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Publications
Li, C.F., Ren, H.L., Zhu, Z.Y. and Guedes Soares, C. (2015), “FEM Analysis on ultimate strength of aluminium stiffended panels with fixed and floating transverse frames”, 34th International Conference on Ocean, Offshore and Arctic Engineering (OMAE 2015), 31 May-5 June, St. John’s, NL, Canada, paper: OMAE2015-41482
The aim of this study was to analyze the ultimate strength of stiffened aluminum panels by non-linear finite element method. A new type of stiffened aluminum alloy panel has been introduced which has fixed longitudinal and alternating floating transverse frames. Based on the material tensile test, material properties of the aluminum alloy were obtained. Then, the simulation method of welding residual stresses and the effect of heat-affected zone are investigated. FEM analysis software Abaqus is used to estimate the ultimate strength of these stiffened panels under axial compression. The results show that: 1) The mechanical imperfections have significant effect on ultimate strength of stiffened panels; 2) residual stresses may have positive effect on ultimate strength; 3) the new stiffened panels also have good performance on ultimate bearing capacities.
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