surface stress

We present a continuum formulation to obtain simple expressions demonstrating the effects of surface residual stress and surface elastic constants on extensional and torsional stiffnesses of isotropic circular nanorods. Unlike the case of rectangular nanorods, we show that the stiffnesses of circular nanorods also depend on surface residual stress components. This is attributed to non-zero surface curvature inherent in circular nanorods.

Recently published in JMPS:

<http://dx.doi.org/10.1016/j.jmps.2012.07.009>

Please allow me to note that I have recently published in Philosophical Magazine a paper that presents a general approach to Gibbsian surface thermodynamics that includes a treatment of solid surfaces.  It can be accessed through the following link: 

http://www.informaworld.com/smpp/content~db=all~content=a792987191

Abstract of paper recently accepted for publication in Journal of Applied Physics:

With a shallow chemical etching the roughness with spatial frequency below a critical value grows while the roughness of higher frequency decays.

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