Abstract
The work presents the original conception of a thin-walled plate element with the central rectangular cut-out for use as an elastic or load-bearing element, subjected to uniform compression. Plates were simply supported on shorter edges, made of composite with high strength properties. The analysis aimed to choose a laminate layer configuration that would ensure the lowest buckling form about bending-torsional character, ensuring stable construction work in the post-critical range. The influence of cut-out geometrical parameters and the angle of fibre layout on the value of the critical load of the structure was measured. To develop a discrete model and to perform numerical calculations the commercial ABAQUS program was used.
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