Fractal characterization of impact fracture surface of steel

被引：40

作者：

Tang, Wei ^{[1
,2
]}

Wang, Yong ^{[1
]}

机构：

[1] China Univ Min & Technol, Sch Mech & Elect Engn, Xuzhou 221116, Jiangsu, Peoples R China

[2] China Univ Min & Technol, Sch Chem Engn & Technol, Xuzhou 221116, Jiangsu, Peoples R China

来源：

APPLIED SURFACE SCIENCE | 2012年 / 258卷 / 10期

基金：

中国博士后科学基金;

关键词：

Fractal; Pixel-covering method; Morphology; Impact fracture; DIMENSION; TOUGHNESS; STRENGTH; ALLOY;

D O I：

10.1016/j.apsusc.2012.01.091

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

The fracture surfaces have self-similar properties and are mostly expressed in the form of two-dimensional digital image. In this paper, a pixel-covering method is applied and an improvement is made to research the fractal characterization of the steel impact fracture surface. The results show that taking boundary to the feature parts of the gray image can increase the accuracy of the fractal dimension. The linearity of the fractal dimension curves of impact fractures is obvious, indicating the impact fractures have fractal properties and the pixel-covering method can describe it. Fractal dimension can be a parameter reflecting the roughness of the impact fracture surface. Rougher the surface is, the higher is the fractal dimension. There is a positive correlation between the fractal dimension of the impact fracture and the toughness of the material. It would be possible to establish a quantitative correlation between fractal dimension, surface roughness, impact toughness, and fracture mechanism, which presents a good potential to material and failure analysis of material. (C) 2012 Elsevier B.V. All rights reserved.

引用

页码：4777 / 4781

页数：5

共 32 条

[1] Fractal model to predict the crack roughness effect on the local bending compliance of circular shafts [J].

Abuzeid, OM ;

Dado, MHF .

INTERNATIONAL JOURNAL OF MECHANICAL SCIENCES, 2004, 46 (05) :695-702

[2] Pore surface fractal analysis of palladium-alumina ceramic membrane using Frenkel-Halsey-Hill (FHH) model [J].

Ahmad, A. L. ;

Mustafa, N. N. N. .

JOURNAL OF COLLOID AND INTERFACE SCIENCE, 2006, 301 (02) :575-584

[3] Fractal modeling of the J-R curve and the influence of the rugged crack growth on the stable elastic-plastic fracture mechanics [J].

Alves, Lucas Maximo ;

da Silva, Rosana Vilarim ;

de Lacerda, Luiz Alkimin .

ENGINEERING FRACTURE MECHANICS, 2010, 77 (13) :2451-2466

[4]

Bigerelle M, 2004, ENG FRACT MECH, V71, P1081, DOI 10.1016/S0013-7944(03)0136-X

[5] Three-dimensional fractal analysis of fracture surfaces in titanium-iron particulate reinforced hydroxyapatite composites: relationship between fracture toughness and fractal dimension [J].

Chang, Q. ;

Chen, D. L. ;

Ru, H. Q. ;

Yue, X. Y. ;

Yu, L. ;

Zhang, C. P. .

JOURNAL OF MATERIALS SCIENCE, 2011, 46 (18) :6118-6123

[6] Fractals and fracture [J].

Charkaluk, E ;

Bigerelle, M ;

Iost, A .

ENGINEERING FRACTURE MECHANICS, 1998, 61 (01) :119-139

[7] The surface fractal dimension of the soil-pore interface as measured by image analysis [J].

Dathe, A ;

Eins, S ;

Niemeyer, J ;

Gerold, G .

GEODERMA, 2001, 103 (1-2) :203-229

[8] The effect of crack propagation mechanism on the fractal dimension of fracture surfaces in steels [J].

Dlouhy, I. ;

Strnadel, B. .

ENGINEERING FRACTURE MECHANICS, 2008, 75 (3-4) :726-738

[9]

Feng Z., 2001, J JIANGSU U SCI TECH, P92

[10] Fractal strength of cement gels and universal dimension of fracture surfaces [J].

Ficker, T. .

THEORETICAL AND APPLIED FRACTURE MECHANICS, 2008, 50 (02) :167-171

← 1 2 3 4 →