FINITE ELEMENT ANALYSES OF CRACKED PIEZOELECTRIC STRIP UNDER TENSION

摘要：

As traditional finite element (FE) methods are used,highly refined elements near the crack tips are necessary to obtain converged electro-elastic field results.To establish fracture criteria of a finite piezoelectric strip with less computing costs,a super comer tip element model is established based on the ad hoc FE eigenanalysis method,then it is incorporated with traditional FE models to calculate the singular stresses and electric displacements near the vertex of crack tips.The electric boundary conditions,such as the impermeable boundary condition and the permeable boundary condition,can be easily realized by adjusting the permittivity of the vacuum.

关键词： fracture criteria electro-elastic field FE ad hoc comer tip element

作者: X.C.Ping H.X.Zheng M.C.Chen J.L.Xie

作者单位: School of Mechanical and Electronical Engineering,East China Jiaotong University,Nangchang,Jiangxi 3 School of Communication,Lu Dong University,Yantai,Shandong 264025,China School of Mechanical and Electric Control Engineering,Beijing Jiaotong University,Beijing100044,Chin

会议类型: 国际会议

会议名称: 第二届国际非均质材料力学会议(The Second International Conference on Heterogeneous Material Mechanics)

会议地点: 安徽黄山

会议语种:英文

页码: 1481-1484

在线出版日期: 2008-06-03（万方平台首次上网日期，不代表论文的发表时间）