Antiplane fracture in a prestressed and prepolarized piezoelectric crystal

被引：13

作者：

Baesu, E ^{[1
]}

Soós, E

机构：

[1] Univ Nebraska, Dept Engn Mech, Lincoln, NE 68508 USA

[2] Romanian Acad, Inst Math, RO-70700 Bucharest, Romania

来源：

IMA JOURNAL OF APPLIED MATHEMATICS | 2001年 / 66卷 / 05期

关键词：

D O I：

10.1093/imamat/66.5.499

中图分类号：

O29 [应用数学];

学科分类号：

070104 ;

摘要：

The general complex-variable solution to the equations of incremental antiplane piezoelectricity is used to solve the problem of crack propagation in a crystal in the presence of an initial stress and electric field. Remote incremental antiplane tractions are specified and an incremental traction of the same intensity is applied to the crack faces. The initial fields are shown to have a pronounced effect on the near-tip stresses and on the displacements of the crack faces. Griffith's criterion is used to determine the combination of electromechanical parameters required for incipient crack propagation.

引用

页码：499 / 508

页数：10