摘要
研究了无限长压电材料条中共线并与材料界面平行的双裂纹受反平面剪切冲击作用的问题.假设裂纹面上的边界条件为电渗透型的,采用积分变换和对偶积分方程方法,获得了裂纹尖端应力场.数值结果显示应力强度因子与裂纹的几何尺寸、压电材料长条宽度及材料性质有关.
The problem of two collinear lying at the mid-plane of a piezoelectric strip subjected to anti-plane shear impact is studied. It is assumed that boundary conditions are permeable along the crack surface. By using integral transforms and dual integral equations, the local stress field is obtained. Numerical results show that stress intensity factor relates to crack geometrical size, the width of the piezoelectric strip and the character of the material.
出处
《宁夏大学学报（自然科学版）》
CAS
北大核心
2007年第4期297-300,共4页
Journal of Ningxia University(Natural Science Edition)
基金
国家自然科学基金资助项目(10661009)
宁夏自然科学基金资助项目(NZ0604)
关键词
对偶积分方程
应力强度因子
裂纹
压电材料
dual integral equations
stress intensity factor
crack
piezoelectric material strip
