Structural Behavior of Telescopic Steel Pipe for a Full-Scale 60 kW Wind Turbine Tower
| Autor: | Maurizio Papia, Giuseppe Campione, F. Cannella |
|---|---|
| Přispěvatelé: | Giuseppe Campione, Francesco Cannella, Maurizio Papia |
| Jazyk: | angličtina |
| Rok vydání: | 2020 |
| Předmět: |
Materials science
· Ovalization Full scale 020101 civil engineering 02 engineering and technology Turbine 0201 civil engineering · Full-scale tests 0203 mechanical engineering Ductility · Metal and composite structures Civil and Structural Engineering business.industry · Buckling Structural engineering Shear-to-moment interaction · Flexural strength Moment (mathematics) Shear (sheet metal) Settore ICAR/09 - Tecnica Delle Costruzioni 020303 mechanical engineering & transports Buckling business Tower Failure mode and effects analysis · Steel pipes |
| Popis: | A simple analytical model, including local effects due to buckling and shear to moment interaction, was developed to pre-dict the load-carrying capacity of CHS tubes under flexure and shear. A finite-element analysis with ABAQUS Code was also conducted for validation of the proposed model. By properly modeling the imperfection effects due to the ovalization of steel tube, a good correlation of the structural response and failure mode was also achieved, and a good correlation with the analytical model was also achieved. Numerical and analytical results were compared with experimental results recently obtained by the author with good agreement. Experimental tests refer to full-scale static test to failure were conducted on 6m length of steel pipe constituting a segment of a telescopic wind tower with a 60-kW wind turbine. The diameter of the circular cross-section of steel pipes was 900mm and the nominal thickness 10mm. Steel grade was S355 J2, according to Eurocode 3. Although local buckling caused slight strength degradation, the reduction due to shear to moment interaction was very significant, while the recorded response showed a good amount of post-buckling ductility although the ovalization of cross-sections. |
| Databáze: | OpenAIRE |
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