On the Thermal Buckling Behavior of Laminated Hybrid Composite Plates Due to Square/Circular Cut-Outs

Abstract

Abstract-Cut-outs like circular, rectangular, elliptical, triangular are generally used in composite structures due to access ports for mechanical and electrical systems, damage inspection, to serve as doors and windows, and sometimes to reduce the overall weight of the structure. In this paper the effects of cut-outs on the thermal buckling behavior of hybrid composite plates in cross-ply and angle-ply laminate are presented. The effects of eccentric cut-out size in different plate aspect ratios and boundary conditions on the thermal buckling behavior of the cross-ply and angle-ply laminated hybrid composite plates are also investigated. Finite element analysis is also performed to calculate thermal buckling temperatures for Kevlar/Epoxy, Boron/Epoxy and E-glass/Epoxy. Several outcomes and behavioral characteristics are discussed. These outcomes include the effects of cut-out size, shape, plate aspect ratio and boundary conditions.

Buckling of laminated composite plate with various shapes of holes under uniform/nonuniform mechanical and thermal loading

“…Avci et al [32] investigated perforated composite plates subjected to temperature increase and examined the effect of fibre angle, lamination scheme, and support conditions on the buckling temperature. Erklig and Yeter [33] analysed laminates with square and circular holes and examined parametric behaviours and they observed that buckling temperatures are significantly affected by boundary conditions. They also found that buckling temperature of rectangular plates having square-shaped hole increases with an increase in hole dimension.…”