UDC
66.017
DOI
10.18577/2307-6046-2026-0-7-215-225
Article PDF (Russian) (1.19 MB)
How to cite
V.V. Avtaev, N.O. Yakovlev, V.A. Soldatov Method for measuring the tip of a fatigue crack by image intensity difference // Proceedings of VIAM. 2026. No. 7. DOI: 10.18577/2307-6046-2026-0-7-215-225. URL: https://viam-works.ru/en/journal/2026/7/17

Method for measuring the tip of a fatigue crack by image intensity difference

V.V. Avtaev, N.O. Yakovlev, V.A. Soldatov
Abstract

The paper presents an automatic measurement of fatigue crack peak based on the analysis of image intensity on the sample surface, which detects local changes in the crack development area and takes into account general and local shifts on the sample surface. The fatigue tests results showed the possibility to determine the crack tip position correctly. The proposed method can be used in non-destructive testing systems and in testing aviation materials to improve the reliability of cyclic cracking assessment.

Keywords
fatigue crack, measurement, intensity, image, FCGR, optical measurements, texture
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