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Browse Journals & Magazines > Applied Physics Letters ...> Volume:90 Issue:6 Help

Effect of surface energy on the yield strength of nanoporous materials

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2 Author(s)
Zhang, W.X. ; MOE Key Laboratory for Strength and Vibration, Department of Engineering Mechanics, Xi’an Jiaotong University, Xi’an 710049, China ; Wang, T.J.

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The effect of surface energy on the yield strength of nanoporous materials is investigated in this letter. The conventional micromechanics method is extended to consider the surface effect and an analytical expression of the yield surface of nanoporous materials in a complex stress state is derived. It is seen that surface energy has obvious effect on the overall yield strength of nanoporous materials, and the smaller the nanosized void, the more significant the effect of surface energy. The yield strength of nanoporous materials is size dependent.

Published in:
Applied Physics Letters  (Volume:90 ,  Issue: 6 )

Date of Publication: Feb 2007

Page(s):
063104 - 063104-3
ISSN :
0003-6951
Digital Object Identifier :
10.1063/1.2459115
Product Type:
Journals & Magazines
Date of Current Version :
18 June 2009
Issue Date :
Feb 2007

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