THE INFLUENCE OF ELECTROSTATIC FORCE ON THE MOVING INTERFACIAL CRACK BETWEEN DISSIMILAR PIEZOELECTRIC MATERIALS

摘要：

　　A crack with fixed length moving at constant velocity along the interface between dissimilar piezoelectric materials is systematically discussed.Based on the extended Stroh formalism and Muskhelishvilis method, the explicit expressions of electroelastic field and dynamic stress and electric intensity factors are deduced.The influences of electrostatic forces and the crack speed on the piezoelectric fracture behavior are investigated with the uniform remote mechanical and electrical loads.In which the electrical boundary condition adopts the semi-permeable assumption.According to the numerical results, the effect mechanism of electrostatic force and crack speed is discussed.

关键词： Electrostatic force Moving crack Plane problem Interface fracture

作者: Lu-qiao QI Yan SHI Cun-fa GAO

作者单位: State Key Laboratory of Mechanics and Control of Mechanical Structures, Nanjing University of Aeronautics and Astronautics,Nanjing 210016, China

会议类型: 国际会议

会议名称: The 2017 Symposium on Piezoelectricity,Acoustic Waves and Device Applications(2017全国压电和声波理论及器件技术研讨会)

会议地点: 成都

会议语种:英文

页码: 303-307

在线出版日期: 2017-10-27（万方平台首次上网日期，不代表论文的发表时间）