Bending capacity of girth-welded circular steel tubes
| Autor: | Chin-Hyung Lee, Kyong-Ho Chang, Jeong-Hoon Baek |
|---|---|
| Rok vydání: | 2012 |
| Předmět: |
Materials science
business.industry Metals and Alloys Building and Construction Bending Welding Structural engineering Girth (geometry) law.invention Buckling Flexural strength Mechanics of Materials Residual stress law Pure bending Composite material Deformation (engineering) business Civil and Structural Engineering |
| Zdroj: | Journal of Constructional Steel Research. 75:142-151 |
| ISSN: | 0143-974X |
| DOI: | 10.1016/j.jcsr.2012.03.019 |
| Popis: | In this paper, the buckling behavior of girth-welded circular steel tubes subjected to bending was investigated by numerical method. Finite element (FE) simulation of the girth welding process was first performed to obtain weld-induced residual stress and deformation employing sequentially coupled three-dimensional (3-D) thermo-mechanical FE formulation. Elastoplastic large-deformation analysis in which the failure mode, the ultimate moment capacity and the moment versus end-rotation behavior of girth-welded circular steel tubes under pure bending were explored incorporating weld-induced geometric imperfection and residual stress was next carried out. Results showed that the flexural behavior of girth-welded circular steel tubes always involves local buckling near the girth weld on the compression side, which significantly affects the moment versus end-rotation response. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
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