Growth of fatigue cracks in specimens welded under bending with torsion

Growth of fatigue cracks in specimens welded under bending with torsion

Dariusz Rozumek, Janusz Lewandowski

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Abstract. The paper presents the results of crack development in specimens welded from S355 steel under bending and torsional loading. Welded joints, as a method of inseparable joining of technical structures, are commonly used in many areas of human activity. The aim of the study was to analyse the influence of the shape of concave and convex fillet joints on the development of fatigue cracks. The experimental tests (fatigue tests) were performed with the use of the fatigue machine MZGS-100, at a constant amplitude of the moment Ma = 9.20 N·m, and the stress ratio R = – 1 with a load frequency of 28.4 Hz.

Welding, Bending with Torsion, Fatigue Crack Growth, Hardness, Microstructure, Fillet Welds

Published online , 7 pages
Copyright © 2023 by the author(s)
Published under license by Materials Research Forum LLC., Millersville PA, USA

Citation: Dariusz Rozumek, Janusz Lewandowski, Growth of fatigue cracks in specimens welded under bending with torsion, Materials Research Proceedings, Vol. 30, pp 68-74, 2023


The article was published as article 10 of the book Experimental Mechanics

Content from this work may be used under the terms of the Creative Commons Attribution 3.0 license. Any further distribution of this work must maintain attribution to the author(s) and the title of the work, journal citation and DOI.

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