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
收藏
页码：492 / 509
页数：18
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