The Effects of Various Cut-Out Areas, Stacking Sequences And Fillers on The Buckling Loads of Composite Plates

The aim of this study is to investigate the effects of cut-out shapes, cut-out areas, stacking sequences and fillers on the critical buckling load of laminated composite plates. The numerical analysis has been carried out on the composites with and without cut-out shapes under clamped-clamped boundary condition. For this purpose, two types of cut–out shapes are considered. The first type of cut-out shapes is chosen as circle, square, rhombus and hexagon and the second type of cut–out shapes is rectangle and ellipse. For both types, the effects of diameter or width of the cut-out shapes on the buckling loads are compared with both each other and uncut-out. Moreover, the cross-sectional areas of the cut-out shapes are kept constant to see the cross-sectional area effect. The effects of the stacking sequences the most preferred in the market on them are also investigated. In addition, the critical buckling loads of composites filled with various ceramic particles (SiC: Silicon Carbide, Al2O3: Aluminum Oxide, B4C: Boron Carbide) are compared with those of the neat composite plates. The results are indicated that the shape and area of cut-out, stacking sequences, fillers affects quietly the critical buckling load.