Buckling Behavior of Functionally Graded Nano Clay-Reinforced Composite Beams

This paper investigates the buckling behavior of functionally graded nanocomposite beams reinforced by nano clay. Accordingly, the specimens were prepared, and the experimental tensile and buckling tests were carried out. The Young s modulus of epoxy/clay nanocomposite for functionally graded and uniformly distribution nano clay are estimated through a model based on the genetic algorithm approach. Also, the first-order shear deformation beam theory is applied for a simply supported beam, and the governing equations are derived using the Hamilton principle. Moreover, the influence of nanoparticles on the buckling load of a beam is presented. A comparison study is conducted to assess the efficacy and accuracy of the present analysis. A comparison of theoretical analysis with the experimental results demonstrated high accuracy.