文献类型：期刊文献

英文题名：Surface effects in the deformation of an anisotropic elastic material with nano-sized elliptical hole

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：2013

卷号：52

起止页码：57

外文期刊名：MECHANICS RESEARCH COMMUNICATIONS

收录：;EI(收录号：20133116551709);WOS:【SCI-EXPANDED(收录号:WOS:000324669100009)】；

基金：This work is supported by the National Natural Science Foundation of China (Grant No: 11272121), Innovation Program of Shanghai Municipal Education Commission, China (Grant No: 12ZZ058) and the Natural Sciences and Engineering Research Council of Canada.

语种：英文

外文关键词：Surface energy; Anisotropic elasticity; Stroh formalism; Elliptical hole; Stress concentration

摘要：We examine the effect of surface energy on an anisotropic elastic material weakened by an elliptical hole. A closed-form, full-field solution is derived using the standard Stroh formalism. In particular, explicit expressions for the hoop stress, normal, in-plane tangential and out-of-plane displacement components along the edge of the hole are obtained. These expressions clearly demonstrate the effect of elastic anisotropy of the bulk material on the corresponding field variables. When the material becomes isotropic, the hoop stress agrees with the well-known result in the literature while both the in-plane tangential and out-of-plane displacements vanish and the normal displacement is constant along the entire boundary of the elliptical hole. (C) 2013 Elsevier Ltd. All rights reserved.