文献类型：期刊文献

英文题名：Three-phase piezoelectric inclusions of arbitrary shape with internal uniform electroelastic field

作者：Wang, Xu[1];Zhou, Kun[2]

机构：[1]E China Univ Sci & Technol, Sch Mech & Power Engn, Shanghai 200237, Peoples R China;[2]Nanyang Technol Univ, Sch Mech & Aerosp Engn, Singapore 639798, Singapore

年份：2013

卷号：63

起止页码：23

外文期刊名：INTERNATIONAL JOURNAL OF ENGINEERING SCIENCE

收录：;EI(收录号：20130215874058);WOS:【SCI-EXPANDED(收录号:WOS:000315363000003)】；

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 Agency for Science, Technology and Research, Singapore (SERC Grant No: 112 290 4015). The authors also acknowledge Professor Peter Schiavone at the University of Alberta, Canada for his advice.

语种：英文

外文关键词：Piezoelectric inclusion; Non-elliptical shape; Uniform electroelastic field; Interphase layer; Inverse problem

摘要：We investigate the internal electroelastic field within a three-phase piezoelectric inclusion of arbitrary shape when the piezoelectric matrix is subjected to remote uniform electroelastic loadings. It is observed that in the presence of the intermediate interphase layer, the internal electroelastic field within an inclusion of non-elliptical shape can be conditionally or unconditionally uniform. In order to ensure that the internal electroelastic field is conditionally uniform, the thickness of the interphase layer should be properly designed for given electroelastic constants of the three-phase piezoelectric composite, and the remote uniform electric displacements should be dependent on the applied remote uniform stresses. To ensure an unconditionally uniform internal electroelastic field, the electroelastic constants of the interphase layer can be uniquely determined by given thickness of the interphase layer and given electroelastic constants of both the internal inclusion and the surrounding matrix. Interestingly, our analysis indicates that even in the absence of the interphase layer, the internal electroelastic field within a piezoelectric inclusion of arbitrary shape can still be conditionally uniform if the electroelastic constants of the two-phase composite satisfy a restriction, (C) 2012 Elsevier Ltd. All rights reserved.