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 -