文献类型：期刊文献

英文题名：A screw dislocation interacting with a bimaterial interface incorporating surface strain gradient elasticity

作者：Wang, Xu[1];Schiavone, Peter[2]

机构：[1]E China Univ Sci & Technol, Sch Mech & Power Engn, Shanghai 200237, Peoples R China;[2]Univ Alberta, Dept Mech Engn, Edmonton, AB T6G 2G8, Canada

年份：2015

卷号：53

起止页码：254

外文期刊名：EUROPEAN JOURNAL OF MECHANICS A-SOLIDS

收录：;EI(收录号：20152500942283);WOS:【SCI-EXPANDED(收录号:WOS:000358809000022)】；

基金：One reviewer's comments and suggestions are highly appreciated. 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：Surface strain gradient elasticity; Screw dislocation; Image force

摘要：We present an analytical solution in terms of the exponential integral of the problem associated with the interaction of a screw dislocation near a bimaterial interface incorporating surface strain gradient elasticity. Three intrinsic material lengths are identified as a result of the introduction of the surface strain gradient elasticity for the interface. The size-dependent image force acting on the screw dislocation is also obtained. The stiffening effect of the interface can be clearly seen from the image force expression. (C) 2015 Elsevier Masson SAS. All rights reserved.