Buckling effect investigation of hybrid laminated composite plates

In this study, laminated hybrid composite plates have been produced using different combinations of Carbon, S-glass and Aramid fibers with epoxy resin (as a matrix) and effects of fiber types and their combinations on the buckling and lateral buckling have been investigated. Hybrid plates have been produced using vacuum supported production unit (has been designed and produced). The hybrid plates are prepared having [(0/90)3]s, [(30/-60)3]s, [(45/-45)3]s and [(0/90)6]us symmetrical and unsymmetrical ply orientations. Buckling and lateral buckling test specimens have been prepared from produced hybrid plates and buckling and lateral buckling characteristics of produced hybrid composite plates have been determined. Comparisons of different hybrid configurations are performed to see effects of various combinations of fibers on buckling and lateral bucking. Hybrid configurations which have the highest and the smallest buckling and lateral buckling strength are determined. Numerical studies have been performed using ANSYS finite element program. A parametric study is performed to see effects of various parameters such as hybrid plate thickness, plate aspect ratio, cutout type, size and location of cutouts are examined. Square, circular, triangular and elliptical cutouts are used during the analyses.