The Effects of Surface and Initial Stresses on the Bending Stiffness of Nanowires

Zhu, Hanxing ORCID: https://orcid.org/0000-0002-3209-6831 2008. The Effects of Surface and Initial Stresses on the Bending Stiffness of Nanowires. Nanotechnology 19 (40) , 405703. 10.1088/0957-4484/19/40/405703

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Abstract

A simple closed-form analytic solution has been obtained for the effect of initial residual stress on the bending stiffness and hence the natural frequency of a coaxial core–shell nanowire. The result obtained also applies for a pre-stressed macro core–shell structure or a simple nanowire. The relative effect of the initial residual stress is generally limited to the range of the material yield strain. The effect of the surface elasticity on the bending stiffness of a nanowire reduces with the increase in the diameter, but the initial surface stress effect can be retained for a nanowire or microwire at a constant level of up to the limit of elastic strain if it can be controlled, for example by the application of an electrical potential.

Item Type:	Article
Date Type:	Publication
Status:	Published
Schools:	Engineering
Subjects:	T Technology > TA Engineering (General). Civil engineering (General)
Publisher:	Institute of Physics
ISSN:	0957-4484
Last Modified:	17 Oct 2022 09:45
URI:	https://orca.cardiff.ac.uk/id/eprint/5491

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