Investigation of the vdW Force-Induced Instability in Nano-scale Actuators Fabricated form Cylindrical Nanowires
Journal Title: Journal of Applied and Computational Mechanics - Year 2016, Vol 2, Issue 1
Abstract
The presence of van der Waals (vdW) force can lead to mechanical instability in freestanding nano-scale actuators. Most of the previous researches in this area have exclusively focused on modeling the instability in actuators with one actuating components. While, less attention has been paid to actuators consist of two actuating components. Herein, the effect of the vdW force on the instability of freestanding actuators with two parallel actuating components is investigated. Conventional configurations including cantilever and double-clamped geometries are investigated. A continuum mechanics theory in conjunction with Euler-beam model is applied to obtain governing equations of the systems. The nonlinear governing equations of the actuators are solved using two different approaches, i.e. the modified Adomian decomposition and the finite difference method. The maximum length of the nanowire and minimum initial gap which prevents the instability is computed.
Authors and Affiliations
Rahman Soroush, Alireza Yekrangi
Keywords
Related Articles
- EP ID EP178275
- DOI 10.22055/jacm.2016.12265
- Views 117
- Downloads 0
Buckling Analysis of a Micro Composite Plate with Nano Coating Based on the Modified Couple Stress Theory
The present study investigates the buckling of a thick sandwich plate under the biaxial non-uniform compression using the modified couple stress theory with various boundary conditions. For this purpose, the top and bott...
Buckling and Vibration Analysis of Tapered Circular Nano Plate
In this paper, buckling and free vibration analysis of a circular tapered nanoplate subjected to in-plane forces were studied. The linear variation of the plate thickness was considered in radial direction. Nonlocal elas...
Uniaxial buckling analysis comparison of nanoplate and nanocomposite plate with central square cut out using domain decomposition method
A comparison of buckling analysis of the nanoplate and nanocomposite plate with central square hole embedded in Winkler foundation is presented in this article. In order to enhance mechanical properties of nanoplate with...
Bending Analysis of Thick Isotropic Plates by Using 5th Order Shear Deformation Theory
A 5th order shear deformation theory considering transverse shear deformation effect as well as transverse normal strain deformation effect is presented for static flexure analysis of simply supported isotropic plate....
Reliability analysis of nanocomposite beams-reinforced by CNTs under buckling forces using the conjugate HL-RF
In this paper, the nonlinear conjugate map based on the conjugate Hasofer-Lind and Rackwitz- Fiessler (CHL-RF) method is applied to evaluate the reliability index using first order reliability method of the embedded noan...