Empirical formulations for estimation of ultimate strength of continuous stiffened aluminium plates under combined in-plane compression and lateral pressure
Reza Khedmati, M.; Reza Zareei, M.; Rigo, P. (2010). Empirical formulations for estimation of ultimate strength of continuous stiffened aluminium plates under combined in-plane compression and lateral pressure. Thin-Walled Struct. 48(3): 274-289. http://dx.doi.org/10.1016/j.tws.2009.10.001 In: Thin-Walled Structures. Elsevier: London. ISSN 0263-8231; e-ISSN 1879-3223, more |  |
| Author keywords | Ultimate strength; Continuous stiffened aluminium plates; Axial compression; Lateral pressure; Empirical formulation; Heat-affected zone; Finite element method (FEM); Regression analysis |
| Authors | | Top | - Reza Khedmati, M.
- Reza Zareei, M.
- Rigo, P., more
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| Abstract | The present research was undertaken based on the results obtained by the same authors in a sensitivity study on the buckling and ultimate strength of continuous stiffened aluminium plates. Empirical expressions are developed for predicting ultimate compressive strength of welded stiffened aluminium plates used in marine applications under combined in-plane axial compression and different levels of lateral pressure. Existing data of the ultimate compressive strength for stiffened aluminium plates numerically obtained by the authors through the previously performed sensitivity analysis are used for deriving formulations that are expressed as functions of two parameters, namely the plate slenderness ratio and the column (stiffener) slenderness ratio. Regression analysis is used in order to derive the empirical formulations. The formulae implicitly include effects of the weld on initial imperfections, and the heat-affected zone. |
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