| Fractal Microstructure of Fracture Surfaces and Fracture Energy of Metals |
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| 收稿时间： | 1997-11-28 |
Fractal Microstructure of Fracture Surfaces and Fracture Energy of Metals |
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| Authors: | Duanwen SH Jian JIANG and Chiwei LUNGHaoZhe LIU Taiping LOU and Hongbo LIU |
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| Affiliation: | Duanwen SH,Jian JIANG and Chiwei LUNG(International Centre for Materials Physics,Institute of Metal Research,Chinese Academy of Sciences,Shenyang,China)HaoZhe LIU,Taiping LOU and Hongbo LIU(State Key Laboratory for RSA,Institute of Metal Rese |
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| Abstract: | Using a fractat model, we give a new interpretation of the reversed sigmoidal curves of fracture surface profile length obtained in some experiments. It is pointed out that a single parameter (fractal dimension D) is not sufficient to characterize a fractal curve completely. It is shown that the initiator length L0 is also important to characterize a fractal curve. We have derived a formula which correlate the fracture energy with the fractal parameters of the fracture surfaces and analyzed some experimental data. |
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