STUDYING THE EFFECT OF TEMPERATURE ON THE BUCKLING LOAD OF LAMINATED COMPOSITE PLATE UNDER DIFFERENT BOUNDARY CONDITIONS

Abstract

ABSTRACT In this study, effect of temperature, aspect ratio, number of layers and boundary conditions oncritical buckling load of composite laminated plate was investigated numerically. Six differentboundary conditions: (SSSS, SSFC, SSFS, SSFF, SSCC and CCFF), three temperatures (40C, 60Cand 80C) and four aspect ratios (1, 1.3, 1.5 and 2) would consider. These variables were analyzedwith different types of laminated plate (unidirectional, cross - ply and angle - ply). The thickness ofthe plate was changed by increasing the number of layers. The results showed that in the case of (a/b = 1 and θ = 0), and the temperature changed from(40C) to (80C), the maximum value of critical buckling load dropped by about (53 %) for (CCFF),while the minimum value of critical buckling load dropped by about (63 %) for (SSCC). Also, it was found that the maximum value of critical buckling load dropped by about (60 %) atthe ply orientation (0/0) and (20/-20) at a/b = 1 and CCFF, while the minimum value drops byabout (64 %) at the ply orientation (0/0), a/b = 1 and SSCC as the temperature changed from 40C to80C.