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@article{Dai:2025:10.1016/j.istruc.2025.110335,
author = {Dai, R and Gardner, L and Wadee, MA},
doi = {10.1016/j.istruc.2025.110335},
journal = {Structures},
title = {Stability and design of fixed-ended stainless steel unequal-leg angle section columns},
url = {http://dx.doi.org/10.1016/j.istruc.2025.110335},
volume = {82},
year = {2025}
}
TY - JOUR
AB - The stability and design of fixed-ended stainless steel unequal-leg angle section members subjected to axial compression are studied herein. The critical buckling behaviour is first described; existing experimental data on stainless steel and aluminium alloy unequal-leg angle section columns collected from the literature are then employed to validate nonlinear finite element models developed within the commercial package ABAQUS. A comprehensive numerical parametric study is subsequently conducted considering members made from the three main families of stainless steel (austenitic, ferritic and duplex) with a broad spectrum of geometric configurations and slenderness values. The behaviour and load-carrying capacity of the studied columns are shown to depend not only on the global slenderness, but also on the ratio of the elastic torsional-flexural to minor-axis flexural buckling loads. The collected experimental data and generated numerical results are employed to evaluate the ultimate resistance predictions given by the current Eurocode 3 design provisions, revealing an excessive level of conservatism, particularly for cases where torsional-flexural buckling is dominant. A new design approach for fixed-ended stainless steel unequal-leg angle section columns, suitable for incorporation into future revisions of Eurocode 3, is subsequently proposed, reflecting the aforementioned observations. The proposed approach significantly improves the accuracy and consistency of the resistance predictions compared to the current design provisions. Finally, a reliability analysis is conducted following the EN 1990 procedure, resulting in a recommended partial safety factor of 1.1.
AU - Dai,R
AU - Gardner,L
AU - Wadee,MA
DO - 10.1016/j.istruc.2025.110335
PY - 2025///
SN - 2352-0124
TI - Stability and design of fixed-ended stainless steel unequal-leg angle section columns
T2 - Structures
UR - http://dx.doi.org/10.1016/j.istruc.2025.110335
UR - https://www.sciencedirect.com/science/article/pii/S2352012425021502?via%3Dihub
VL - 82
ER -