摘要
研究了含直线裂纹系的压电材料平面应力问题单个裂纹和双裂纹问题的封闭解答表明，在裂纹尖端，应力。
Considering continuous boundary condition of electric field at the cracks, a general solution of the plane stress problems in piezoelectric media with line cracks is provided by using function of complex variable and solving Riemann-Hilbert problems Solution in closed form and field intensity factors are given for problems of a single crack and two cracks It is shown from the solution that the stresses and electric field intensity and electric displacement have (1/2) type of singularity at the crack tip These results are compared with some results of previous researches on physics factors of the electric field singularity
出处
《力学学报》
EI
CSCD
北大核心
1997年第5期595-599,共5页
Chinese Journal of Theoretical and Applied Mechanics
关键词
压电介质
线裂纹
平面应力状态
裂纹
奇异性
piezoelectric media, line crack, plane stress problem, intensity factor, solution in closed form
