THE EFFECTS OF CRACK FACE BOUNDARY-CONDITIONS ON THE FRACTURE-MECHANICS OF PIEZOELECTRIC SOLIDS

被引：251

作者：

DUNN, ML ^{[1
]}

机构：

[1] SANDIA NATL LABS, ALBUQUERQUE, NM 87185 USA

来源：

ENGINEERING FRACTURE MECHANICS | 1994年 / 48卷 / 01期

关键词：

D O I：

10.1016/0013-7944(94)90140-6

中图分类号：

O3 [力学];

学科分类号：

08 ; 0801 ;

摘要：

The effects of crack face boundary conditions on the fracture mechanics of piezoelectric solids are studied. In previous works the assumption that in addition to being traction free, a slit crack is impermeable to electric fields has yielded the appealing result that an applied electric field can retard crack growth. Here, more accurate crack face boundary conditions regarding the electric fields are employed by analyzing a permeable elliptical flaw in a piezoelectric solid, and the results illustrate that the impermeable assumption can lead to significant errors regarding the effects of the electric fields on crack propagation based on an energy release rate criterion. The relatively simple closed form expressions that are obtained can be used as benchmark solutions for further finite element analysis of piezoelectric crack problems.

引用

页码：25 / 39

页数：15

共 23 条

[1]

[Anonymous], 1990, FUNDAMENTALS PIEZOEL

[2] DISLOCATIONS AND LINE CHARGES IN ANISOTROPIC PIEZOELECTRIC INSULATORS [J].

BARNETT, DM ;

LOTHE, J .

PHYSICA STATUS SOLIDI B-BASIC RESEARCH, 1975, 67 (01) :105-111

[3] THE DETERMINATION OF THE ELASTIC AND ELECTRIC-FIELDS IN A PIEZOELECTRIC INHOMOGENEITY [J].

BENVENISTE, Y .

JOURNAL OF APPLIED PHYSICS, 1992, 72 (03) :1086-1095

[4]

Berlincourt D.A., 1964, PHYS ACOUSTICS, V1A, P169, DOI DOI 10.1016/B978-1-4832-2857-0.50009-5

[5]

Deeg W. F., 1980, THESIS STANFORD U CA

[6] ELECTROELASTIC GREEN-FUNCTIONS FOR TRANSVERSELY ISOTROPIC PIEZOELECTRIC MEDIA AND THEIR APPLICATION TO THE SOLUTION OF INCLUSION AND INHOMOGENEITY PROBLEMS [J].

DUNN, ML .

INTERNATIONAL JOURNAL OF ENGINEERING SCIENCE, 1994, 32 (01) :119-131

[7] AN ANALYSIS OF PIEZOELECTRIC COMPOSITE-MATERIALS CONTAINING ELLIPSOIDAL INHOMOGENEITIES [J].

DUNN, ML ;

TAYA, M .

PROCEEDINGS OF THE ROYAL SOCIETY OF LONDON SERIES A-MATHEMATICAL PHYSICAL AND ENGINEERING SCIENCES, 1993, 443 (1918) :265-287

[8]

DUNN ML, IN PRESS J APPL MECH

[9] THE DETERMINATION OF THE ELASTIC FIELD OF AN ELLIPSOIDAL INCLUSION, AND RELATED PROBLEMS [J].

ESHELBY, JD .

PROCEEDINGS OF THE ROYAL SOCIETY OF LONDON SERIES A-MATHEMATICAL AND PHYSICAL SCIENCES, 1957, 241 (1226) :376-396

[10]

KUO CM, 1991, SIAM PROC S, P33

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