摘要
研究含双周期裂纹的电磁弹性材料在远场反平面机械载荷和面内电磁载荷作用下的电磁弹性响应,利用椭圆函数理论和保角变换技术,获得电磁弹性场的精确解,推导裂纹尖端的应力强度因子、电位移强度因子和磁感应强度因子。算例分析表明,裂纹分布特征对材料断裂性能有重要的影响,场强因子对排间距和列间距存在着截然相反的依赖性。
An infinite magnetoelectroelastic solid containing a doubly periodic array of cracks under antiplane mechanical load and inplane magnetoelectric load is investigated. By using of the theory of double period function combined with the technique of conformal mapping, the exact solution is obtained. The stress intensity factor, electrical displacement intensity factor and magnetic induction intensity factor are given. It is found that crack distribution plays an important role in fracture behavior of materials. Field intensity factors show the contrary dependence on the stack and column spacings of the cracks.
出处
《兵器材料科学与工程》
CAS
CSCD
2009年第1期17-20,共4页
Ordnance Material Science and Engineering
关键词
场强因子
电磁弹性材料
双周期分布
裂纹
field intensity factor
magnetoelectroelastic materials
doubly periodic array
crack
