Algorithm for J-Integral Measurements by Digital Image Correlation

The work is devoted to the testing of the algorithm for calculating J-integral based on the construction of vector fields by digital image correlation (DIC) method. A comparative analysis of J-integral values calculated using DIC and instrumental data obtained in accordance with ASTM E 1820 "St...

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Bibliographic Details
Published inIOP conference series. Materials Science and Engineering Vol. 731; no. 1; pp. 12003 - 12007
Main Authors Titkov, V V, Eremin, A V, Panin, S V, Lyubutin, P S, Kozulin, A A
Format Journal Article
LanguageEnglish
Published Bristol IOP Publishing 01.01.2020
Subjects
Algorithms
Digital imaging
Fields (mathematics)
Fracture mechanics
Fracture toughness
J integral
Mathematical analysis
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Summary:The work is devoted to the testing of the algorithm for calculating J-integral based on the construction of vector fields by digital image correlation (DIC) method. A comparative analysis of J-integral values calculated using DIC and instrumental data obtained in accordance with ASTM E 1820 "Standard Test Method for Measurement of Fracture Toughness" has made. It is shown that this approach can be used for cases when the standard technique for measuring the J-integral cannot be applied, or the standard technique does not allow achieving the required accuracy for the integral determination in local areas of the loaded material.
ISSN:1757-8981
1757-899X
DOI:10.1088/1757-899X/731/1/012003