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Assessment of the null-indicator method for the detection of fatigue cracks in structural elements.

Authors :
Leonets', V.
Lukashevich, A.
Degtyarev, V.
Chaus, L.
Source :
Strength of Materials. May2012, Vol. 44 Issue 3, p325-332. 8p. 1 Color Photograph, 1 Black and White Photograph, 1 Diagram, 1 Chart, 3 Graphs.
Publication Year :
2012

Abstract

The strain-measuring null-indicator method for the detection of fatigue cracks in electric locomotive truck frames, which are difficult to reach for visual inspection, was developed and in-service tried. The sensitivity of the method is established to increase after high-frequency mechanical hammering of St. 3sp low-carbon steel butt welds. The method provides detecting the nucleation of fatigue cracks in the subsurface steel layers. [ABSTRACT FROM AUTHOR]

Details

Language :
English
ISSN :
00392316
Volume :
44
Issue :
3
Database :
Academic Search Index
Journal :
Strength of Materials
Publication Type :
Academic Journal
Accession number :
78305794
Full Text :
https://doi.org/10.1007/s11223-012-9385-2