RT Journal Article SR Electronic A1 Lairedj, Abdelaziz A1 Bouazza, Mokhtar A1 Amara, Khaled A1 Chabani, Abdelmadjid T1 Behaviors of Simply Supported Cross-Ply Rectangular Symmetric Laminates Plates with Consideration of Prebuckling In-Plane Deformation JF Acta Mechanica Slovaca YR 2015 VO 19 IS 1 SP 18 OP 27 DO 10.21496/ams.2015.002 UL https://www.actamechanica.sk/artkey/ams-201501-0002.php AB This paper addresses the elastic buckling of simply supported cross-ply rectangular symmetric laminates with allowance for the effects of prebuckling in-plane deformation and higher-order strain terms (curvature terms), using the first order shear deformation theory. The governing plate equations are derived by considering the stationary condition for the derived energy functional by applying the calculus of variations. The buckling load of symmetric cross-ply laminated rectangular plates, which are subjected to uniaxial compression, biaxial compression, and biaxial compression and tension, are determined whilst the effects of different parameters, the plate aspect ratio, the relative thickness degrees of material orthotropy and numbers of layers are investigated.