Calculating the Fractal Dimension of the Material Fracture Surface Based on the Triangular Prism Surface Area Method

摘要

Fractal dimension is one of the parameters for characterizing the fracture surface of materials quantitatively, and is also the basis for analyzing the fracture mechanism of materials, so it is very important in mechanic of materials. In order to improve the efficiency of calculation on fractal dimension of fracture surface of materials by triangular prism surface area method (TPSAM), a program for TPSAM based on Matlab 7.1 was compiled and verified by using of two different samples. The results indicated that the program was easy to be read and operate, and the calculated fractal dimension of the samples was in a range from 2 to 3. Therefore, the program was accurate and could be used widely.