Once the tensile properties of the material are known, the
Failure Assessment Line (FAL) can be defined, which determines
the region corresponding to safe conditions in the component
(area within the FAL and the coordinate axes defined below). Here,
FAD Option 1 in FITNET FFS Procedure (Eq. (1)) for discontinuous
yielding material has been used (given that the materials used in
the towers usually show the Lüders strain during yielding), which