Post-bucking of angle-ply laminated plates under thermal loading

Notionsa. b, h Plate dimensionsL', -. 1- mid-plane displacement componentsu- v- Ic dboensionless mid-plane displacement componentsVy., ac'~ slOPeS in xo and gi plane, ropectivelyJll, N number of terms in Cheby-shev series in x and y directions, respectivelyCCCC all edges clampedSSSS all edges simply supportedCCCS three edges (x = fi and y = 1) clamped and one (y = --1) simply supportedCCSS two edges (x = 11) clamped and two (y = fi) simply supportedCSSS one edge (x = --1) clamped …

Post-bucking of angle-ply laminated plates under thermal loading

The present investigation deals with the post buckling analysis of the moderately thick angle-ply laminated composite rectangular plates under in-plane uniform temperature induced loading. von Karman type geometrical nonlinearity and first order shear deformation theory are employed in the formulation of the problem. Nonlinear governing differential equa- tions of equilibrium are linearized by quadratic extrapolation technique and resulting linear differential equations are solved iteratively, using Chebyshev polynomials. The boundary con- ditions consisting of clamped. simply supported and their combinations are considered. An incremental iterative approach is employed to estimate the critical/buckling temperatures. The effects of b/a, a/h, boundary conditions, Iamination scheme, Young's moduli ratio and ratio of coefficients of thermal expansion on post buckling behaviour are investigated.