Scattering of Love waves by a surface-breaking crack in piezoelectric layered media

被引：51

作者：

Narita, F ^{[1
]}

Shindo, Y ^{[1
]}

机构：

[1] Tohoku Univ, Grad Sch Engn, Dept Mat Proc, Sendai, Miyagi 98077, Japan

来源：

JSME INTERNATIONAL JOURNAL SERIES A-SOLID MECHANICS AND MATERIAL ENGINEERING | 1998年 / 41卷 / 01期

关键词：

elasticity; fracture mechanics; Love wave; piezoelectric material; layered material; dynamic stress intensity factor; (J)over-cap-integral; dynamic energy release rate; stress singularities; integral transforms;

D O I：

10.1299/jsmea.41.40

中图分类号：

TH [机械、仪表工业];

学科分类号：

0802 ;

摘要：

Based on the dynamic theory of linear piezoelectricity, we investigate the scattering of Love waves by a surface-breaking crack in a layered piezoelectric solid. The piezoelectric layer is perfectly bonded to a half-space of a different elastic solid and the crack is normal to the free surface. Both cases of a partially broken layer and a completely broken layer are studied. By the use of Fourier transform techniques, the mixed boundary value problem is reduced to a singular integral equation. The singular integral equation is solved numerically to determine the dynamic stress intensity factor and the dynamic energy release rate as a function of a dimensionless frequency for various ratios of crack depth to layer thickness, and the results are presented in graphical form.

引用

页码：40 / 48

页数：9

共 18 条

[1] ELASTODYNAMIC ANALYSIS OF AN EDGE CRACK [J].