A frequency‐domain approach for damage detection in welded structures

The goal of the present paper is to apply a multiaxial fatigue criterion, formulated in frequency-domain, welded components. In particular, proposed procedure requires (i) evaluate stress field at so-called hotspot and (ii) compute damage. A case study, represented by fillet-welded tubular T-joints under random loading, examined assess validity above estimating crack nucleation position. Finally, theoretical results are also compared with those derived means similar procedure, which has recently been some authors, but time-domain.