Fatigue resistance of welded joints
Fatigue behaviour of welded joints
Article REF: M4185 V1
Fatigue resistance of welded joints
Fatigue behaviour of welded joints

Authors : Isabel HUTHER, Laurent JUBIN

Publication date: December 10, 2025 | Lire en français

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3. Fatigue resistance of welded joints

3.1 Influencing factors

The fatigue strength of welded joints is influenced by a number of parameters related to the geometry and welding process, as well as the environment and treatments (coatings, finishing).

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3.1.1 Influence of stress concentrations

The specific geometry of a welded joint, particularly the weld toe, is a particularly favorable location for the initiation of fatigue cracks. This is due to the local increase in stress, which depends mainly on the quality of the weld toe connection...

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