Effect of finite cracking on the electromechanical coupling properties of piezoelectric materials

被引：0

作者：

Wang, B. L. ^{[1
]}

Han, Jie-Cai ^{[1
]}

机构：

[1] Harbin Inst Technol, Ctr Composite Mat, Harbin 150001, Peoples R China

来源：

INTERNATIONAL JOURNAL OF FRACTURE | 2010年 / 164卷 / 02期

基金：

美国国家科学基金会;

关键词：

Piezoelectric materials; Effective properties; Cracking; BOUNDARY-CONDITIONS; FRACTURE-MECHANICS; ELECTRIC FRACTURE; INTERFACE CRACK; VICKERS INDENTATION; CONDUCTING CRACKS; SATURATION MODEL; PERMEABLE CRACK; INTERLAYER; ELEMENT;

D O I：

10.1007/s10704-010-9474-9

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Cracks and porosities inside the piezoelectric materials can weaken the electromechanical coupling effect, and hence influence the electromechanical coupling behavior of piezoelectric materials considerably. This paper studies the effect of internal cracking on the effective properties of piezoelectric media. It focuses on the piezoelectric medium of finite size with finite crack. The mechanical and electric fields in the piezoelectric material and the crack are formulated by singular integral method. Effects of crack size, medium border, and electric permeability of the crack on the overall electromechanical properties of the piezoelectric material are obtained and displayed graphically. In addition, the crack tip coupling electromechanical field intensity factors are also presented as they are not available in open literature for a finite crack in a finite piezoelectric media.

引用

页码：201 / 212

页数：12

共 37 条

[1] A crack with an electric displacement saturation zone in an electrostrictive material [J].

Beom, H. G. ;

Kim, Y. H. ;

Cho, C. ;

Kim, C. B. .

ARCHIVE OF APPLIED MECHANICS, 2006, 76 (1-2) :19-31

[2] Asymptotic analysis of an impermeable crack in an electrostrictive material subjected to electric loading [J].

Beom, H. G. ;

Kim, Y. H. ;

Cho, C. ;

Kim, C. B. .

INTERNATIONAL JOURNAL OF SOLIDS AND STRUCTURES, 2006, 43 (22-23) :6869-6886

[3] Fracture and domain switching by indentation in barium titanate single crystals [J].

Busche, MJ ;

Hsia, KJ .

SCRIPTA MATERIALIA, 2001, 44 (02) :207-212

[4] A micro-electro-mechanical model for polarization switching of ferroelectric materials [J].

Chen, W ;

Lynch, CS .

ACTA MATERIALIA, 1998, 46 (15) :5303-5311

[5] Effects of an electric field on the fracture toughness of poled lead zirconate titanate ceramics [J].

Fu, R ;

Zhang, TY .

JOURNAL OF THE AMERICAN CERAMIC SOCIETY, 2000, 83 (05) :1215-1218

[6] Local and global energy release rates for an electrically yielded crack in a piezoelectric ceramic [J].

Gao, HJ ;

Zhang, TY ;

Tong, P .

JOURNAL OF THE MECHANICS AND PHYSICS OF SOLIDS, 1997, 45 (04) :491-510

[7]

Gao HJ, 1996, INT J FRACTURE, V79, pR25, DOI 10.1007/BF00032938

[8] Theory of indentation of piezoelectric materials [J].

Giannakopoulos, AE ;

Suresh, S .

ACTA MATERIALIA, 1999, 47 (07) :2153-2164

[9] On the influence of the electric permeability on an interface crack in a piezoelectric bimaterial compound [J].

Govorukha, VB ;

Loboda, VV ;

Kamlah, M .

INTERNATIONAL JOURNAL OF SOLIDS AND STRUCTURES, 2006, 43 (7-8) :1979-1990

[10] Finite element analysis of cracks in piezoelectric materials taking into account the permittivity of the crack medium [J].

Gruebner, O ;

Kamlah, M ;

Munz, D .

ENGINEERING FRACTURE MECHANICS, 2003, 70 (11) :1399-1413

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