2. Terminology and definitions

2.1 Classification of welded assemblies

In the context of this dossier, which develops in particular the aspects of design, calculation in relation to the in-service behaviour of mechanical parts obtained by welding or related techniques, a logical classification is based on the shape of the assemblies thus produced and gives rise to the following three categories:

• assemblies involving the close-up processing of a solidified metal bead (with the exception of FSW, in which the bead remains solid during processing) along elements arranged and oriented in any way. The resulting bead is a slender, prismatic volume with a generally triangular cross-section. Most of the processes listed in table