文献类型：期刊文献

英文题名：Novel cloaking lamellar structures for a screw dislocation dipole, a circular Eshelby inclusion and a concentrated couple: Novel Cloaking Lamellar Structures

作者：Wang, Xu[1]; Schiavone, Peter[2]

机构：[1] School of Mechanical and Power Engineering, East China University of Science and Technology, 130 Meilong Road, Shanghai, 200237, China; [2] Department of Mechanical Engineering, University of Alberta, 10-203 Donadeo Innovation Centre for Engineering, Edmonton, AB, T6G 1H9, Canada

年份：2020

卷号：476

期号：2241

外文期刊名：Proceedings of the Royal Society A: Mathematical, Physical and Engineering Sciences

收录：EI(收录号：20204309393438)

语种：英文

外文关键词：Concentration (process) - Screw dislocations - Elasticity - Screws - Lamellar structures

摘要：Using conformal mapping techniques, we design novel lamellar structures which cloak the influence of any one of a screw dislocation dipole, a circular Eshelby inclusion or a concentrated couple. The lamellar structure is composed of two half-planes bonded through a middle coating with a variable thickness within which is located either the dislocation dipole, the circular Eshelby inclusion or the concentrated couple. The Eshelby inclusion undergoes either uniform anti-plane eigenstrains or uniform in-plane volumetric eigenstrains. As a result, the influence of any one of the dislocation dipole, the circular Eshelby inclusion or the concentrated couple is cloaked in that their presence will not disturb the prescribed uniform stress fields in both surrounding half-planes. ? 2020 The Author(s).