.2006.07.001

Finite element plastic loads for circumferential cracked pipe bends under in-plane bending

Yun Jae Kim, Young Il Kim, Tae Kwang Song

School of Mechanical Engineering

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

48 Citations (Scopus)

Abstract

This paper proposes plastic loads (limit load and twice-elastic-slope (TES) plastic load) for pipe bends with circumferential through-wall and part-through surface cracks under in-plane bending, based on three-dimensional FE limit analyses. The material is assumed to be elastic-perfectly plastic, and both the geometrically linear (small strain) and nonlinear (large geometry change) effects are considered. Regarding a crack location, both extrados and intrados cracks are considered. Based on the FE results, closed-form approximations of limit and TES plastic loads are proposed for practical applications, and compared with corresponding solutions for straight pipes.

Original language	English
Pages (from-to)	643-668
Number of pages	26
Journal	Engineering Fracture Mechanics
Volume	74
Issue number	5
DOIs	https://doi.org/10.1016/j.engfracmech.2006.07.001
Publication status	Published - 2007 Mar

Keywords

Circumferential part-through surface crack
Circumferential through-wall crack
Finite element limit analysis
In-plane bending
Limit load
Pipe bend
TES plastic load

ASJC Scopus subject areas

Materials Science(all)
Mechanics of Materials
Mechanical Engineering

Access to Document

10.1016/j.engfracmech.2006.07.001

Cite this

@article{4b72d46361f44997ba66e9baa6710874,

title = "Finite element plastic loads for circumferential cracked pipe bends under in-plane bending",

abstract = "This paper proposes plastic loads (limit load and twice-elastic-slope (TES) plastic load) for pipe bends with circumferential through-wall and part-through surface cracks under in-plane bending, based on three-dimensional FE limit analyses. The material is assumed to be elastic-perfectly plastic, and both the geometrically linear (small strain) and nonlinear (large geometry change) effects are considered. Regarding a crack location, both extrados and intrados cracks are considered. Based on the FE results, closed-form approximations of limit and TES plastic loads are proposed for practical applications, and compared with corresponding solutions for straight pipes.",

keywords = "Circumferential part-through surface crack, Circumferential through-wall crack, Finite element limit analysis, In-plane bending, Limit load, Pipe bend, TES plastic load",

author = "Kim, {Yun Jae} and Kim, {Young Il} and Song, {Tae Kwang}",

note = "Funding Information: This work is supported by KEPRI (R-2004-1-134), funded by MOCIE (Ministry of Commerce Industry and Energy) through a project managed by ETEP (Electric Power Industry Technology Evaluation and Planning).",

year = "2007",

month = mar,

doi = "10.1016/j.engfracmech.2006.07.001",

language = "English",

volume = "74",

pages = "643--668",

journal = "Engineering Fracture Mechanics",

issn = "0013-7944",

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T1 - Finite element plastic loads for circumferential cracked pipe bends under in-plane bending

AU - Kim, Yun Jae

AU - Kim, Young Il

AU - Song, Tae Kwang

N1 - Funding Information: This work is supported by KEPRI (R-2004-1-134), funded by MOCIE (Ministry of Commerce Industry and Energy) through a project managed by ETEP (Electric Power Industry Technology Evaluation and Planning).

PY - 2007/3

Y1 - 2007/3

N2 - This paper proposes plastic loads (limit load and twice-elastic-slope (TES) plastic load) for pipe bends with circumferential through-wall and part-through surface cracks under in-plane bending, based on three-dimensional FE limit analyses. The material is assumed to be elastic-perfectly plastic, and both the geometrically linear (small strain) and nonlinear (large geometry change) effects are considered. Regarding a crack location, both extrados and intrados cracks are considered. Based on the FE results, closed-form approximations of limit and TES plastic loads are proposed for practical applications, and compared with corresponding solutions for straight pipes.

AB - This paper proposes plastic loads (limit load and twice-elastic-slope (TES) plastic load) for pipe bends with circumferential through-wall and part-through surface cracks under in-plane bending, based on three-dimensional FE limit analyses. The material is assumed to be elastic-perfectly plastic, and both the geometrically linear (small strain) and nonlinear (large geometry change) effects are considered. Regarding a crack location, both extrados and intrados cracks are considered. Based on the FE results, closed-form approximations of limit and TES plastic loads are proposed for practical applications, and compared with corresponding solutions for straight pipes.

KW - Circumferential part-through surface crack

KW - Circumferential through-wall crack

KW - Finite element limit analysis

KW - In-plane bending

KW - Limit load

KW - Pipe bend

KW - TES plastic load

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U2 - 10.1016/j.engfracmech.2006.07.001

DO - 10.1016/j.engfracmech.2006.07.001

M3 - Article

AN - SCOPUS:33846136482

SN - 0013-7944

VL - 74

SP - 643

EP - 668

JO - Engineering Fracture Mechanics

JF - Engineering Fracture Mechanics

IS - 5

ER -

Finite element plastic loads for circumferential cracked pipe bends under in-plane bending

Abstract

Keywords

ASJC Scopus subject areas

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