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Effect of internal pressure and shape imperfections on plastic loads of pipe bends under in-plane closing momentPublished in
2013
Volume: 105
Pages: 1 - 15
The influence of internal pressure and shape imperfections of pipe bends on collapse load was investigated under in-plane closing bending moment using finite element limit analysis based on elastic-perfectly plastic material considering geometric nonlinearity. Twice-elastic-slope method was used to obtain the collapse load. For each model, at a certain internal pressure, the collapse moment was found to be the same for the pipe bends with oval and circular cross sections, at any other pressure the effect of ovality is significant. The thinning produces negligible effect on collapse load. Closed-form solutions are proposed to determine the collapse moment of pipe bend. © 2013 Elsevier Ltd.
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About the journal
| Journal | Engineering Fracture Mechanics |
|---|---|
| ISSN | 00137944 |
Authors (1)
Christo Michael T- Suitability of assumed cross sections to include ovality in the limit analysis of pipe bends under in-plane closing moment and internal pressure
- Effect of internal pressure and shape imperfections on plastic loads of pipe bends under in-plane closing moment
- Comparison of plastic limit and collapse loads in pipe bends with shape imperfections under in-plane bending and an internal pressure
- Collapse load of pipe bends with assumed and actual cross sections under in-plane and out-of-plane moments
