Abstract

In this research, the analytical solution of the general equation of bucking behaviors of composite plate is investigation. The composite materials studied are isotropic hyper composite materials plate combined from three materials as reinforcement powder, mat or short reinforcement fiber and resin materials. The results evaluated are the buckling load of isotropic hyper composite simply supported plate with different aspect ratio of plate ( ), various volume fraction of reinforcement powder and fiber, and different reinforcement and resin materials types. The theoretical results evaluated compare with numerical results evaluated with finite element method by using Ansys program ver. 14, where, the compare between the theoretical and numerical results shown a good agreement with maximum error about (2.7%). The results shown that the buckling load of plate increasing with increase of the reinforcement powder and the buckling load non effect with the powder reinforcements types. Also, the results shown that the buckling load increases with increase the mat or short reinforcement fiber more than the increases of the buckling load of composite plate with increase of powder reinforcement. And, the buckling load increasing with increase the modulus of elasticity of resin materials types used.