TITLE

Fracture parameters of a penny-shaped crack at the interface of a piezoelectric bi-material system

AUTHOR(S)
Tian, W. Y.; Rajapakse, R. K. N. D.
PUB. DATE
August 2006
SOURCE
International Journal of Fracture;Aug2006, Vol. 141 Issue 1/2, p37
SOURCE TYPE
Academic Journal
DOC. TYPE
Article
ABSTRACT
A penny-shaped crack at the interface of a piezoelectric bi-material system is considered. Analytical general solutions based on Hankel integral transforms are used to formulate the mixed-boundary value problem corresponding to an interfacial crack and the problem is reduced to a system of singular integral equations. The integral equations are further reduced to two systems of algebraic equations with the aid of Jacobi polynomials and Chebyshev polynomials. Thereafter, the exact expressions for the stress intensity factors and the electric displacement intensity factor at the tip of a crack are obtained. Selected numerical results are presented for various bi-material systems to portray the significant features of crack tip fracture parameters and their dependence on material properties, poling orientation and electric loading.
ACCESSION #
22898153

 

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