Surface stress effect on bending resonance of nanowires with different boundary conditions

被引：152
|
作者：
He, Jin [1 ]
Lilley, Carmen M. [1 ]
机构：
[1] Univ Illinois, Dept Mech & Ind Engn, Chicago, IL 60607 USA
来源：
APPLIED PHYSICS LETTERS | 2008年 / 93卷 / 26期
关键词：
bending; Laplace equations; nanowires; Young's modulus;
D O I：
10.1063/1.3050108
中图分类号：
O59 [应用物理学];
学科分类号：
摘要：
The influence of surface stress on the resonance frequencies of bending nanowires was studied by incorporating the generalized Young-Laplace equation into Euler-Bernoulli beam theory. Theoretical solutions are presented for three different boundary conditions. The overall Young's modulus was used to study the surface stress influenced mechanical behavior of bending nanowires and a comparison was made for the overall Young's modulus calculated from nanowires in resonance and static bending. It was found that the overall Young's modulus can be simply related to a nondimensional surface effect factor via empirical formulae.
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页数：3
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