Investigation of Buckling Load of Smart Compressive Members Using Genetic Programming

In this paper, load and buckling mode of a smart column are presented. The theoretical model is a three-layer piezoelectric composite beam that behaves as an axial actuating mechanism. This actuator consists of an elastic core sandwiched between two piezoelectric active outer layers. The piezoelectric layers are polarized transversely, i.e., the polarization vector is parallel to the applied electric field intensity vector. The finite element models of smart composite are derived by ANSYS. Then, numerical buckling analysis results of composite column are used to train of Genetic programming (GP) intelligent system. Finally, a mathematic formulation is presented for calculation of load and buckling mode of smart column using GP.