Elastic buckling of rectangular plates under linearly varying in-plane normal load with a circular cutout

Elastic buckling of thin plates with holes in compression or bending

“…Recent thin shell finite element research on the elastic buckling of simply-supported rectangular plates with multiple holes has demonstrated that the presence of holes can either decrease or increase the critical elastic buckling stress and change the length and quantity of buckled half-waves [9][10][11][12][13]. The elastic buckling influence depends upon the quantity of hole material removed relative to the size of the plate, and the hole spacing.…”

Towards the Design of a Multispar Composite Wing

“…Furthermore, topology optimization is frequently employed to determine the optimum location of certain structural components under static and aeroelastic loads [8,9]. Additionally, a lot of work has been accomplished for the solution of local structural problems, e.g., buckling issues or lay-up optimization [10][11][12][13][14][15][16][17], aeroelasticity, flutter [18], local optimization of panels or areas with cut-outs [19][20][21] for obtaining lighter designs. The aforementioned studies refer to a 2-spar arrangement only and to some specific structural problems, while the advantages that can be obtained by accommodating additional spar (more than two) in the wingbox as well as the design methodology that has to be followed is not exhaustively covered.…”

A Parametric study on the effect of elliptical cutouts for buckling behavior of composite plates under non-uniform edge loads

“…Narayana et al (2014); Rajanna et al (2017Rajanna et al ( , 2018; Abolghasemi et al (2019) studied the effect of linearly varying edge loads on the stability of composite plates with a circular or square cutout. Aydin Komur et al (2008) and Chandra et al (2020aChandra et al ( , 2020bChandra et al ( , 2021 analysed the buckling behaviour of composite laminate under non-uniform varying in-plane compressive loads with circular cutouts.…”