Fatigue microcrack detection with digital image correlation

被引：51

作者：

Rupil, J. ^{[1
,2
]}

Roux, S. ^{[1
]}

Hild, F. ^{[1
]}

Vincent, L. ^{[2
]}

机构：

[1] PRES UniverSud Paris, LMT Cachan, ENS Cachan, CNRS,UPMC, F-94235 Cachan, France

[2] CEA Saclay, DEN DANS, DMN, SRMA,LC2M, Cachan, France

来源：

JOURNAL OF STRAIN ANALYSIS FOR ENGINEERING DESIGN | 2011年 / 46卷 / 06期

关键词：

crack initiation; digital image correlation; mechanical fatigue; microcrack detection; AUSTENITIC STAINLESS-STEEL; STRESS INTENSITY FACTOR; CRACK-GROWTH; SPECTRAL APPROACH; INITIATION; BEHAVIOR;

D O I：

10.1177/0309324711402764

中图分类号：

TH [机械、仪表工业];

学科分类号：

0802 ;

摘要：

A digital image correlation method is proposed to detect and quantify automatically microcracks on the surface of a specimen during a fatigue test. The proposed procedure allows for a fast scanning of the entire surface with all possible (pixel-wise) locations of microcrack centres and the detection of cracks having a sub-pixel opening. An experimental test case is presented as an illustration of the method and a comparison with a replica technique is performed.

引用

页码：492 / 509

页数：18

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