Self-strain of solids with spherical nanovoids
Self-strain of solids with spherical nanovoids
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DOI：
10.1063/1.2195097
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发表时间：
2006-04
影响因子：
4
通讯作者：
Lei He
中科院分区：
文献类型：
--
作者：
Lei He
我们研究了含纳米孔洞的弹性各向同性固体的表面应力诱导自应变。当空洞是球形的且大小相同时，我们证明了在外表面施加一定的静水压载荷可以在这种固体内产生均匀的应力和应变场。然后，该结果被用来建立固体的自身应变和有效弹性性质之间的精确联系，前提是孔洞的分布使得固体在宏观水平上统计上是均匀的。
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.