压电材料反平面应变状态的椭圆夹杂及界面裂纹问题  

THE ELLIPTICAL INCLUSION PROBLEM AND INTERFACE CRACK PROBLEM UNDER ANTI—PLANE STRAIN CONDITION IN PIEZOELECTRIC MATERIAL

作　　者：王旭[1] 王子昆[1] 

机构地区：[1]西安交通大学

出　　处：《上海力学》1993年第4期26-34,共9页Chinese Quarterly Mechanics

基　　金：陕西省自然科学基金

摘　　要：本文采用共轭法求解了压电材料反平面变形的椭圆夹杂及界面裂纹问题,前者的解答表明当远场外力均匀分布时夹杂内的应力场及电位移场是常量,后者解答表明在界面裂纹的裂尖处,应力及电位移都具有 r^(-1/2)的奇异性。In this paper,the elliptical inclusion problem and interface crack problem under anti-plane straincondition in piezoelectire material are solved by using the conjugate method.The former solution shows that when the far field external loads are uniform,the stresses andelectric displacement fields in the inclusion are uniform.The latter solution shows that the stresses andelectric displacements both have the singulity at the crack tip.

关 键 词：压电材料 反平面问题 界面裂纹 

分 类 号：TM220.13[一般工业技术—材料科学与工程]