Buckling Analysis of Square Composite Plate with Rectangular Cutout

Composite materials are used in aeronautical, automobile, healthcare and marine industries due to their high stiffness, higher strength-to-weight ratio long fatigue life. Thin plate plays vital role manufacturing of engineering structures. Components made from composite often subjected damage while working. Buckling can cause loss stability component which subsequently leads failure the entire structure. This paper deals with effect rectangular cutout on buckling behavior square plate. Cutouts generally for ventilation reduce weight component. study investigates critical load various aspect ratios different stacking sequences. Classical laminated theory (CLPT) is analytical calculations, obtained values compared results FEA carried out ANSYS.