文献类型：期刊文献

英文题名：Time-dependent interfacial sliding in nano-fibrous composites under longitudinal shear

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, Donadeo Innovat Ctr Engn 10 203, 9211-116 St NW, Edmonton, AB T6G 1H9, Canada

年份：2016

卷号：75

起止页码：40

外文期刊名：MECHANICS RESEARCH COMMUNICATIONS

收录：;EI(收录号：20162302472134);WOS:【SCI-EXPANDED(收录号:WOS:000380972600005)】；

基金：The authors thank two reviewers and the editor for valuable comments and suggestions which have improved the paper. 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：Nano-fiber; Surface elasticity; Time-dependent sliding; Characteristic relaxation time; Size-dependency

摘要：We use complex variable methods to analyze time-dependent deformations of an isolated elastic nano fiber embedded in an infinite elastic matrix under longitudinal shear subjected to uniform stress at infinity. In order to incorporate nanoscale size-effects into our continuum-based model, the nano fiber and the matrix are each endowed with separate and distinct surface elasticities described by the Gurtin-Murdoch model. The fiber/matrix interface is allowed to slide via a diffusion-controlled mechanism. We show that the characteristic relaxation time and time-dependent stress distribution in the composite can be described completely by three size-dependent parameters and a size-independent mismatch parameter. Further, we note that the internal stress field is spatially uniform yet size- and time-dependent. Finally, we obtain the effective anelastic and size-dependent shear modulus of the fibrous composite using the mean-field method of Mod-Tanaka. (C) 2016 Elsevier Ltd. All rights reserved.