使用分形维数对超高强度钢断裂韧性的研究

摘要

作者应用分形理论研究了超高强度钢D6AC断口的分形维数DH与断裂韧性的关系，并按测定DH的数字图象法原理，试验得出试样的断裂韧性与分形维数DH成正相关，从物理角度解释了断口分形维数与材料性能之间的关系.可为分形理论拓宽其应用提供基本依据.%The authors show that fractal dimension of fracture surface in the ultrahigh strength steel has been investigatied by the use of fractal theory and describes the measurement principle of digital image analysis to he used determination of fractal dimension. Exciting the positive correlation between fractal dimension and fractal toughness of specimen has been explained from the point of view of physics. It seems hopeful to extend the application of fractal dimension to the other field.