Agglomeration effects on electro‐magneto‐thermo elastic behavior of nano‐composite piezoelectric cylinder

Abstract

Agglomeration effect on the electro-magneto-thermo elastic response of a hollow piezoelectric circular cylinder reinforced with carbon nanotubes (CNTs) is the main contribution of present work. The cylinder is subjected to an internal pressure, a distributed temperature field due to steady state heat conduction with convective boundary condition, a magnetic field in axial direction and a constant electric potential difference between its inner and outer surfaces or combination of these loadings. All the equivalent mechanical, thermal and piezoelectric properties of nano-composite cylinder are obtained using Mori-Tanaka model considering agglomeration effects. The governing equation in polarized form is shown to reduce to a second-order ordinary differential equation for the radial displacement. Considering mechanical boundary condition, this differential equation is analytically solved. The electro-magneto-thermomechanical stresses, the electric potential and radial displacement distributions in the structure are discussed in detail. The presented results indicate that the agglomeration and volume percent of CNTs have significant influences on the electro-magneto-thermomechanical behavior of the nano-composite cylinder. POLYM. COMPOS., 39:1594-1603, 2018

Bending and buckling behaviors of heterogeneous temperature-dependent micro annular/circular porous sandwich plates integrated by FGPEM nano-Composite layers

“…Substituting equations (36 and 47) in equation (35), using variational calculus and integrating by part, the governing equations in axial symmetric state can be derived. It is noteworthy that in axial symmetric case, the equation become simpler and some terms are vanished.…”

“…He presented nonlocal theory and studied about the structures in nano scale [42,43]. After Eringen’s studies, the study about small scales effects extended rapidly [44–51]. Ghorbanpour Arani et al.…”

Electro-elastic analysis of functionally graded piezoelectric variable thickness cylindrical shells using a first-order electric potential theory and perturbation technique

“…The 1D exact solution was obtained by the complex Fourier series and the power functions law. Loghman and Parsa (2016) obtained the electro-thermo-magneto-elastic solution for a double layer hollow cylinder whose external layer was FGPM. The exact 1D solution was obtained based on the long cylinder assumption and the solution of differential equations.…”