1. (1) Oh, H. L. and Finnie, I., On the Location of Fracture in Brittle Solids-I. Due to Static Loading, Int. J. Fract., Vol. 6 (1970), p. 287.
2. (2) Aoki, S. and Sakata, M., Statistical Approach to Delayed Failure of Brittle Materials, Int. J. Fract., Vol. 16 (1980), p. 459.
3. (3) Enoki, M., Utoh, Y. and Kishi, T., Stochastic Microfracture Process of Ceramics, Mater. Sci. Eng., Vol. 176, A (1994), p. 289.
4. (4) Suzuki, K., Tanaka, K. and Tanaka, H., Fracture Analysis of Ceramics with Small Defects Based on R-Curve Method, Trans. Jpn. Soc. Mech. Eng., (in Japanese), Vol. 59, No. 561, A (1993), p. 1292.
5. (5) Wakayama, S., Nishimura, S. and Kishi, T., Evaluation of Microcracks by AE Source Characterization and Fracture Resistance in Al2O3 Ceramics, Trans. Jpn. Soc. Mech. Eng., (in Japanese), Vol. 54, No. 508, A (1988), p. 2143.