摘要
In 1975, B. B. Mandelbrot presented the Fractal Geometry through careful observation and comprehensive analysis of many irregular bodies with complicated shapes in nature. Metal fracture is a crack propagation process along a zigzag path, while fractured surfaces are approximately fractal, i. e. 'self-similar'. Recently, fractal analysis in metal fractured surfaces has been widely applied, and the relationships between the fractal dimension of the frac-
