Surface Stress Effect on the Nonlocal Biaxial Buckling and Bending Analysis of Polymeric Piezoelectric Nanoplate Reinforced by CNT Using Eshelby-Mori-Tanaka Approach

چکیده مقاله

In this article, the nonlocal biaxial buckling load and bending analysis of polymeric piezoelectric nanoplate reinforced by carbon nanotube (CNT) considering the surface stress effect is presented. This plate is subjected to electro-magneto-mechanical loadings. Eshelby-Mori-Tanaka approach is used for defining the piezoelectric nanoplate material properties. Navier’s type solution is employed to obtain the critical buckling load of polymeric piezoelectric nanoplate for classical plate theory (CPT) and first order shear deformation theory (FSDT). The influences of various parameters on the biaxial nonlocal critical buckling load with respect to the local critical buckling load ratio (  ) of nanoplate are examined. Surface stress effects on the surface biaxial critical buckling load to the nonsurface biaxial critical buckling load ratio (  ) can not be neglected. Moreover, the effect of residual surface stress constant on  is higher than the other surface stress parameters on it.  increases by applying the external voltage and magnetic fields. The nonlocal deflection to local deflection of piezoelectric nanocomposite plate ratio ( ) decreases with an increase in the nonlocal parameter for both theories. And for FSDT,  decreases with an increase in residual stress constant and vice versa for CPT.