集中载荷作用下的压电材料反平面界面渗透裂纹  

Antiplane strain Problems of Electrically Permeables Cracks Between Bonded Dissimilar Piezoelectric Materials under the Concentrated Loads

作　　者：刘新民[1] 侯密山 

机构地区：[1]燕山大学土木工程与力学系,秦皇岛066004

出　　处：《燕山大学学报》1999年第1期23-26,共4页Journal of Yanshan University

摘　　要：用复变函数解析延展原理。研究了集中载荷作用下的不同压电材料反平面应变状态的电渗透型界面裂纹的耦合场；对单个裂纹，给出了封闭形式的复函数解和场强度因子。结果表明。在裂尖处耦合场有（１／２）阶的奇异性。This paper researchs on coupling field for antiplane strain problems of the electrically permeable slit cracks between bonded dissimilar piezoelectric materials under the concentrated forces by using analysis continuation principle of functions of complex variable. Solutions in closed-form of the complex potentials and the field intensity factors are given for a single crack. It is shown from the solutions that the coupled field has order of singularity at the crack tip,

关 键 词：压电材料 裂纹 反平面应变 强度因子 集中载荷 

分 类 号：O346.1[理学—固体力学]