BEM BASED EVALUATION OF PIEZOELECTRIC CRACK-TIP FRACTURE PARAMETERS USING INTERACTION INTEGRAL AND MODIFIED CRACK CLOSURE INTEGRAL

摘要：

In this paper,the crack-tip field intensity factors of a piezoelectric crack are respectively evaluated by an interaction integral (M-integral) and a modified crack closure integral method (MCCI).By applying the dual BEM to piezoelectric crack models,the crack-tip fracture parameters using M-integral and MCCI are verified by the existing analytical solutions and compared with the results by the classical displacement extrapolation and J-integral methods.Some examples are presented to show the high accuracy of M-integral and the improvement of MCCI for the piezoelectric crack problems.

关键词： Interaction integral MCCI Field intensity factors Piezoelectric Dual BEM

作者: Li-li YUN Jun LEI Chuan-zeng ZHANG

作者单位: Department of Engineering Mechanics, Beijing University of Technology, Beijing, 100124, China Department of Civil Engineering, University of Siegen, D-57068 Siegen, Germany

会议类型: 国际会议

会议名称: The 2016 Symposium on Piezoelectricity,Acoustic Waves and Device Applications(2016全国压电和声波理论及器件技术研讨会)

会议地点: 西安

会议语种:英文

页码: 181-185

在线出版日期: 2016-10-21（万方平台首次上网日期，不代表论文的发表时间）