Comparison of plastic loads for elbows with experimental data

Jae Jun Han, Kuk Hee Lee, Yun Jae Kim, Peter J. Budden, Tae Eun Jin

Research output: Chapter in Book/Report/Conference proceedingConference contribution


Finding plastic (limit) loads for elbows under various loading conditions such as in-plane bending and out-of-plane bending is not an easy task due to complexities involved in plastic analyses. Considering complexities involved in plastic limit analysis of elbow, deriving analytical solutions of plastic loads for elbows would be extremely difficult. So, recently the limit analysis using finite element program has been widely adopted. Based on extensive and systematic FE limit analyses using elastic-perfectly plastic materials, closed-form solutions of plastic loads for defect-free elbows under in-plane closing, in-plane opening and out-of-plane bending were presented. This paper summarizes the well-known criteria for finding plastic(limit) loads proposed by ASME BPVC Sec.III [1], Zahoor [4], Chattopadhyay et al. [17] and Kim et al. [19] The purpose of this paper is to integrate and improve the proposed solutions by Kim et al. Also, comparison results with published experimental data are presented. From these results, the pros and cons of each criterion for finding plastic(limit) loads for elbows are discussed.

Original languageEnglish
Title of host publicationASME 2011 Pressure Vessels and Piping Conference, PVP 2011
Number of pages9
Publication statusPublished - 2011 Dec 1
Externally publishedYes
EventASME 2011 Pressure Vessels and Piping Conference, PVP 2011 - Baltimore, MD, United States
Duration: 2011 Jul 172011 Jul 21

Publication series

NameAmerican Society of Mechanical Engineers, Pressure Vessels and Piping Division (Publication) PVP
ISSN (Print)0277-027X


ConferenceASME 2011 Pressure Vessels and Piping Conference, PVP 2011
Country/TerritoryUnited States
CityBaltimore, MD

ASJC Scopus subject areas

  • Mechanical Engineering


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