Journal of Nanostructures

Journal of Nanostructures

Study the Postbuckling of Hexagonal Piezoelectric Nanowires with Surface Effect

Document Type : Research Paper

Authors
O. Rahmani
M. H. Noroozi Moghaddam
Smart Structures and New Advanced Materials Laboratory, Department of Mechanical Engineering, University of Zanjan, Zanjan
10.7508/jns.2014.02.007
Abstract
Piezoelectric nanobeams having circular, rectangular and hexagonal cross-sections are synthesized and used in various Nano structures; however, piezoelectric nanobeams with hexagonal cross-sections have not been studied in detail. In particular, the physical mechanisms of the surface effect and the role of surface stress, surface elasticity and surface piezoelectricity have not been discussed thoroughly. The present study investigated post-buckling behavior of piezoelectric nanobeams by examining surface effects. The energy method was applied to post-buckling of hexagonal nanobeams and the critical buckling voltage and amplitude are derived analytically from bulk and surface material properties and geometric factors.
Keywords
Postbuckling
energy method
Piezoelectric
Nanowires
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Journal of Nanostructures
Volume 4, Issue 2 - Serial Number 2
Spring 2014
Pages 177-183