Author/Authors :
Malekzadeh Fard, Keramat Malek Ashtar University of Technology, Tehran, Iran , Khajehdehi Kavanroodi, Mehdi Department of Mechanical Engineering - Semnan University, Semnan, Semnan, Iran , Malek-Mohammadi, Hosein Department of Mechanical Engineering - Bu-Ali Sina University, Hamedan, Hamedan, Iran , Pourmoayed, Ali Department of Mechanical Engineering - Khatmol Anbia Air Defense, Tehran, Iran
Abstract :
In this article, the vibration and buckling of a double-layer Graphene sheet (DLGS) coupled with a piezoelectric nanoplate through an elastic medium (Pasternak and Winkler models) are investigated. DLGS are subjected to biaxial in-plane forces and van der Waals force existing between each layer. Polyvinylidene fluoride (PVDF) piezoelectric nanoplate is subjected to an external electric potential. For the sake of this study, sinusoidal shear deformation theory of orthotropic plate expanded with Eringen’s nonlocal theory is selected. The results indicate that nondimensional frequency and nondimensional critical buckling load rise when the ratio of width to thickness increases. Furthermore, incrementing the effect of elastic medium parameter results in increasing the stiffness of the system and, consequently, rising nondimensional frequency and critical buckling load.
Keywords :
Double-Layer Graphene Sheets , Piezoelectric Nanoplate , Elastic Medium , Sinusoidal Shear Deformation Theory , Nonlocal Piezoelasticity Theory
