Fractal dimension of metallic fracture surface

2006 ◽  
Vol 141 (1-2) ◽  
pp. 269-286 ◽  
Author(s):  
Piotr Kotowski
2020 ◽  
pp. 74-82
Author(s):  
A. S. Buyakov ◽  
◽  
Yu. A. Zenkina ◽  
S. P. Buyakova ◽  
S. N. Kulkov ◽  
...  

2020 ◽  
Vol 11 (5) ◽  
pp. 1253-1259
Author(s):  
A. S. Buyakov ◽  
Yu. A. Zenkina ◽  
S. P. Buyakova ◽  
S. N. Kulkov

1993 ◽  
Vol 12 (20) ◽  
pp. 1616-1618 ◽  
Author(s):  
J. Xinggang ◽  
C. Jianzhong ◽  
M. Longxiang

2017 ◽  
Vol 2017 ◽  
pp. 1-9 ◽  
Author(s):  
Wantong Cai ◽  
Guoping Cen ◽  
Haifu Wang

Fractal theory is introduced in fracture surface research of alkali-slag concrete (ASC) under freeze-thaw cycles; crack distribution of ASC fracture surface and freeze-thaw damage zone were calculated. Through fractal analysis of ASC sample fracture surfaces, relevance between section fractal dimension and fracture toughness and relationship between material composition and section fractal dimension are clarified. Results show that the specimen’s cracks before freeze-thaw extend along force direction gently, and there are more twists and turns after freezing and thawing; the fractal dimension D also grows from 1.10 to 1.33. SEM internal microcracks’ D of ASC internal microstructure after freezing and thawing is 1.37; 0 to 300 times ASC fractal dimension under freezing and thawing is between 2.10 and 2.23; with freeze-thaw times increasing, ASC fracture toughness decreases and fractal dimension increases, the fractal dimension and fracture toughness have a good linear relationship, and the fractal dimension can reflect the toughening effect of ASC. It is very feasible to evaluate ASC fracture behaviour under freezing and thawing with the fractal theory. Fractal dimension generally increases with activator solution-slag (A/S for short) or slag content. The greater the amount of A/S or slag content, the lower the dimension.


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