Modified Timoshenko formula for bending of ultrathin strained bilayer films

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Publication Type Journal Article
School or College College of Engineering
Department Materials Science & Engineering
Creator Liu, Feng
Other Author Zang, Ji
Title Modified Timoshenko formula for bending of ultrathin strained bilayer films
Date 2008
Description Mechanical bending of nanoscale thin films can be quite different from that of macroscopic thick films. However, current understanding of mechanical bending of nanoscale thin strained bilayer films is often limited within the Timoshenko model [Timoshenko, J. Opt. Soc. Am. 11, 233 (1925)], which was originally derived for macroscopic thick films. Here, we derive a modified Timoshenko formula by including the prominent effect of surface stress played in the nanofilms, which gives a much better agreement with the experiments than the classical formula.
Type Text
Publisher American Institute of Physics (AIP)
Journal Title Applied Physics Letters
Volume 92
Issue 2
First Page 21905
DOI 10.1063/1.2828043
citatation_issn 36951
Subject Timoshenko formula; Bending theory; Ultrathin films; Strained nanoscale thin films; Nanofilms
Subject LCSH Flexure; Thin films; Nanostructured materials
Language eng
Bibliographic Citation Zang, J., & Liu, F. (2008). Modified Timoshenko formula for bending of ultrathin strained bilayer films. Applied Physics Letters, 92(2), 021905.
Rights Management (c)American Institute of Physics. The following article appeared in Zang, J., & Liu, F., Applied Physics Letters, 92(2), 2008 and may be found at http://dx.doi.org/10.1063/1.2828043
Format Medium application/pdf
Format Extent 247,065 bytes
Identifier ir-main,12122
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Reference URL https://collections.lib.utah.edu/ark:/87278/s6k36c13
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