Size Effect of a Crack in a Micropolar Piezoelectric Medium
A crack problem in a micropolar piezoelectric solid is considered. By using simplified constitutive relations, the problem can be reduced to the solution of a set of Cauchy singular integral equations with the help of Fourier integral transform technique. Numerical results for stress intensity factors, couple stress intensity factors and electric displacement intensity factors show that micropolar theory can be expected to explain certain size effects in piezoelectric solids.
M.H Aliabadi, S. Abela, S. Baragetti, M. Guagliano and Han-Seung Lee
G. Y. Huang and S. W. Yu, "Size Effect of a Crack in a Micropolar Piezoelectric Medium", Key Engineering Materials, Vols. 417-418, pp. 525-528, 2010