[1] B.B.Mandelbrot: The Fractal Geometry of Nature,Freemen. New York, 1983. [2] R.H.Dauskardt, F.Haubensak and R.O.Ritchie: Acta Metall., 1990, 38, 143. [3] Ted L.Anderson: Scr. Metall., 1989, 23, 97. [4] K.K.Ray and G.Mandal: Acta Metall., 1992, 40, 97. [5] G.Sauthofff Z.Metallkde, 1986, 77, 655. [6] S.Reuss and H.Vehoff: Scr. Metall., 1990, 24, 1021. [7] Yandong WANG, Shijie ZHU, Wangyue YANG and Guoliang CHEN: Acta Metall. Sin., 1993, 29(1), A43.(in Chinese) [8] Yuanding HUANG, Zuqing SUN, Wangyue YANG and Guoliang CHEN: Transaction of Nonferrous Metals Society of China, 1993, 3, 54. (in Chinese) [9] R.W.Hertzber: Deformation and Fracture Mechanics of Enginering Materials, 1983, 292. |