Abstract
The present work presents plastic limit load solutions for thin-walled branch junctions under internal pressure and in-plane bending, based on detailed three-dimensional (3-D) finite element (FE) limit analyses using elastic-perfectly plastic materials. To assure reliability of the FE limit loads, modelling issues are addressed first, such as the effect of kinematic boundary conditions and branch junction geometries on the FE limit loads. Then the FE limit loads for branch junctions under internal pressure and in-plane bending are compared with existing limit load solutions, and new limit load solutions, improving the accuracy, are proposed based on the FE results. The proposed solutions are valid for ratios of the branch-to-run pipe radius and thickness from 0.4 to 1.0, and the mean radius-to-thickness ratio of the run pipe from 10.0 to 20.0.
Original language | English |
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Pages (from-to) | 645-653 |
Number of pages | 9 |
Journal | International Journal of Pressure Vessels and Piping |
Volume | 83 |
Issue number | 9 |
DOIs | |
Publication status | Published - 2006 Sept |
Bibliographical note
Funding Information:This research is performed under the programme of Basic Atomic Energy Research Institute (BAERI), a part of the Nuclear R&D Programs funded by the Ministry of Science & Technology (MOST) of Korea, and under the programme of the Brain Korea 21 Project in 2006.
Copyright:
Copyright 2009 Elsevier B.V., All rights reserved.
Keywords
- Branch junction
- Finite element analysis
- In-plane bending
- Internal pressure
- Limit load
ASJC Scopus subject areas
- General Materials Science
- Mechanics of Materials
- Mechanical Engineering