Buckling control of concrete beams reinforced with smart nanoparticles using numerical methods

Abstract

This paper deals with the smart buckling control of concrete beams armed by zinc oxide (ZnO) nanoparticles. As it is known, the ZnO nanoparticles are smart, and hence, the concrete beam is subjected to electric field. The structure is rested on elastic foundation with normal and shear elements. Utilising the hyperbolic beam theory (HBT), energy method and Hamilton’s principal, the governing equations are derived. Applying Mori-Tanaka model, the effective properties of the structure are obtained. Based on difference quadrature (DQ) method, the governing equations are solved and the buckling load is derived. The effect of Zno nanoparticles, boundary conditions, external voltage and geometrical parameters of the beam are shown on buckling load of the structure. Numerical results show that the buckling load can be increased with applying negative voltage. Furthermore, increasing the ZnO nanoparticles leads to improve the buckling load.

Keywords:

• Concrete beam
• buckling
• ZnO nanoparticles
• electric field
• numerical method

Disclosure statement

No potential conflict of interest was reported by the author.