Image processing techniques applied to automatic measurement of the fatigue-crack

被引：2

作者：

Ryu, DH ^{[1
]}

Nahm, SH

机构：

[1] Hansei Univ, Kunpo, Kyunggi, South Korea

[2] Korea Res Inst Stand & Sci, Taejon, South Korea

来源：

ADVANCES IN FRACTURE AND STRENGTH, PTS 1- 4 | 2005年 / 297-300卷

关键词：

fatigue crack; automatic measurement; image processing;

D O I：

10.4028/www.scientific.net/KEM.297-300.34

中图分类号：

TQ174 [陶瓷工业]; TB3 [工程材料学];

学科分类号：

0805 ; 080502 ;

摘要：

A crack detection system was developed to observe growth behaviour of fatigue crack using the digital image processing techniques. The crack propagation behaviour was observed successfully by combining block matching method and inclination threshold value method. The data obtained with this new system agreed with the existent data and the standard deviation was 0.03%. If the proposed method is utilized to develop a crack monitoring system to observe the crack growth behaviour automatically, the time and effort needed for a fatigue test could be dramatically reduced. And also it will be easier to estimate and to manage efficiently the safety and residual life of industrial facilities.

引用

页码：34 / 39

页数：6

共 8 条

[1]

Duda R. O., 1973, PATTERN CLASSIFICATI

[2]

ICHIKAWA M, 1992, JSME INT J I-SOLID M, V35, P241, DOI 10.1299/jsmea1988.35.2_241

[3]

Ishii A., 1993, Journal of the Society of Materials Science, Japan, V42, P1231, DOI 10.2472/jsms.42.1231

[4] Observation on the growth behavior of small surface cracks using remote measurement system [J].

Nahm, SH ;

Suh, CM .

NONTRADITIONAL METHODS OF SENSING STRESS, STRAIN, AND DAMAGE IN MATERIALS AND STRUCTURES, 1997, 1318 :71-84

[5]

Nahm SH, 1996, J MATER SCI LETT, V15, P422

[6]

Tou T., 1974, PATTERN RECOGN, DOI DOI 10.1002/ZAMM.19770570626

[7]

2000, ANN BOOK ASTM STA 10, P130

[8]

1999, ANN BOOK ASTM STA 10, V647, P674

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