The paper deals with buckling and post-buckling behaviour of thin-walled glass reinforced aluminium laminate (GLARE) members subjected to axial loading. Different open cross-section profiles were prepared by autoclave technique that provided a high-quality manufacturing. Symmetrical 3/2 lay-ups were analysed wherein 7 stacking sequences were distinguished based on the fibres alignment in the composite layer. Composite specimens were axially compressed in laboratory tests by means of static testing unit that provided displacement control loading. The behaviour of thin-walled GLARE members was investigated with main focus on post-buckling response together with various failure modes. First Ply Failure (FPF) analysis was carried out simultaneously by Tsai-Wu, Hashin and Puck failure criteria in order to detect a first failure occurrence. Numerical analysis included also an attempt to estimate particular regions of laminate's damage in post-buckling state. Predicted collapsed mode shapes of GLARE members were found to be in a good agreement with experimental results.

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