Piezothermoelastic analysis of a piezoelectric material with an elliptic cavity under uniform heat flow

被引：27

作者：

Lu, P ^{[1
]}

Tan, MJ

Liew, KM

机构：

[1] Univ Sci & Technol China, Dept Modern Mech, Anhua 230026, Peoples R China

[2] Nanyang Technol Univ, Sch Mech & Prod Engn, Singapore 639798, Singapore

来源：

ARCHIVE OF APPLIED MECHANICS | 1998年 / 68卷 / 10期

关键词：

piezoelectric material; inclusion; thermal stress concentration; Stroh formalism;

D O I：

10.1007/s004190050199

中图分类号：

O3 [力学];

学科分类号：

08 ; 0801 ;

摘要：

The problem of a two-dimensional piezoelectric material with an elliptic cavity under a uniform heat flow is discussed, based on the modified Stroh formalism for the piezothermoelastic problem. The exact electric boundary conditions at the rim of the hole are introduced in the analysis. Expressions for the elastic and electric variables induced within and outside the cavity are derived in closed form. Hoop stress around the hole and electric fields in the hole are obtained. The limit situation when the hole is reduced to a slit crack is discussed, and the intensity factors for the problem are obtained.

引用

页码：719 / 733

页数：15

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