(a) Definition of the geometry of the tower: Basically, the height
of the tower and the diameter and thickness of the different
sections.
(b) Material properties: Tensile properties and fracture toughness
of base material, Heat Affected Zone (HAZ) and weld material.
Special caution should be taken to prevent the mismatch
phenomenon (differences in yield strengths between the base
material and the weld metal greater than 10%). In such cases, a
specific mismatch analysis has to be considered [1–7].