This paper deals with the electro-elastic coupling interaction between a piezoelectric screw dislocation which is located inside the elliptical inhomogeneity and an electrically conductive confocal rigid line under remote anti-plane shear stresses and in-plane electrical loads in piezoelectric composite material. The analytical-functions of the complex potentials, stress fields and the image force acting on the piezoelectric screw dislocation are obtained based on the principle of conformal mapping, the method of series expansion, the technical of analytic continuation and the analysis of singularity of complex potentials. The rigid line and the piezoelectric material property combinations upon the image force and the equilibrium position of the dislocation are discussed in detail by the numerical computation.
Chunzhi Jiang,1,2,3, ) Chao Xie,1,2 Youwen Liu,1,2 and Xin Zeng1,2 1)State Key Laboratory of Advanced Design and Manufacturing for Vehicle Body, Hunan University, Changsha 410082, China 2)College of Mechanical and Vehicle Engineering, Hunan University, Changsha 410082, China 3)Department of Physics and Electronic Information Engineering, Xiangnan University, Chenzhou 423000, China
<正>The explicit expressions for critical stress intensity factors are derived for edge dislocation emission fr...
Fang QH~*,Liu Y~*,Huang BY~*,Liu YW~+ * State Key Laboratory for Powder Metallurgy,Central South University,Changsha 410083,China, + College of Mechanics and Aerospace,Hunan University, Changsha 410082,China
<正>A theoretical model is proposed for elastic stress relaxation of a buried strained nanoscale cylindrical in...
Liu YW~*,Fang QH~*,Wen PH~+ * College of Mechanics and Aerospace,Hunan University, Changsha 410082,China + School of Engineering and Material Sciences,Queen Mary,University of London,London,E1 4NS,UK
