文献类型：期刊文献

英文题名：In-plane deformations of a nano-sized circular inhomogeneity with interface slip and diffusion

作者：Wang, Xu[1];Wang, Cuiying[1];Schiavone, Peter[2]

机构：[1]East China Univ Sci & Technol, Sch Mech & Power Engn, 130 Meilong Rd, Shanghai 200237, Peoples R China;[2]Univ Alberta, Dept Mech Engn, 10-203 Donadeo Innovat Ctr Engn, Edmonton, AB T6G 1H9, Canada

年份：2016

卷号：108

起止页码：9

外文期刊名：INTERNATIONAL JOURNAL OF ENGINEERING SCIENCE

收录：;EI(收录号：20163602776289);WOS:【SCI-EXPANDED(收录号:WOS:000384782400002)】；

基金：The authors are greatly indebted to a referee for his/her very helpful comments and suggestions. This work is supported by the National Natural Science Foundation of China (Grant No: 11272121) and through a Discovery Grant from the Natural Sciences and Engineering Research Council of Canada (Grant # RGPIN 155112).

语种：英文

外文关键词：Elastic inhomogeneity; Surface elasticity; Rate-dependent slip; Diffusion; Relaxation time

摘要：We consider time-dependent plane strain deformations of a nanosized circular elastic in homogeneity embedded in an infinite elastic matrix subjected to uniform remote stresses. The inhomogeneity and the matrix are each endowed with separate and distinct Gurtin-Murdoch surface elasticities. In addition, both rate-dependent slip and mass transport resulting from stress-driven diffusion occur concurrently on the inhomogeneity/matrix interface. A simple yet effective method is proposed to derive a closed-form solution. The stress distributions in the composite are size-dependent and evolve with two relaxation times. Explicit expressions for the relaxation times depend on four size-dependent parameters: two arising from interface slip and diffusion and two from surface elasticities. The stress field inside the inhomogeneity is spatially non-uniform and time-dependent when the remote loading is non-hydrostatic; conversely, it is uniform, hydrostatic and time independent when the remote loading is hydrostatic. (C) 2016 Elsevier Ltd. All rights reserved.