Buckling behaviour of clamped-clamped rectangular thin plates composite materials for a Zig-Zag Model

الملخص EN

This paper focused mainly on the behavior buckling for the rectangular laminated plates made from three types of composite materials of a zig-zag model such as E-glass fiber / polyester (GFRP), carbon fiber / polyester (CFRP) and hybrid fibers / polyester (HFRP), under static buckling load and at room temperature (25Co).

All the effects of plate determinants on the buckling load were studied for one type of a boundary condition, which was fixed on both sides, is clamped-clamped and free-free in other sides.

The buckling analysis of these plates has been studied numerically and experimentally with different aspect ratio and constant thickness ratio.

The experimental part is including the manufacture of composite materials laminated plates of a zig-zag model and determine the mechanical properties such as modulus of elasticity, yield stress, ultimate tensile strength and Poisson's ratio by tensile test for three types of composite materials such as GFRP, CFRP, and HFRP.

The experiments of shear stress test was used to determine whether the layers would be the plates is delaminate layers during buckling test or not into the three types of composite materials samples.

Experiments were also used to find the critical buckling load and maximum buckling deflection for clamped-clamped rectangular laminated plates of three types of composite materials for a zig-zag model with the effect of aspect ratios under uniformly distributed static compression load.