In the present paper, the Fourier transform method (FTM) was applied in a study of fatigue fracture surfaces of commercial aluminum in order to relate the geometrical parameters on the fracture surface to the microstructure of the material. The results indicate that the power spectrum and the wave number are inversely related. An exponent n was indexed by curve fitting the power spectrum peaks of the fracture profile and was shown to correlate with the crack propagation rate da/dN, and da/dN can be inferred approximately from the correlation function.
参考文献
上一张
下一张
上一张
下一张
计量
- 下载量()
- 访问量()
文章评分
- 您的评分：
-
10%
-
20%
-
30%
-
40%
-
50%