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Analysis of surface-loaded problem of nonhomogeneous elastic half-plane with surface tension

Zhu, Xinyao, Zhai, Jian-Hui and Xu, Wei (2019) Analysis of surface-loaded problem of nonhomogeneous elastic half-plane with surface tension Mechanics of Materials, 129. pp. 254-264.

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Abstract

Based on the surface elasticity theory, we investigate the effect of surface tension on miniaturized contact problems of an elastic graded half-plane under plane strain and axisymmetric situations. The Fourier sine and cosine transform method is used to derive the solution for the problem under uniform pressure. The results show some interesting features in the distribution of surface elastic fields, which are different from their homogeneous counterparts. The surface Green’s functions of the nonhomogeneous half-plane are finally obtained which are verified using finite element method. The outcome of this study provides us not only as a potential method for precise nanoindentation-based analysis of elastic graded materials, but also as the investigations of surface effect-induced failure in nanomaterials and nano-devices.

Item Type: Article
Divisions : Faculty of Engineering and Physical Sciences > Mechanical Engineering Sciences
Authors :
NameEmailORCID
Zhu, Xinyaoxinyao.zhu@surrey.ac.uk
Zhai, Jian-Hui
Xu, WeiW.Xu@surrey.ac.uk
Date : January 2019
Funders : European Union's Horizon 2020
DOI : 10.1016/j.mechmat.2018.11.008
Copyright Disclaimer : © 2018. This manuscript version is made available under the CC-BY-NC-ND 4.0 license http://creativecommons.org/licenses/by-nc-nd/4.0/
Uncontrolled Keywords : Elastic graded materials; Plane strain; Axisymmetric; Surface effect; Surface tension; Green’s function; Finite element method
Depositing User : Melanie Hughes
Date Deposited : 20 Nov 2018 17:06
Last Modified : 23 Nov 2019 02:08
URI: http://epubs.surrey.ac.uk/id/eprint/849911

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