文献类型：期刊文献

英文题名：Two inhomogeneities of irregular shape with internal uniform stress fields interacting with a screw dislocation

作者：Wang, Xu[1];Schiavone, Peter[2]

机构：[1]E 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, Edmonton, AB T6G 1H9, Canada

年份：2016

卷号：344

期号：7

起止页码：532

外文期刊名：COMPTES RENDUS MECANIQUE

收录：;WOS:【SCI-EXPANDED(收录号:WOS:000376795700008)】；

基金：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：Internal uniform field; Two inhomogeneities of irregular shape; Screw dislocation; Anti-plane deformation; Complex variable methods; Conformal mapping

摘要：Using complex variable methods and conformal mapping techniques, we demonstrate rigorously that two inhomogeneities of irregular shape interacting with a screw dislocation can indeed maintain uniform internal stress distributions. Our analysis indicates that while the internal uniform stresses are independent of the existence of the screw dislocation, the shapes of the two inhomogeneities required to achieve this uniformity depend on the Burgers vector, the location of the screw dislocation, and the size of the inhomogeneities. In addition, we find that this uniformity of the internal stress field is achievable also when the two inhomogeneities interact with an arbitrary number of discrete screw dislocations in the matrix. (C) 2016 Academie des sciences. Published by Elsevier Masson SAS. All rights reserved.