TY - JOUR

T1 - Mode I crack growth rate for yield strip model of a narrow piezoelectric ceramic body

AU - Narita, F.

AU - Shindo, Y.

N1 - Funding Information:
The work was supported by the Research Fellowships of the Japan Society for the Promotion of Science for Young Scientists.

PY - 2001/7

Y1 - 2001/7

N2 - A crack growth rate equation is found for a finite crack in a narrow transversely isotropic piezoelectric ceramic body under tensile loading. Use is made of the yield strip model. The crack is situated in the mid-plane and is parallel to the edges of the body. Integral transforms are applied to reduce the problem to a Fredholm integral equation of the second kind. The accumulated plastic displacement criterion is applied to crack growth at low stress levels. This results in a small crack growth rate equation with fourth-power stress intensity factor dependence. Numerical examples are given for piezoelectric ceramics and the crack growth rates are plotted as a function of body height to crack length ratio for various values of the electrical loads.

AB - A crack growth rate equation is found for a finite crack in a narrow transversely isotropic piezoelectric ceramic body under tensile loading. Use is made of the yield strip model. The crack is situated in the mid-plane and is parallel to the edges of the body. Integral transforms are applied to reduce the problem to a Fredholm integral equation of the second kind. The accumulated plastic displacement criterion is applied to crack growth at low stress levels. This results in a small crack growth rate equation with fourth-power stress intensity factor dependence. Numerical examples are given for piezoelectric ceramics and the crack growth rates are plotted as a function of body height to crack length ratio for various values of the electrical loads.

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U2 - 10.1016/S0167-8442(01)00058-1

DO - 10.1016/S0167-8442(01)00058-1

M3 - Article

AN - SCOPUS:0035388428

SN - 0167-8442

VL - 36

SP - 73

EP - 85

JO - Theoretical and Applied Fracture Mechanics

JF - Theoretical and Applied Fracture Mechanics

IS - 1

ER -