Effect of internal pressure on plastic loads of 90° elbows with circumferential part-through surface cracks under in-plane bending

Seok Pyo Hong; Jong Hyun Kim; Yun Jae Kim; P. J. Budden

doi:10.1016/j.engfracmech.2009.11.013

Effect of internal pressure on plastic loads of 90° elbows with circumferential part-through surface cracks under in-plane bending

Seok Pyo Hong, Jong Hyun Kim, Yun Jae Kim, P. J. Budden

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

18 Citations (Scopus)

Abstract

This paper quantifies the effect of internal pressure on plastic loads for elbows with circumferential through-wall and constant-depth part-through surface cracks under in-plane bending. Results are based on FE limit analyses using elastic-perfectly plastic materials and the non-linear geometry option. It is found that, for larger values of r/t, the pressure effect on plastic loads is more pronounced and plastic loads for combined loading cases could be much higher than those for pure bending cases. Full FE data of plastic loads are tabulated, and effects of crack geometries on interaction curves are discussed.

Original language	English
Pages (from-to)	577-596
Number of pages	20
Journal	Engineering Fracture Mechanics
Volume	77
Issue number	4
DOIs	https://doi.org/10.1016/j.engfracmech.2009.11.013
Publication status	Published - 2010 Mar

Bibliographical note

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

Keywords

Circumferential crack
Combined pressure and in-plane bending
Elbow
Finite element limit analysis
Plastic load

ASJC Scopus subject areas

General Materials Science
Mechanics of Materials
Mechanical Engineering

Access to Document

10.1016/j.engfracmech.2009.11.013

Cite this

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title = "Effect of internal pressure on plastic loads of 90° elbows with circumferential part-through surface cracks under in-plane bending",

abstract = "This paper quantifies the effect of internal pressure on plastic loads for elbows with circumferential through-wall and constant-depth part-through surface cracks under in-plane bending. Results are based on FE limit analyses using elastic-perfectly plastic materials and the non-linear geometry option. It is found that, for larger values of r/t, the pressure effect on plastic loads is more pronounced and plastic loads for combined loading cases could be much higher than those for pure bending cases. Full FE data of plastic loads are tabulated, and effects of crack geometries on interaction curves are discussed.",

keywords = "Circumferential crack, Combined pressure and in-plane bending, Elbow, Finite element limit analysis, Plastic load",

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

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AU - Kim, Yun Jae

AU - Budden, P. J.

N1 - Funding Information: This research was performed under programmes of the Basic Atomic Energy Research Institute and Engineering Research Center (No. 2009-0063170 ), funded by the Korea Science & Engineering Foundation .

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N2 - This paper quantifies the effect of internal pressure on plastic loads for elbows with circumferential through-wall and constant-depth part-through surface cracks under in-plane bending. Results are based on FE limit analyses using elastic-perfectly plastic materials and the non-linear geometry option. It is found that, for larger values of r/t, the pressure effect on plastic loads is more pronounced and plastic loads for combined loading cases could be much higher than those for pure bending cases. Full FE data of plastic loads are tabulated, and effects of crack geometries on interaction curves are discussed.

AB - This paper quantifies the effect of internal pressure on plastic loads for elbows with circumferential through-wall and constant-depth part-through surface cracks under in-plane bending. Results are based on FE limit analyses using elastic-perfectly plastic materials and the non-linear geometry option. It is found that, for larger values of r/t, the pressure effect on plastic loads is more pronounced and plastic loads for combined loading cases could be much higher than those for pure bending cases. Full FE data of plastic loads are tabulated, and effects of crack geometries on interaction curves are discussed.

KW - Circumferential crack

KW - Combined pressure and in-plane bending

KW - Elbow

KW - Finite element limit analysis

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SN - 0013-7944

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ER -

Effect of internal pressure on plastic loads of 90° elbows with circumferential part-through surface cracks under in-plane bending

Abstract

Bibliographical note

Keywords

ASJC Scopus subject areas

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