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Self-strain of solids with spherical nanovoids

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1 Author(s)
He, L.H. ; CAS Key Laboratory of Mechanical Behavior and Design of Materials, University of Science and Technology of China, Hefei, Anhui 230026, People’s Republic of China

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We study surface stress-induced self-strain of elastically isotropic solids with nanovoids. When the voids are spherically shaped and of identical size, we show that certain hydrostatic loads applied on the outer surface can create uniform stress and strain fields within such solids. The result is then used to establish an exact link between the self-strain and the effective elastic property of the solid, provided that the voids are distributed such that the solid is statistically homogeneous on macroscopic level.

Published in:

Applied Physics Letters  (Volume:88 ,  Issue: 15 )