Abstract:
The objective of the current research is to investigate the critical buckling load of fiber reinforced
(FR) plate. The buckling load of an FR plate depends on a variety of variables, including aspect
ratio, thickness of the laminate, fiber orientation of the laminae that make up the laminate, and the
boundary conditions. These variables were related to the buckling load of laminated plates by
analyzing a number of laminated plates using the commercially available ANSYS finite element
software. Among other things, it was found that for the analyzed FR laminated plates simply
supported on all edges, the optimal fiber orientation of the mat layers was ? 45 degrees for all
thicknesses with aspect ratios of 1.0 and 2.0 , but that was not the case for the other boundary
conditions considered. In the case of simple-simple-fixed-fixed, the +30/-30 orientation produce
the highest buckling load for all aspect ratios cases considered; while for free-fixed-fixed-fixed the
+15/-15 did in the majority of the cases. For all cases of the boundary conditions, critical buckling
loads increase with increasing aspect ratio and of course with increasing plate thickness.