A Piezoelectric Screw Dislocation Interacting with an Elliptical Piezoelectric Inhomogeneity Containing a Confocal Elliptical Rigid Core

• 作者: 刘又文 蒋纯志 谢超
• 来源期刊: 理论物理通讯：英文版
• 学科: 工学
• 关键词: 不均匀性 螺型位错 椭圆形 压电 刚性 共焦 电力负荷 纵向剪切
• 年，卷（期）: 2011,（10）
• 页码范围: 774-778
• 页数: 5页
• 分类号: TB33|TU245.2
• 语种: 英文

摘要

The electro-elastic interaction between a piezoelectric screw dislocation and an elliptical piezoelectric inhomogeneity, which contains an electrically conductive confocal elliptical rigid core under remote anti-plane shear stresses and in-plane electrical load is dealt with. The anaJytical solutions to the elastic field and the electric field, the interracial stress fields of inhomogeneity and matrix under longitudinal shear and the image force acting on the dislocation are derived by means of complex method. The effect of material properties and geometric configurations of the rigid core on interracial stresses generated by a remote uniform load, rigid core and material electroelastic properties on the image force is discussed.