Limit loads for pipe bends under combined pressure and in-plane bending based on finite element limit analysis

Yun Jae Kim; Chang Sik Oh

doi:10.1016/j.ijpvp.2005.11.001

Limit loads for pipe bends under combined pressure and in-plane bending based on finite element limit analysis

Yun Jae Kim, Chang Sik Oh

Department of Mechanical Engineering

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

71 Citations (Scopus)

Abstract

Approximate plastic limit load solutions for pipe bends under combined internal pressure and bending are obtained from detailed three-dimensional (3-D) FE limit analyses based on elastic-perfectly plastic materials with the small geometry change option. The FE results show that existing limit load solutions for pipe bends are lower bounds but can be very different from the present FE results in some cases, particularly for bending. Accordingly closed-form approximations are proposed for pipe bends under combined pressure and in-plane bending based on the FE results.

Original language	English
Pages (from-to)	148-153
Number of pages	6
Journal	International Journal of Pressure Vessels and Piping
Volume	83
Issue number	2
DOIs	https://doi.org/10.1016/j.ijpvp.2005.11.001
Publication status	Published - 2006 Feb

Keywords

Combined pressure and in-plane bending
Finite element limit analysis
Limit load
Pipe bend

ASJC Scopus subject areas

Materials Science(all)
Mechanics of Materials
Mechanical Engineering

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10.1016/j.ijpvp.2005.11.001

Cite this

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title = "Limit loads for pipe bends under combined pressure and in-plane bending based on finite element limit analysis",

abstract = "Approximate plastic limit load solutions for pipe bends under combined internal pressure and bending are obtained from detailed three-dimensional (3-D) FE limit analyses based on elastic-perfectly plastic materials with the small geometry change option. The FE results show that existing limit load solutions for pipe bends are lower bounds but can be very different from the present FE results in some cases, particularly for bending. Accordingly closed-form approximations are proposed for pipe bends under combined pressure and in-plane bending based on the FE results.",

keywords = "Combined pressure and in-plane bending, Finite element limit analysis, Limit load, Pipe bend",

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

note = "Funding Information: This research was performed under the program of Basic Atomic Energy Research Institute (BAERI) which is a part of the Nuclear R&D Programs funded by the Ministry of Science & Technology (MOST) of Korea. Copyright: Copyright 2008 Elsevier B.V., All rights reserved.",

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AU - Kim, Yun Jae

AU - Oh, Chang Sik

N1 - Funding Information: This research was performed under the program of Basic Atomic Energy Research Institute (BAERI) which is a part of the Nuclear R&D Programs funded by the Ministry of Science & Technology (MOST) of Korea. Copyright: Copyright 2008 Elsevier B.V., All rights reserved.

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N2 - Approximate plastic limit load solutions for pipe bends under combined internal pressure and bending are obtained from detailed three-dimensional (3-D) FE limit analyses based on elastic-perfectly plastic materials with the small geometry change option. The FE results show that existing limit load solutions for pipe bends are lower bounds but can be very different from the present FE results in some cases, particularly for bending. Accordingly closed-form approximations are proposed for pipe bends under combined pressure and in-plane bending based on the FE results.

AB - Approximate plastic limit load solutions for pipe bends under combined internal pressure and bending are obtained from detailed three-dimensional (3-D) FE limit analyses based on elastic-perfectly plastic materials with the small geometry change option. The FE results show that existing limit load solutions for pipe bends are lower bounds but can be very different from the present FE results in some cases, particularly for bending. Accordingly closed-form approximations are proposed for pipe bends under combined pressure and in-plane bending based on the FE results.

KW - Combined pressure and in-plane bending

KW - Finite element limit analysis

KW - Limit load

KW - Pipe bend

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Limit loads for pipe bends under combined pressure and in-plane bending based on finite element limit analysis

Abstract

Keywords

ASJC Scopus subject areas

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