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Size-Dependent Elastic Moduli of FCC Crystal Nanofilms
Published online by Cambridge University Press: 01 February 2011
Abstract
A semi-continuum model is constructed to study the size effects on the mechanical properties of face-cubic-center crystal structure nanofilms. Unlike the classical continuum theory, the current model directly takes the discrete nature in the thickness direction into consideration. In-plane and out-plane Poisson's ratios as well as in-plane Young's modulus are investigated with this model. It is found that the values of the Young's modulus and Poisson's ratio depend on the film thickness and approach the respective bulk values asymptotically.
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- Copyright © Materials Research Society 2006