If the surface condition after welding is poor in this area, which is usually the case, the presence of defects can be assumed and the fatigue crack nucleation process can be neglected. Design/methodology/approach – For an accurate prediction of the total lifetime of welded components the information about the material state and the welding induced residual stresses on weld toes is essential. This paper deals with a refined fatigue assessment, which considers the most important aspects for welded joints and provides an accurate lifetime prediction of welded structures. However, various assumptions have to be made in a conservative way making this approach less accurate. Different design codes and recommendations can greatly reduce the analysis effort in the design of welded structures providing a suitable balance between computational accuracy and ease of use for many industrial applications. Purpose – The present work aims to deal with a very high cycle fatigue ( n =10 9 cycles) of gas metal arc welded joints, subjected to a multiaxial and non‐proportional loading. Estimating the fatigue behavior of welded joints in the VHCF regime Estimating the fatigue behavior of welded joints in the VHCF regime
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