中文摘要：

这份报纸处理一个模式 III 界面的裂缝题目到反飞机应力和在里面飞机电场。分析专注于从不一致的 ferroelectric-ferroelastic 领域由一个电场切换调节破裂坚韧。电的装载改变不对称的切换地区的尺寸。采用重量功能方法，我们获得韧化为的电子上依赖的开关静止并且变得界面的伪静电干扰分别地裂开。多域答案为杆得非、杆得充分的铁电体 composites 被导出。数字结果在批评应用压力紧张因素调节的电场上被介绍。研究提供方法由改变电场优化铁电体 composites 的破裂性质。

英文摘要：

This paper deals with a mode III interfacial crack subject to anti-plane stress and in-plane electric fields. The analysis concentrates on the tuning of fracture toughness from non-uniform ferroelectric-ferroelastic domain switching by an electric field. The electric loading changes the size of the asymmetric switching zone. Employing the weight function method, we obtain the electrically-dependent switch toughening for stationary and quasi-static growing interfacial cracks, respectively. Multi-domain solutions are derived for non-poled and fully-poled ferroelectric composites. Numerical results are presented on the electric field tuning of the critical applied stress intensity factor. The research provides ways to optimize fracture properties of ferroelectric composites by altering the electric field.